Abstract

Abstract: Single nanowire solar cells are a promising candidate as nanoelectronic power sources. Metallic cores were integrated in single nanowire solar cells, and the influence of the silver core on the absorption efficiency and the short circuit current was studied in this work. A Full-wave Vectorial Finite Element Method approach was used to rigorously solve Maxwell’s equations in two dimensions. The photon absorption in solar cells was modulated delicately to achieve higher absorption efficiencies and short circuit currents, by tuning the core size and radius of nanowire solar cells. The light trapping stemmed mainly from the localized surface plasmons and also from Mie scattering and leaky mode resonances. The results showed that an enhancement of 16.6% in the photocurrent could be achieved by α-Si nanowire solar cells with the proper core size and filling-ratio compared to that without silver core.

© 2012 OSA

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Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
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[CrossRef] [PubMed]

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[CrossRef] [PubMed]

J. Zhu, S.- Shu-min Zhao, J.-W. Zhao, and J.-J. Li, “Dielectric wall controlled resonance light scattering of coated Long gold nanowire,” Curr. Nanosci. 7(3), 377–380 (2011).
[CrossRef]

2010 (6)

H. A. Atwater and A. Polman, “Plasmonics for improved photovoltaic devices,” Nat. Mater. 9(3), 205–213 (2010).
[CrossRef] [PubMed]

M. M. Adachi, M. P. Anantram, and K. S. Karim, “Optical properties of crystalline-amorphous core-shell silicon nanowires,” Nano Lett. 10(10), 4093–4098 (2010).
[CrossRef] [PubMed]

E. Garnett and P. Yang, “Light trapping in silicon nanowire solar cells,” Nano Lett. 10(3), 1082–1087 (2010).
[CrossRef] [PubMed]

L. Cao, P. Fan, A. P. Vasudev, J. S. White, Z. Yu, W. Cai, J. A. Schuller, S. Fan, and M. L. Brongersma, “Semiconductor nanowire optical antenna solar absorbers,” Nano Lett. 10(2), 439–445 (2010).
[CrossRef] [PubMed]

J. Wallentin, J. M. Persson, J. B. Wagner, L. Samuelson, K. Deppert, and M. T. Borgström, “High-performance single nanowire tunnel diodes,” Nano Lett. 10(3), 974–979 (2010).
[CrossRef] [PubMed]

B. Tian, T. Cohen-Karni, Q. Qing, X. Duan, P. Xie, and C. M. Lieber, “Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes,” Science 329(5993), 830–834 (2010).
[CrossRef] [PubMed]

2009 (4)

J. Kupec and B. Witzigmann, “Dispersion, wave propagation and efficiency analysis of nanowire solar cells,” Opt. Express 17(12), 10399–10410 (2009).
[CrossRef] [PubMed]

L. Cao, J. S. White, J.-S. Park, J. A. Schuller, B. M. Clemens, and M. L. Brongersma, “Engineering light absorption in semiconductor nanowire devices,” Nat. Mater. 8(8), 643–647 (2009).
[CrossRef] [PubMed]

R. Yan, D. Gargas, and P. Yang, “Nanowire photonics,” Nat. Photonics 3(10), 569–576 (2009).
[CrossRef]

Y. Dong, B. Tian, T. J. Kempa, and C. M. Lieber, “Coaxial group III-nitride nanowire photovoltaics,” Nano Lett. 9(5), 2183–2187 (2009).
[CrossRef] [PubMed]

2008 (4)

T. J. Kempa, B. Tian, D. R. Kim, J. Hu, X. Zheng, and C. M. Lieber, “Single and tandem axial p-i-n nanowire photovoltaic devices,” Nano Lett. 8(10), 3456–3460 (2008).
[CrossRef] [PubMed]

A. I. Boukai, Y. Bunimovich, J. Tahir-Kheli, J.-K. Yu, W. A. Goddard, and J. R. Heath, “Silicon nanowires as efficient thermoelectric materials,” Nature 451(7175), 168–171 (2008).
[CrossRef] [PubMed]

A. I. Hochbaum, R. Chen, R. D. Delgado, W. Liang, E. C. Garnett, M. Najarian, A. Majumdar, and P. Yang, “Enhanced thermoelectric performance of rough silicon nanowires,” Nature 451(7175), 163–167 (2008).
[CrossRef] [PubMed]

C. K. Chan, H. Peng, G. Liu, K. McIlwrath, X. F. Zhang, R. A. Huggins, and Y. Cui, “High-performance lithium battery anodes using silicon nanowires,” Nat. Nanotechnol. 3(1), 31–35 (2008).
[CrossRef] [PubMed]

2007 (3)

L. Tsakalakos, J. Balch, J. Fronheiser, B. A. Korevaar, O. Sulima, and J. Rand, “Silicon nanowire solar cells,” Appl. Phys. Lett. 91(23), 233117 (2007).
[CrossRef]

B. Tian, X. Zheng, T. J. Kempa, Y. Fang, N. Yu, G. Yu, J. Huang, and C. M. Lieber, “Coaxial silicon nanowires as solar cells and nanoelectronic power sources,” Nature 449(7164), 885–889 (2007).
[CrossRef] [PubMed]

C. Langhammer, B. Kasemo, and I. Zorić, “Absorption and scattering of light by Pt, Pd, Ag, and Au nanodisks: absolute cross sections and branching ratios,” J. Chem. Phys. 126(19), 194702 (2007).
[CrossRef] [PubMed]

2006 (1)

O. Hayden, R. Agarwal, and C. M. Lieber, “Nanoscale avalanche photodiodes for highly sensitive and spatially resolved photon detection,” Nat. Mater. 5(5), 352–356 (2006).
[CrossRef] [PubMed]

2003 (1)

2002 (1)

Y. Yin, Y. Lu, Y. Sun, and Y. Xia, “Silver nanowires can be directly coated with amorphous silica to generate well-controlled coaxial nanocables of silver/silica,” Nano Lett. 2(4), 427–430 (2002).
[CrossRef]

Adachi, M. M.

M. M. Adachi, M. P. Anantram, and K. S. Karim, “Optical properties of crystalline-amorphous core-shell silicon nanowires,” Nano Lett. 10(10), 4093–4098 (2010).
[CrossRef] [PubMed]

Agarwal, R.

O. Hayden, R. Agarwal, and C. M. Lieber, “Nanoscale avalanche photodiodes for highly sensitive and spatially resolved photon detection,” Nat. Mater. 5(5), 352–356 (2006).
[CrossRef] [PubMed]

Anantram, M. P.

M. M. Adachi, M. P. Anantram, and K. S. Karim, “Optical properties of crystalline-amorphous core-shell silicon nanowires,” Nano Lett. 10(10), 4093–4098 (2010).
[CrossRef] [PubMed]

Atwater, H. A.

H. A. Atwater and A. Polman, “Plasmonics for improved photovoltaic devices,” Nat. Mater. 9(3), 205–213 (2010).
[CrossRef] [PubMed]

Balch, J.

L. Tsakalakos, J. Balch, J. Fronheiser, B. A. Korevaar, O. Sulima, and J. Rand, “Silicon nanowire solar cells,” Appl. Phys. Lett. 91(23), 233117 (2007).
[CrossRef]

Bian, Z.

S. Zhang, C. Ji, Z. Bian, R. Liu, X. Xia, D. Yun, L. Zhang, C. Huang, and A. Cao, “Single-wire dye-sensitized solar cells wrapped by carbon nanotube film electrodes,” Nano Lett. 11(8), 3383–3387 (2011).
[CrossRef] [PubMed]

Borgström, M. T.

J. Wallentin, J. M. Persson, J. B. Wagner, L. Samuelson, K. Deppert, and M. T. Borgström, “High-performance single nanowire tunnel diodes,” Nano Lett. 10(3), 974–979 (2010).
[CrossRef] [PubMed]

Boukai, A. I.

A. I. Boukai, Y. Bunimovich, J. Tahir-Kheli, J.-K. Yu, W. A. Goddard, and J. R. Heath, “Silicon nanowires as efficient thermoelectric materials,” Nature 451(7175), 168–171 (2008).
[CrossRef] [PubMed]

Brittman, S.

S. Brittman, H. Gao, E. C. Garnett, and P. Yang, “Absorption of light in a single-nanowire silicon solar cell decorated with an octahedral silver nanocrystal,” Nano Lett. 11(12), 5189–5195 (2011).
[CrossRef] [PubMed]

Brongersma, M. L.

L. Cao, P. Fan, A. P. Vasudev, J. S. White, Z. Yu, W. Cai, J. A. Schuller, S. Fan, and M. L. Brongersma, “Semiconductor nanowire optical antenna solar absorbers,” Nano Lett. 10(2), 439–445 (2010).
[CrossRef] [PubMed]

L. Cao, J. S. White, J.-S. Park, J. A. Schuller, B. M. Clemens, and M. L. Brongersma, “Engineering light absorption in semiconductor nanowire devices,” Nat. Mater. 8(8), 643–647 (2009).
[CrossRef] [PubMed]

Bunimovich, Y.

A. I. Boukai, Y. Bunimovich, J. Tahir-Kheli, J.-K. Yu, W. A. Goddard, and J. R. Heath, “Silicon nanowires as efficient thermoelectric materials,” Nature 451(7175), 168–171 (2008).
[CrossRef] [PubMed]

Cai, W.

L. Cao, P. Fan, A. P. Vasudev, J. S. White, Z. Yu, W. Cai, J. A. Schuller, S. Fan, and M. L. Brongersma, “Semiconductor nanowire optical antenna solar absorbers,” Nano Lett. 10(2), 439–445 (2010).
[CrossRef] [PubMed]

Cao, A.

S. Zhang, C. Ji, Z. Bian, R. Liu, X. Xia, D. Yun, L. Zhang, C. Huang, and A. Cao, “Single-wire dye-sensitized solar cells wrapped by carbon nanotube film electrodes,” Nano Lett. 11(8), 3383–3387 (2011).
[CrossRef] [PubMed]

Cao, L.

L. Cao, P. Fan, A. P. Vasudev, J. S. White, Z. Yu, W. Cai, J. A. Schuller, S. Fan, and M. L. Brongersma, “Semiconductor nanowire optical antenna solar absorbers,” Nano Lett. 10(2), 439–445 (2010).
[CrossRef] [PubMed]

L. Cao, J. S. White, J.-S. Park, J. A. Schuller, B. M. Clemens, and M. L. Brongersma, “Engineering light absorption in semiconductor nanowire devices,” Nat. Mater. 8(8), 643–647 (2009).
[CrossRef] [PubMed]

Chan, C. K.

C. K. Chan, H. Peng, G. Liu, K. McIlwrath, X. F. Zhang, R. A. Huggins, and Y. Cui, “High-performance lithium battery anodes using silicon nanowires,” Nat. Nanotechnol. 3(1), 31–35 (2008).
[CrossRef] [PubMed]

Chen, R.

A. I. Hochbaum, R. Chen, R. D. Delgado, W. Liang, E. C. Garnett, M. Najarian, A. Majumdar, and P. Yang, “Enhanced thermoelectric performance of rough silicon nanowires,” Nature 451(7175), 163–167 (2008).
[CrossRef] [PubMed]

Clemens, B. M.

L. Cao, J. S. White, J.-S. Park, J. A. Schuller, B. M. Clemens, and M. L. Brongersma, “Engineering light absorption in semiconductor nanowire devices,” Nat. Mater. 8(8), 643–647 (2009).
[CrossRef] [PubMed]

Cohen-Karni, T.

B. Tian, T. Cohen-Karni, Q. Qing, X. Duan, P. Xie, and C. M. Lieber, “Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes,” Science 329(5993), 830–834 (2010).
[CrossRef] [PubMed]

Cui, Y.

C. K. Chan, H. Peng, G. Liu, K. McIlwrath, X. F. Zhang, R. A. Huggins, and Y. Cui, “High-performance lithium battery anodes using silicon nanowires,” Nat. Nanotechnol. 3(1), 31–35 (2008).
[CrossRef] [PubMed]

Delgado, R. D.

A. I. Hochbaum, R. Chen, R. D. Delgado, W. Liang, E. C. Garnett, M. Najarian, A. Majumdar, and P. Yang, “Enhanced thermoelectric performance of rough silicon nanowires,” Nature 451(7175), 163–167 (2008).
[CrossRef] [PubMed]

Deppert, K.

J. Wallentin, J. M. Persson, J. B. Wagner, L. Samuelson, K. Deppert, and M. T. Borgström, “High-performance single nanowire tunnel diodes,” Nano Lett. 10(3), 974–979 (2010).
[CrossRef] [PubMed]

Dong, Y.

Y. Dong, B. Tian, T. J. Kempa, and C. M. Lieber, “Coaxial group III-nitride nanowire photovoltaics,” Nano Lett. 9(5), 2183–2187 (2009).
[CrossRef] [PubMed]

Duan, X.

B. Tian, T. Cohen-Karni, Q. Qing, X. Duan, P. Xie, and C. M. Lieber, “Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes,” Science 329(5993), 830–834 (2010).
[CrossRef] [PubMed]

Eichfeld, S. M.

Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
[CrossRef] [PubMed]

Fan, P.

L. Cao, P. Fan, A. P. Vasudev, J. S. White, Z. Yu, W. Cai, J. A. Schuller, S. Fan, and M. L. Brongersma, “Semiconductor nanowire optical antenna solar absorbers,” Nano Lett. 10(2), 439–445 (2010).
[CrossRef] [PubMed]

Fan, S.

L. Cao, P. Fan, A. P. Vasudev, J. S. White, Z. Yu, W. Cai, J. A. Schuller, S. Fan, and M. L. Brongersma, “Semiconductor nanowire optical antenna solar absorbers,” Nano Lett. 10(2), 439–445 (2010).
[CrossRef] [PubMed]

Fang, Y.

B. Tian, X. Zheng, T. J. Kempa, Y. Fang, N. Yu, G. Yu, J. Huang, and C. M. Lieber, “Coaxial silicon nanowires as solar cells and nanoelectronic power sources,” Nature 449(7164), 885–889 (2007).
[CrossRef] [PubMed]

Fronheiser, J.

L. Tsakalakos, J. Balch, J. Fronheiser, B. A. Korevaar, O. Sulima, and J. Rand, “Silicon nanowire solar cells,” Appl. Phys. Lett. 91(23), 233117 (2007).
[CrossRef]

Gao, H.

S. Brittman, H. Gao, E. C. Garnett, and P. Yang, “Absorption of light in a single-nanowire silicon solar cell decorated with an octahedral silver nanocrystal,” Nano Lett. 11(12), 5189–5195 (2011).
[CrossRef] [PubMed]

Gargas, D.

R. Yan, D. Gargas, and P. Yang, “Nanowire photonics,” Nat. Photonics 3(10), 569–576 (2009).
[CrossRef]

Garnett, E.

E. Garnett and P. Yang, “Light trapping in silicon nanowire solar cells,” Nano Lett. 10(3), 1082–1087 (2010).
[CrossRef] [PubMed]

Garnett, E. C.

S. Brittman, H. Gao, E. C. Garnett, and P. Yang, “Absorption of light in a single-nanowire silicon solar cell decorated with an octahedral silver nanocrystal,” Nano Lett. 11(12), 5189–5195 (2011).
[CrossRef] [PubMed]

A. I. Hochbaum, R. Chen, R. D. Delgado, W. Liang, E. C. Garnett, M. Najarian, A. Majumdar, and P. Yang, “Enhanced thermoelectric performance of rough silicon nanowires,” Nature 451(7175), 163–167 (2008).
[CrossRef] [PubMed]

Goddard, W. A.

A. I. Boukai, Y. Bunimovich, J. Tahir-Kheli, J.-K. Yu, W. A. Goddard, and J. R. Heath, “Silicon nanowires as efficient thermoelectric materials,” Nature 451(7175), 168–171 (2008).
[CrossRef] [PubMed]

Habib, Y. M.

Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
[CrossRef] [PubMed]

Hayden, O.

O. Hayden, R. Agarwal, and C. M. Lieber, “Nanoscale avalanche photodiodes for highly sensitive and spatially resolved photon detection,” Nat. Mater. 5(5), 352–356 (2006).
[CrossRef] [PubMed]

Heath, J. R.

A. I. Boukai, Y. Bunimovich, J. Tahir-Kheli, J.-K. Yu, W. A. Goddard, and J. R. Heath, “Silicon nanowires as efficient thermoelectric materials,” Nature 451(7175), 168–171 (2008).
[CrossRef] [PubMed]

Hochbaum, A. I.

A. I. Hochbaum, R. Chen, R. D. Delgado, W. Liang, E. C. Garnett, M. Najarian, A. Majumdar, and P. Yang, “Enhanced thermoelectric performance of rough silicon nanowires,” Nature 451(7175), 163–167 (2008).
[CrossRef] [PubMed]

Hu, J.

T. J. Kempa, B. Tian, D. R. Kim, J. Hu, X. Zheng, and C. M. Lieber, “Single and tandem axial p-i-n nanowire photovoltaic devices,” Nano Lett. 8(10), 3456–3460 (2008).
[CrossRef] [PubMed]

Huang, C.

S. Zhang, C. Ji, Z. Bian, R. Liu, X. Xia, D. Yun, L. Zhang, C. Huang, and A. Cao, “Single-wire dye-sensitized solar cells wrapped by carbon nanotube film electrodes,” Nano Lett. 11(8), 3383–3387 (2011).
[CrossRef] [PubMed]

Huang, J.

B. Tian, X. Zheng, T. J. Kempa, Y. Fang, N. Yu, G. Yu, J. Huang, and C. M. Lieber, “Coaxial silicon nanowires as solar cells and nanoelectronic power sources,” Nature 449(7164), 885–889 (2007).
[CrossRef] [PubMed]

Huggins, R. A.

C. K. Chan, H. Peng, G. Liu, K. McIlwrath, X. F. Zhang, R. A. Huggins, and Y. Cui, “High-performance lithium battery anodes using silicon nanowires,” Nat. Nanotechnol. 3(1), 31–35 (2008).
[CrossRef] [PubMed]

Ji, C.

S. Zhang, C. Ji, Z. Bian, R. Liu, X. Xia, D. Yun, L. Zhang, C. Huang, and A. Cao, “Single-wire dye-sensitized solar cells wrapped by carbon nanotube film electrodes,” Nano Lett. 11(8), 3383–3387 (2011).
[CrossRef] [PubMed]

Karim, K. S.

M. M. Adachi, M. P. Anantram, and K. S. Karim, “Optical properties of crystalline-amorphous core-shell silicon nanowires,” Nano Lett. 10(10), 4093–4098 (2010).
[CrossRef] [PubMed]

Kasemo, B.

C. Langhammer, B. Kasemo, and I. Zorić, “Absorption and scattering of light by Pt, Pd, Ag, and Au nanodisks: absolute cross sections and branching ratios,” J. Chem. Phys. 126(19), 194702 (2007).
[CrossRef] [PubMed]

Ke, Y.

Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
[CrossRef] [PubMed]

Kempa, T. J.

Y. Dong, B. Tian, T. J. Kempa, and C. M. Lieber, “Coaxial group III-nitride nanowire photovoltaics,” Nano Lett. 9(5), 2183–2187 (2009).
[CrossRef] [PubMed]

T. J. Kempa, B. Tian, D. R. Kim, J. Hu, X. Zheng, and C. M. Lieber, “Single and tandem axial p-i-n nanowire photovoltaic devices,” Nano Lett. 8(10), 3456–3460 (2008).
[CrossRef] [PubMed]

B. Tian, X. Zheng, T. J. Kempa, Y. Fang, N. Yu, G. Yu, J. Huang, and C. M. Lieber, “Coaxial silicon nanowires as solar cells and nanoelectronic power sources,” Nature 449(7164), 885–889 (2007).
[CrossRef] [PubMed]

Kendrick, C. E.

Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
[CrossRef] [PubMed]

Kim, D. R.

T. J. Kempa, B. Tian, D. R. Kim, J. Hu, X. Zheng, and C. M. Lieber, “Single and tandem axial p-i-n nanowire photovoltaic devices,” Nano Lett. 8(10), 3456–3460 (2008).
[CrossRef] [PubMed]

Korevaar, B. A.

L. Tsakalakos, J. Balch, J. Fronheiser, B. A. Korevaar, O. Sulima, and J. Rand, “Silicon nanowire solar cells,” Appl. Phys. Lett. 91(23), 233117 (2007).
[CrossRef]

Kupec, J.

Langhammer, C.

C. Langhammer, B. Kasemo, and I. Zorić, “Absorption and scattering of light by Pt, Pd, Ag, and Au nanodisks: absolute cross sections and branching ratios,” J. Chem. Phys. 126(19), 194702 (2007).
[CrossRef] [PubMed]

Li, J.-J.

J. Zhu, S.- Shu-min Zhao, J.-W. Zhao, and J.-J. Li, “Dielectric wall controlled resonance light scattering of coated Long gold nanowire,” Curr. Nanosci. 7(3), 377–380 (2011).
[CrossRef]

Liang, W.

A. I. Hochbaum, R. Chen, R. D. Delgado, W. Liang, E. C. Garnett, M. Najarian, A. Majumdar, and P. Yang, “Enhanced thermoelectric performance of rough silicon nanowires,” Nature 451(7175), 163–167 (2008).
[CrossRef] [PubMed]

Lieber, C. M.

B. Tian, T. Cohen-Karni, Q. Qing, X. Duan, P. Xie, and C. M. Lieber, “Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes,” Science 329(5993), 830–834 (2010).
[CrossRef] [PubMed]

Y. Dong, B. Tian, T. J. Kempa, and C. M. Lieber, “Coaxial group III-nitride nanowire photovoltaics,” Nano Lett. 9(5), 2183–2187 (2009).
[CrossRef] [PubMed]

T. J. Kempa, B. Tian, D. R. Kim, J. Hu, X. Zheng, and C. M. Lieber, “Single and tandem axial p-i-n nanowire photovoltaic devices,” Nano Lett. 8(10), 3456–3460 (2008).
[CrossRef] [PubMed]

B. Tian, X. Zheng, T. J. Kempa, Y. Fang, N. Yu, G. Yu, J. Huang, and C. M. Lieber, “Coaxial silicon nanowires as solar cells and nanoelectronic power sources,” Nature 449(7164), 885–889 (2007).
[CrossRef] [PubMed]

O. Hayden, R. Agarwal, and C. M. Lieber, “Nanoscale avalanche photodiodes for highly sensitive and spatially resolved photon detection,” Nat. Mater. 5(5), 352–356 (2006).
[CrossRef] [PubMed]

Liu, G.

C. K. Chan, H. Peng, G. Liu, K. McIlwrath, X. F. Zhang, R. A. Huggins, and Y. Cui, “High-performance lithium battery anodes using silicon nanowires,” Nat. Nanotechnol. 3(1), 31–35 (2008).
[CrossRef] [PubMed]

Liu, R.

S. Zhang, C. Ji, Z. Bian, R. Liu, X. Xia, D. Yun, L. Zhang, C. Huang, and A. Cao, “Single-wire dye-sensitized solar cells wrapped by carbon nanotube film electrodes,” Nano Lett. 11(8), 3383–3387 (2011).
[CrossRef] [PubMed]

Lu, Y.

Y. Yin, Y. Lu, Y. Sun, and Y. Xia, “Silver nanowires can be directly coated with amorphous silica to generate well-controlled coaxial nanocables of silver/silica,” Nano Lett. 2(4), 427–430 (2002).
[CrossRef]

Majumdar, A.

A. I. Hochbaum, R. Chen, R. D. Delgado, W. Liang, E. C. Garnett, M. Najarian, A. Majumdar, and P. Yang, “Enhanced thermoelectric performance of rough silicon nanowires,” Nature 451(7175), 163–167 (2008).
[CrossRef] [PubMed]

Mayer, T. S.

Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
[CrossRef] [PubMed]

McIlwrath, K.

C. K. Chan, H. Peng, G. Liu, K. McIlwrath, X. F. Zhang, R. A. Huggins, and Y. Cui, “High-performance lithium battery anodes using silicon nanowires,” Nat. Nanotechnol. 3(1), 31–35 (2008).
[CrossRef] [PubMed]

Najarian, M.

A. I. Hochbaum, R. Chen, R. D. Delgado, W. Liang, E. C. Garnett, M. Najarian, A. Majumdar, and P. Yang, “Enhanced thermoelectric performance of rough silicon nanowires,” Nature 451(7175), 163–167 (2008).
[CrossRef] [PubMed]

Park, J.-S.

L. Cao, J. S. White, J.-S. Park, J. A. Schuller, B. M. Clemens, and M. L. Brongersma, “Engineering light absorption in semiconductor nanowire devices,” Nat. Mater. 8(8), 643–647 (2009).
[CrossRef] [PubMed]

Peng, H.

C. K. Chan, H. Peng, G. Liu, K. McIlwrath, X. F. Zhang, R. A. Huggins, and Y. Cui, “High-performance lithium battery anodes using silicon nanowires,” Nat. Nanotechnol. 3(1), 31–35 (2008).
[CrossRef] [PubMed]

Persson, J. M.

J. Wallentin, J. M. Persson, J. B. Wagner, L. Samuelson, K. Deppert, and M. T. Borgström, “High-performance single nanowire tunnel diodes,” Nano Lett. 10(3), 974–979 (2010).
[CrossRef] [PubMed]

Polman, A.

H. A. Atwater and A. Polman, “Plasmonics for improved photovoltaic devices,” Nat. Mater. 9(3), 205–213 (2010).
[CrossRef] [PubMed]

Qing, Q.

B. Tian, T. Cohen-Karni, Q. Qing, X. Duan, P. Xie, and C. M. Lieber, “Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes,” Science 329(5993), 830–834 (2010).
[CrossRef] [PubMed]

Rand, J.

L. Tsakalakos, J. Balch, J. Fronheiser, B. A. Korevaar, O. Sulima, and J. Rand, “Silicon nanowire solar cells,” Appl. Phys. Lett. 91(23), 233117 (2007).
[CrossRef]

Redwing, J. M.

Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
[CrossRef] [PubMed]

Samuelson, L.

J. Wallentin, J. M. Persson, J. B. Wagner, L. Samuelson, K. Deppert, and M. T. Borgström, “High-performance single nanowire tunnel diodes,” Nano Lett. 10(3), 974–979 (2010).
[CrossRef] [PubMed]

Schuller, J. A.

L. Cao, P. Fan, A. P. Vasudev, J. S. White, Z. Yu, W. Cai, J. A. Schuller, S. Fan, and M. L. Brongersma, “Semiconductor nanowire optical antenna solar absorbers,” Nano Lett. 10(2), 439–445 (2010).
[CrossRef] [PubMed]

L. Cao, J. S. White, J.-S. Park, J. A. Schuller, B. M. Clemens, and M. L. Brongersma, “Engineering light absorption in semiconductor nanowire devices,” Nat. Mater. 8(8), 643–647 (2009).
[CrossRef] [PubMed]

Shu-min Zhao, S.-

J. Zhu, S.- Shu-min Zhao, J.-W. Zhao, and J.-J. Li, “Dielectric wall controlled resonance light scattering of coated Long gold nanowire,” Curr. Nanosci. 7(3), 377–380 (2011).
[CrossRef]

Sulima, O.

L. Tsakalakos, J. Balch, J. Fronheiser, B. A. Korevaar, O. Sulima, and J. Rand, “Silicon nanowire solar cells,” Appl. Phys. Lett. 91(23), 233117 (2007).
[CrossRef]

Sun, W.

Sun, Y.

Y. Yin, Y. Lu, Y. Sun, and Y. Xia, “Silver nanowires can be directly coated with amorphous silica to generate well-controlled coaxial nanocables of silver/silica,” Nano Lett. 2(4), 427–430 (2002).
[CrossRef]

Tahir-Kheli, J.

A. I. Boukai, Y. Bunimovich, J. Tahir-Kheli, J.-K. Yu, W. A. Goddard, and J. R. Heath, “Silicon nanowires as efficient thermoelectric materials,” Nature 451(7175), 168–171 (2008).
[CrossRef] [PubMed]

Tian, B.

B. Tian, T. Cohen-Karni, Q. Qing, X. Duan, P. Xie, and C. M. Lieber, “Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes,” Science 329(5993), 830–834 (2010).
[CrossRef] [PubMed]

Y. Dong, B. Tian, T. J. Kempa, and C. M. Lieber, “Coaxial group III-nitride nanowire photovoltaics,” Nano Lett. 9(5), 2183–2187 (2009).
[CrossRef] [PubMed]

T. J. Kempa, B. Tian, D. R. Kim, J. Hu, X. Zheng, and C. M. Lieber, “Single and tandem axial p-i-n nanowire photovoltaic devices,” Nano Lett. 8(10), 3456–3460 (2008).
[CrossRef] [PubMed]

B. Tian, X. Zheng, T. J. Kempa, Y. Fang, N. Yu, G. Yu, J. Huang, and C. M. Lieber, “Coaxial silicon nanowires as solar cells and nanoelectronic power sources,” Nature 449(7164), 885–889 (2007).
[CrossRef] [PubMed]

Tsakalakos, L.

L. Tsakalakos, J. Balch, J. Fronheiser, B. A. Korevaar, O. Sulima, and J. Rand, “Silicon nanowire solar cells,” Appl. Phys. Lett. 91(23), 233117 (2007).
[CrossRef]

Vasudev, A. P.

L. Cao, P. Fan, A. P. Vasudev, J. S. White, Z. Yu, W. Cai, J. A. Schuller, S. Fan, and M. L. Brongersma, “Semiconductor nanowire optical antenna solar absorbers,” Nano Lett. 10(2), 439–445 (2010).
[CrossRef] [PubMed]

Videen, G.

Wagner, J. B.

J. Wallentin, J. M. Persson, J. B. Wagner, L. Samuelson, K. Deppert, and M. T. Borgström, “High-performance single nanowire tunnel diodes,” Nano Lett. 10(3), 974–979 (2010).
[CrossRef] [PubMed]

Wallentin, J.

J. Wallentin, J. M. Persson, J. B. Wagner, L. Samuelson, K. Deppert, and M. T. Borgström, “High-performance single nanowire tunnel diodes,” Nano Lett. 10(3), 974–979 (2010).
[CrossRef] [PubMed]

Wang, X.

Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
[CrossRef] [PubMed]

Weng, X. J.

Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
[CrossRef] [PubMed]

White, J. S.

L. Cao, P. Fan, A. P. Vasudev, J. S. White, Z. Yu, W. Cai, J. A. Schuller, S. Fan, and M. L. Brongersma, “Semiconductor nanowire optical antenna solar absorbers,” Nano Lett. 10(2), 439–445 (2010).
[CrossRef] [PubMed]

L. Cao, J. S. White, J.-S. Park, J. A. Schuller, B. M. Clemens, and M. L. Brongersma, “Engineering light absorption in semiconductor nanowire devices,” Nat. Mater. 8(8), 643–647 (2009).
[CrossRef] [PubMed]

Witzigmann, B.

Xia, X.

S. Zhang, C. Ji, Z. Bian, R. Liu, X. Xia, D. Yun, L. Zhang, C. Huang, and A. Cao, “Single-wire dye-sensitized solar cells wrapped by carbon nanotube film electrodes,” Nano Lett. 11(8), 3383–3387 (2011).
[CrossRef] [PubMed]

Xia, Y.

Y. Yin, Y. Lu, Y. Sun, and Y. Xia, “Silver nanowires can be directly coated with amorphous silica to generate well-controlled coaxial nanocables of silver/silica,” Nano Lett. 2(4), 427–430 (2002).
[CrossRef]

Xie, P.

B. Tian, T. Cohen-Karni, Q. Qing, X. Duan, P. Xie, and C. M. Lieber, “Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes,” Science 329(5993), 830–834 (2010).
[CrossRef] [PubMed]

Yan, R.

R. Yan, D. Gargas, and P. Yang, “Nanowire photonics,” Nat. Photonics 3(10), 569–576 (2009).
[CrossRef]

Yang, P.

S. Brittman, H. Gao, E. C. Garnett, and P. Yang, “Absorption of light in a single-nanowire silicon solar cell decorated with an octahedral silver nanocrystal,” Nano Lett. 11(12), 5189–5195 (2011).
[CrossRef] [PubMed]

E. Garnett and P. Yang, “Light trapping in silicon nanowire solar cells,” Nano Lett. 10(3), 1082–1087 (2010).
[CrossRef] [PubMed]

R. Yan, D. Gargas, and P. Yang, “Nanowire photonics,” Nat. Photonics 3(10), 569–576 (2009).
[CrossRef]

A. I. Hochbaum, R. Chen, R. D. Delgado, W. Liang, E. C. Garnett, M. Najarian, A. Majumdar, and P. Yang, “Enhanced thermoelectric performance of rough silicon nanowires,” Nature 451(7175), 163–167 (2008).
[CrossRef] [PubMed]

Yin, Y.

Y. Yin, Y. Lu, Y. Sun, and Y. Xia, “Silver nanowires can be directly coated with amorphous silica to generate well-controlled coaxial nanocables of silver/silica,” Nano Lett. 2(4), 427–430 (2002).
[CrossRef]

Yoon, H. P.

Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
[CrossRef] [PubMed]

Yu, G.

B. Tian, X. Zheng, T. J. Kempa, Y. Fang, N. Yu, G. Yu, J. Huang, and C. M. Lieber, “Coaxial silicon nanowires as solar cells and nanoelectronic power sources,” Nature 449(7164), 885–889 (2007).
[CrossRef] [PubMed]

Yu, J.-K.

A. I. Boukai, Y. Bunimovich, J. Tahir-Kheli, J.-K. Yu, W. A. Goddard, and J. R. Heath, “Silicon nanowires as efficient thermoelectric materials,” Nature 451(7175), 168–171 (2008).
[CrossRef] [PubMed]

Yu, N.

B. Tian, X. Zheng, T. J. Kempa, Y. Fang, N. Yu, G. Yu, J. Huang, and C. M. Lieber, “Coaxial silicon nanowires as solar cells and nanoelectronic power sources,” Nature 449(7164), 885–889 (2007).
[CrossRef] [PubMed]

Yu, Y. A.

Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
[CrossRef] [PubMed]

Yu, Z.

L. Cao, P. Fan, A. P. Vasudev, J. S. White, Z. Yu, W. Cai, J. A. Schuller, S. Fan, and M. L. Brongersma, “Semiconductor nanowire optical antenna solar absorbers,” Nano Lett. 10(2), 439–445 (2010).
[CrossRef] [PubMed]

Yun, D.

S. Zhang, C. Ji, Z. Bian, R. Liu, X. Xia, D. Yun, L. Zhang, C. Huang, and A. Cao, “Single-wire dye-sensitized solar cells wrapped by carbon nanotube film electrodes,” Nano Lett. 11(8), 3383–3387 (2011).
[CrossRef] [PubMed]

Zhang, L.

S. Zhang, C. Ji, Z. Bian, R. Liu, X. Xia, D. Yun, L. Zhang, C. Huang, and A. Cao, “Single-wire dye-sensitized solar cells wrapped by carbon nanotube film electrodes,” Nano Lett. 11(8), 3383–3387 (2011).
[CrossRef] [PubMed]

Zhang, S.

S. Zhang, C. Ji, Z. Bian, R. Liu, X. Xia, D. Yun, L. Zhang, C. Huang, and A. Cao, “Single-wire dye-sensitized solar cells wrapped by carbon nanotube film electrodes,” Nano Lett. 11(8), 3383–3387 (2011).
[CrossRef] [PubMed]

Zhang, X. F.

C. K. Chan, H. Peng, G. Liu, K. McIlwrath, X. F. Zhang, R. A. Huggins, and Y. Cui, “High-performance lithium battery anodes using silicon nanowires,” Nat. Nanotechnol. 3(1), 31–35 (2008).
[CrossRef] [PubMed]

Zhao, J.-W.

J. Zhu, S.- Shu-min Zhao, J.-W. Zhao, and J.-J. Li, “Dielectric wall controlled resonance light scattering of coated Long gold nanowire,” Curr. Nanosci. 7(3), 377–380 (2011).
[CrossRef]

Zheng, X.

T. J. Kempa, B. Tian, D. R. Kim, J. Hu, X. Zheng, and C. M. Lieber, “Single and tandem axial p-i-n nanowire photovoltaic devices,” Nano Lett. 8(10), 3456–3460 (2008).
[CrossRef] [PubMed]

B. Tian, X. Zheng, T. J. Kempa, Y. Fang, N. Yu, G. Yu, J. Huang, and C. M. Lieber, “Coaxial silicon nanowires as solar cells and nanoelectronic power sources,” Nature 449(7164), 885–889 (2007).
[CrossRef] [PubMed]

Zhu, J.

J. Zhu, S.- Shu-min Zhao, J.-W. Zhao, and J.-J. Li, “Dielectric wall controlled resonance light scattering of coated Long gold nanowire,” Curr. Nanosci. 7(3), 377–380 (2011).
[CrossRef]

Zoric, I.

C. Langhammer, B. Kasemo, and I. Zorić, “Absorption and scattering of light by Pt, Pd, Ag, and Au nanodisks: absolute cross sections and branching ratios,” J. Chem. Phys. 126(19), 194702 (2007).
[CrossRef] [PubMed]

Appl. Opt. (1)

Appl. Phys. Lett. (1)

L. Tsakalakos, J. Balch, J. Fronheiser, B. A. Korevaar, O. Sulima, and J. Rand, “Silicon nanowire solar cells,” Appl. Phys. Lett. 91(23), 233117 (2007).
[CrossRef]

Curr. Nanosci. (1)

J. Zhu, S.- Shu-min Zhao, J.-W. Zhao, and J.-J. Li, “Dielectric wall controlled resonance light scattering of coated Long gold nanowire,” Curr. Nanosci. 7(3), 377–380 (2011).
[CrossRef]

J. Chem. Phys. (1)

C. Langhammer, B. Kasemo, and I. Zorić, “Absorption and scattering of light by Pt, Pd, Ag, and Au nanodisks: absolute cross sections and branching ratios,” J. Chem. Phys. 126(19), 194702 (2007).
[CrossRef] [PubMed]

Nano Lett. (9)

S. Brittman, H. Gao, E. C. Garnett, and P. Yang, “Absorption of light in a single-nanowire silicon solar cell decorated with an octahedral silver nanocrystal,” Nano Lett. 11(12), 5189–5195 (2011).
[CrossRef] [PubMed]

Y. Yin, Y. Lu, Y. Sun, and Y. Xia, “Silver nanowires can be directly coated with amorphous silica to generate well-controlled coaxial nanocables of silver/silica,” Nano Lett. 2(4), 427–430 (2002).
[CrossRef]

S. Zhang, C. Ji, Z. Bian, R. Liu, X. Xia, D. Yun, L. Zhang, C. Huang, and A. Cao, “Single-wire dye-sensitized solar cells wrapped by carbon nanotube film electrodes,” Nano Lett. 11(8), 3383–3387 (2011).
[CrossRef] [PubMed]

E. Garnett and P. Yang, “Light trapping in silicon nanowire solar cells,” Nano Lett. 10(3), 1082–1087 (2010).
[CrossRef] [PubMed]

L. Cao, P. Fan, A. P. Vasudev, J. S. White, Z. Yu, W. Cai, J. A. Schuller, S. Fan, and M. L. Brongersma, “Semiconductor nanowire optical antenna solar absorbers,” Nano Lett. 10(2), 439–445 (2010).
[CrossRef] [PubMed]

J. Wallentin, J. M. Persson, J. B. Wagner, L. Samuelson, K. Deppert, and M. T. Borgström, “High-performance single nanowire tunnel diodes,” Nano Lett. 10(3), 974–979 (2010).
[CrossRef] [PubMed]

M. M. Adachi, M. P. Anantram, and K. S. Karim, “Optical properties of crystalline-amorphous core-shell silicon nanowires,” Nano Lett. 10(10), 4093–4098 (2010).
[CrossRef] [PubMed]

T. J. Kempa, B. Tian, D. R. Kim, J. Hu, X. Zheng, and C. M. Lieber, “Single and tandem axial p-i-n nanowire photovoltaic devices,” Nano Lett. 8(10), 3456–3460 (2008).
[CrossRef] [PubMed]

Y. Dong, B. Tian, T. J. Kempa, and C. M. Lieber, “Coaxial group III-nitride nanowire photovoltaics,” Nano Lett. 9(5), 2183–2187 (2009).
[CrossRef] [PubMed]

Nanotechnology (1)

Y. Ke, X. Wang, X. J. Weng, C. E. Kendrick, Y. A. Yu, S. M. Eichfeld, H. P. Yoon, J. M. Redwing, T. S. Mayer, and Y. M. Habib, “Single wire radial junction photovoltaic devices fabricated using aluminum catalyzed silicon nanowires,” Nanotechnology 22(44), 445401 (2011).
[CrossRef] [PubMed]

Nat. Mater. (3)

H. A. Atwater and A. Polman, “Plasmonics for improved photovoltaic devices,” Nat. Mater. 9(3), 205–213 (2010).
[CrossRef] [PubMed]

L. Cao, J. S. White, J.-S. Park, J. A. Schuller, B. M. Clemens, and M. L. Brongersma, “Engineering light absorption in semiconductor nanowire devices,” Nat. Mater. 8(8), 643–647 (2009).
[CrossRef] [PubMed]

O. Hayden, R. Agarwal, and C. M. Lieber, “Nanoscale avalanche photodiodes for highly sensitive and spatially resolved photon detection,” Nat. Mater. 5(5), 352–356 (2006).
[CrossRef] [PubMed]

Nat. Nanotechnol. (1)

C. K. Chan, H. Peng, G. Liu, K. McIlwrath, X. F. Zhang, R. A. Huggins, and Y. Cui, “High-performance lithium battery anodes using silicon nanowires,” Nat. Nanotechnol. 3(1), 31–35 (2008).
[CrossRef] [PubMed]

Nat. Photonics (1)

R. Yan, D. Gargas, and P. Yang, “Nanowire photonics,” Nat. Photonics 3(10), 569–576 (2009).
[CrossRef]

Nature (3)

B. Tian, X. Zheng, T. J. Kempa, Y. Fang, N. Yu, G. Yu, J. Huang, and C. M. Lieber, “Coaxial silicon nanowires as solar cells and nanoelectronic power sources,” Nature 449(7164), 885–889 (2007).
[CrossRef] [PubMed]

A. I. Boukai, Y. Bunimovich, J. Tahir-Kheli, J.-K. Yu, W. A. Goddard, and J. R. Heath, “Silicon nanowires as efficient thermoelectric materials,” Nature 451(7175), 168–171 (2008).
[CrossRef] [PubMed]

A. I. Hochbaum, R. Chen, R. D. Delgado, W. Liang, E. C. Garnett, M. Najarian, A. Majumdar, and P. Yang, “Enhanced thermoelectric performance of rough silicon nanowires,” Nature 451(7175), 163–167 (2008).
[CrossRef] [PubMed]

Opt. Express (1)

Science (1)

B. Tian, T. Cohen-Karni, Q. Qing, X. Duan, P. Xie, and C. M. Lieber, “Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes,” Science 329(5993), 830–834 (2010).
[CrossRef] [PubMed]

Other (3)

E. D. Palik, Handbook of optical constants of solids (Academic Press, 1985).

C. F. Bohren and D. R. Huffman, Absorption and scattering of light by small particles (Wiley, 1983).

ASTM, “Reference solar spectral irradiance: AM 1.5 Spectra,” http://rredc.nreal.gov/solar/spectra/am1.5 .

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Figures (9)

Fig. 1
Fig. 1

Schematic diagram of the simulation model.

Fig. 2
Fig. 2

(a) Comparison of absorption efficiency, Qabs, between the SNSCs with (w) and without (w/o) silver core. The radius of SNSCs, R, is 150 nm and the inner core, r, is 50 nm. (b) Normalized absorption profiles in the SNSCs with and without silver core for s-polarized (upper) and p-polarized (lower) illumination. The profiles in column I, II and III are corresponding to the wavelength of 450 nm, 550 nm, and 668 nm respectively.

Fig. 3
Fig. 3

Contour map of Qabs enhancement in SNSCs as a function of illumination wavelength and core radius for (a) s-polarized and (b) p-polarized. (c) The short-circuit current enhancement as a function of radius. The radius of α-Si SNSCs, R, is fixed at 150 nm.

Fig. 4
Fig. 4

Normalized scattering absorption Cscat as a function of illumination wavelength and the ratio of r/R. The radius of α-Si SNSCs, R, is fixed at 150 nm.

Fig. 5
Fig. 5

Contour maps of Qabs in the SNSCs (a) without and (b) with silver core versus the wavelength and radius of SNSCs, R. The absorption efficiency in the SNSCs (c) without and (d) with silver core as a function of radius of SNSCs, R. The core radius, r, is 55 nm and the incident plane wave is considered as p-polarized light. Insets: H-field distribution in SNSCs. The color of Insets is not in scale, which is just to show the steady mode.

Fig. 6
Fig. 6

Contour maps of Qabs in the SNSCs (a) without and (b) with silver core versus the wavelength and radius of SNSCs, R. The absorption efficiency in the SNSCs (c) without and (d) with silver core as a function of radius of SNSCs, R. The core radius, r, is 55 nm and the incident plane wave is considered as s-polarized light. Insets: E-field distribution in SNSCs.

Fig. 7
Fig. 7

The short-circuit current enhancement as a function of radius of SNSC, R. The core radius, r, is fixed at 55 nm.

Fig. 8
Fig. 8

Surface and contour plot of current enhancement versus filling ratio and radius of nanowire under illumination of (a) s-polarized, (b) p-polarized and (c) non-polarized light.

Fig. 9
Fig. 9

Maximum of Jsc enhancement (square points in blue) and its optimum filling-ratio (circle points in red) as a function of radius of SNSCs. The light green line is the linear fitting for the relationship between ηopt and R.

Equations (6)

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×( μ r -1 × E scat )( ε r j σ ω ε 0 k 0 2 E scat )=0.
J sc = 400nm 800nm eλ hc Q abs (λ) Φ AM1.5 (λ)dλ.
C scat = (2π) 4 6π ε 0 2 λ 4 |α | 2 = 128 π 5 r 6 3 λ 4 {| ( ε αSi 1)[( ε Ag + ε αSi ) r 2 ( ε Ag + ε αSi ) R 2 ] ( ε Ag ε αSi )( ε αSi 1) r 2 +( ε Ag + ε αSi )( ε αSi +1) R 2 + 2( ε Ag ε αSi ) r 2 R 2 cos2ϕ [( ε Ag ε αSi )( ε αSi 1) r 2 +( ε Ag + ε αSi )( ε αSi +1) R 2 ] r 2 | 2 +| 2( ε Ag ε αSi ) r 2 R 2 sin2ϕ [( ε Ag ε αSi )( ε αSi 1) r 2 +( ε Ag + ε αSi )( ε αSi +1) R 2 ] r 2 | 2 }.
C scat = C scat (λ,β)= 128 π 5 R 6 β 6 3 λ 4 × | ( ε αSi 1)[( ε Ag + ε αSi ) β 2 ( ε Ag + ε αSi )]+2( ε Ag ε αSi ) ( ε Ag ε αSi )( ε αSi 1) β 2 +( ε Ag + ε αSi )( ε αSi +1) | 2 .
η opt = r 2 / R 2 =kR+b.
r= kR+b R.

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