Abstract

We report investigations of CdS–CdSe–CdS (core–well–shell) nanostructures by photoluminescence (PL) spectroscopy at temperatures between 77 and 300 K. PL intensity measurements show a transition from a pump-rate-limited regime at low excitation intensity to the range determined by a spontaneous emission lifetime at a high excitation limit. PL intensity changes as a function of temperature. Also, the temperature dependences of the PL linewidth and PL peak energy are all determined experimentally. The PL linewidth is narrower for thicker quantum wells and becomes broader when the temperature increases owing to longitudinal-optical (LO) phonon scattering. The LO phonon scattering strength is around 30 meV, which is independent of the well thickness, and is much smaller than the value for bulk CdSe.

© 2005 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. V. I Klimov, "Linear and nonlinear optical spectroscopy of semiconductor nanocrystals," in Handbook of Nanostructured Materials and Nanotechnology, H.S.Nalwa, ed. (Academic, San Diego, Calif., 2000), Vol. 4, pp. 451-527.
  2. S. V. Gaponenko, Optical Properties of Semiconductor Nanocrystals (Cambridge U. Press, Cambridge, UK, 1998).
    [CrossRef]
  3. A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
    [CrossRef]
  4. J. J. Li, Y. A. Wang, W. Guo, J. C. Keay, T. D. Mishima, M. B. Johnson, and X. Peng, "Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction," J. Am. Chem. Soc. 125, 12567-12575 (2003).
    [CrossRef] [PubMed]
  5. D. Battaglia, J. J. Li, Y. Wang, and X. Peng, "Colloidal two-dimensional systems: CdSe quantum shells and wells," Angew. Chem., Int. Ed. 42, 5035-5039 (2003).
    [CrossRef]
  6. J. Shi, "Excitons in quantum-dot quantum-well nanoparticles," Chin. Phys. 11, 1286-1293 (2002).
    [CrossRef]
  7. M. Vening, D. J. Dunstan, and K. P. Homewood, "Thermal quenching and retrapping effects in the photoluminescence of InyGa1-y/GaAs/AlxGa1-xAs multiple-quantum-well structures," Phys. Rev. B 48, 2412-2417 (1993).
    [CrossRef]
  8. J. C. Kim, H. Rho, L. M. Smith, H. E. Jackson, S. Lee, M. Dobrowolska, and J. K. Furdyna, "Temperature-dependent micro-photoluminescence of individual CdSe self-assembled quantum dots," Appl. Phys. Lett. 75, 214-216 (1999).
    [CrossRef]
  9. E. Menendez-Proupin and C. Trallero-Giner, "Electric-field and exciton structure in CdSe nanocrystals," Phys. Rev. B 69, 125336 (2004).
    [CrossRef]
  10. R. Heitz, I. Mukhametzhanov, A. Madhukar, A. Hoffmann, and D. Bimberg, "Temperature dependent optical properties of self-organized InAs GaAs quantum dots," J. Electron. Mater. 28, 520-527 (1999).
    [CrossRef]
  11. Y. P. Varshni, "Temperature dependence of energy gap in semiconductors," Physica (Amsterdam) 34, 149 (1967).
    [CrossRef]
  12. C. Vargas-Hernandez, O. De Melo, and I. Hernandez-Carderon, "Photoluminescence study of ultra-thin CdSe quantum wells," Phys. Status Solidi B 230, 331-334 (2002).
    [CrossRef]
  13. H. Zajicek, P. Juza, E. Abramof, O. Pankratov, H. Sitter, M. Helm, G. Brunthaler, and W. Faschinger, "Photoluminescence from ultrathin ZnSe/CdSe quantum wells," Appl. Phys. Lett. 62, 717-719 (1993).
    [CrossRef]
  14. W. Z. Shen, W. G. Tang, S. C. Shen, S. M. Wang, and T. G. Anderson, "Absorption spectroscopy studies of strained InGaAs/GaAs single quantum wells," Appl. Phys. Lett. 65, 2728-2730 (1994).
    [CrossRef]
  15. D. Gammon, S. Rudin, T. L. Reinecke, D. S. Katzer, and C. S. Kyono, "Phonon broadening of excitons in GaAs/AlGaAs quantum wells," Phys. Rev. B 51, 16785-16789 (1995).
    [CrossRef]
  16. P. Borri, W. Langbein, J. M. Hvam, and F. Martelli, "Well-width dependence of exciton-phonon scattering in InxGa1-xAs/GaAs single quantum wells," Phys. Rev. B 59, 2215-2222 (1999).
    [CrossRef]
  17. A. V. Gopal, R. Kumar, A. S. Vengurlekar, A. Bosacchi, S. Franchi, and L. N. Pfeiffer, "Photoluminescence study of exciton-optical phonon scattering in bulk GaAs and GaAs quantum wells," J. Appl. Phys. 87, 1858-1862 (2000).
    [CrossRef]
  18. A. Kaneta and S. Adachi, "Photoreflectance study of hexagonal CdSe," J. Phys. D 32, 2337-2341 (1999).
    [CrossRef]

2004 (1)

E. Menendez-Proupin and C. Trallero-Giner, "Electric-field and exciton structure in CdSe nanocrystals," Phys. Rev. B 69, 125336 (2004).
[CrossRef]

2003 (3)

A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
[CrossRef]

J. J. Li, Y. A. Wang, W. Guo, J. C. Keay, T. D. Mishima, M. B. Johnson, and X. Peng, "Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction," J. Am. Chem. Soc. 125, 12567-12575 (2003).
[CrossRef] [PubMed]

D. Battaglia, J. J. Li, Y. Wang, and X. Peng, "Colloidal two-dimensional systems: CdSe quantum shells and wells," Angew. Chem., Int. Ed. 42, 5035-5039 (2003).
[CrossRef]

2002 (2)

J. Shi, "Excitons in quantum-dot quantum-well nanoparticles," Chin. Phys. 11, 1286-1293 (2002).
[CrossRef]

C. Vargas-Hernandez, O. De Melo, and I. Hernandez-Carderon, "Photoluminescence study of ultra-thin CdSe quantum wells," Phys. Status Solidi B 230, 331-334 (2002).
[CrossRef]

2000 (1)

A. V. Gopal, R. Kumar, A. S. Vengurlekar, A. Bosacchi, S. Franchi, and L. N. Pfeiffer, "Photoluminescence study of exciton-optical phonon scattering in bulk GaAs and GaAs quantum wells," J. Appl. Phys. 87, 1858-1862 (2000).
[CrossRef]

1999 (4)

A. Kaneta and S. Adachi, "Photoreflectance study of hexagonal CdSe," J. Phys. D 32, 2337-2341 (1999).
[CrossRef]

J. C. Kim, H. Rho, L. M. Smith, H. E. Jackson, S. Lee, M. Dobrowolska, and J. K. Furdyna, "Temperature-dependent micro-photoluminescence of individual CdSe self-assembled quantum dots," Appl. Phys. Lett. 75, 214-216 (1999).
[CrossRef]

P. Borri, W. Langbein, J. M. Hvam, and F. Martelli, "Well-width dependence of exciton-phonon scattering in InxGa1-xAs/GaAs single quantum wells," Phys. Rev. B 59, 2215-2222 (1999).
[CrossRef]

R. Heitz, I. Mukhametzhanov, A. Madhukar, A. Hoffmann, and D. Bimberg, "Temperature dependent optical properties of self-organized InAs GaAs quantum dots," J. Electron. Mater. 28, 520-527 (1999).
[CrossRef]

1995 (1)

D. Gammon, S. Rudin, T. L. Reinecke, D. S. Katzer, and C. S. Kyono, "Phonon broadening of excitons in GaAs/AlGaAs quantum wells," Phys. Rev. B 51, 16785-16789 (1995).
[CrossRef]

1994 (1)

W. Z. Shen, W. G. Tang, S. C. Shen, S. M. Wang, and T. G. Anderson, "Absorption spectroscopy studies of strained InGaAs/GaAs single quantum wells," Appl. Phys. Lett. 65, 2728-2730 (1994).
[CrossRef]

1993 (2)

H. Zajicek, P. Juza, E. Abramof, O. Pankratov, H. Sitter, M. Helm, G. Brunthaler, and W. Faschinger, "Photoluminescence from ultrathin ZnSe/CdSe quantum wells," Appl. Phys. Lett. 62, 717-719 (1993).
[CrossRef]

M. Vening, D. J. Dunstan, and K. P. Homewood, "Thermal quenching and retrapping effects in the photoluminescence of InyGa1-y/GaAs/AlxGa1-xAs multiple-quantum-well structures," Phys. Rev. B 48, 2412-2417 (1993).
[CrossRef]

1967 (1)

Y. P. Varshni, "Temperature dependence of energy gap in semiconductors," Physica (Amsterdam) 34, 149 (1967).
[CrossRef]

Abramof, E.

H. Zajicek, P. Juza, E. Abramof, O. Pankratov, H. Sitter, M. Helm, G. Brunthaler, and W. Faschinger, "Photoluminescence from ultrathin ZnSe/CdSe quantum wells," Appl. Phys. Lett. 62, 717-719 (1993).
[CrossRef]

Adachi, S.

A. Kaneta and S. Adachi, "Photoreflectance study of hexagonal CdSe," J. Phys. D 32, 2337-2341 (1999).
[CrossRef]

Anderson, T. G.

W. Z. Shen, W. G. Tang, S. C. Shen, S. M. Wang, and T. G. Anderson, "Absorption spectroscopy studies of strained InGaAs/GaAs single quantum wells," Appl. Phys. Lett. 65, 2728-2730 (1994).
[CrossRef]

Baranov, A. V.

A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
[CrossRef]

Battaglia, D.

D. Battaglia, J. J. Li, Y. Wang, and X. Peng, "Colloidal two-dimensional systems: CdSe quantum shells and wells," Angew. Chem., Int. Ed. 42, 5035-5039 (2003).
[CrossRef]

Bimberg, D.

R. Heitz, I. Mukhametzhanov, A. Madhukar, A. Hoffmann, and D. Bimberg, "Temperature dependent optical properties of self-organized InAs GaAs quantum dots," J. Electron. Mater. 28, 520-527 (1999).
[CrossRef]

Borri, P.

P. Borri, W. Langbein, J. M. Hvam, and F. Martelli, "Well-width dependence of exciton-phonon scattering in InxGa1-xAs/GaAs single quantum wells," Phys. Rev. B 59, 2215-2222 (1999).
[CrossRef]

Bosacchi, A.

A. V. Gopal, R. Kumar, A. S. Vengurlekar, A. Bosacchi, S. Franchi, and L. N. Pfeiffer, "Photoluminescence study of exciton-optical phonon scattering in bulk GaAs and GaAs quantum wells," J. Appl. Phys. 87, 1858-1862 (2000).
[CrossRef]

Brunthaler, G.

H. Zajicek, P. Juza, E. Abramof, O. Pankratov, H. Sitter, M. Helm, G. Brunthaler, and W. Faschinger, "Photoluminescence from ultrathin ZnSe/CdSe quantum wells," Appl. Phys. Lett. 62, 717-719 (1993).
[CrossRef]

De Melo, O.

C. Vargas-Hernandez, O. De Melo, and I. Hernandez-Carderon, "Photoluminescence study of ultra-thin CdSe quantum wells," Phys. Status Solidi B 230, 331-334 (2002).
[CrossRef]

Dobrowolska, M.

J. C. Kim, H. Rho, L. M. Smith, H. E. Jackson, S. Lee, M. Dobrowolska, and J. K. Furdyna, "Temperature-dependent micro-photoluminescence of individual CdSe self-assembled quantum dots," Appl. Phys. Lett. 75, 214-216 (1999).
[CrossRef]

Donegan, J. F.

A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
[CrossRef]

Dunstan, D. J.

M. Vening, D. J. Dunstan, and K. P. Homewood, "Thermal quenching and retrapping effects in the photoluminescence of InyGa1-y/GaAs/AlxGa1-xAs multiple-quantum-well structures," Phys. Rev. B 48, 2412-2417 (1993).
[CrossRef]

Faschinger, W.

H. Zajicek, P. Juza, E. Abramof, O. Pankratov, H. Sitter, M. Helm, G. Brunthaler, and W. Faschinger, "Photoluminescence from ultrathin ZnSe/CdSe quantum wells," Appl. Phys. Lett. 62, 717-719 (1993).
[CrossRef]

Franchi, S.

A. V. Gopal, R. Kumar, A. S. Vengurlekar, A. Bosacchi, S. Franchi, and L. N. Pfeiffer, "Photoluminescence study of exciton-optical phonon scattering in bulk GaAs and GaAs quantum wells," J. Appl. Phys. 87, 1858-1862 (2000).
[CrossRef]

Furdyna, J. K.

J. C. Kim, H. Rho, L. M. Smith, H. E. Jackson, S. Lee, M. Dobrowolska, and J. K. Furdyna, "Temperature-dependent micro-photoluminescence of individual CdSe self-assembled quantum dots," Appl. Phys. Lett. 75, 214-216 (1999).
[CrossRef]

Gammon, D.

D. Gammon, S. Rudin, T. L. Reinecke, D. S. Katzer, and C. S. Kyono, "Phonon broadening of excitons in GaAs/AlGaAs quantum wells," Phys. Rev. B 51, 16785-16789 (1995).
[CrossRef]

Gaponenko, S. V.

S. V. Gaponenko, Optical Properties of Semiconductor Nanocrystals (Cambridge U. Press, Cambridge, UK, 1998).
[CrossRef]

Gopal, A. V.

A. V. Gopal, R. Kumar, A. S. Vengurlekar, A. Bosacchi, S. Franchi, and L. N. Pfeiffer, "Photoluminescence study of exciton-optical phonon scattering in bulk GaAs and GaAs quantum wells," J. Appl. Phys. 87, 1858-1862 (2000).
[CrossRef]

Guo, W.

J. J. Li, Y. A. Wang, W. Guo, J. C. Keay, T. D. Mishima, M. B. Johnson, and X. Peng, "Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction," J. Am. Chem. Soc. 125, 12567-12575 (2003).
[CrossRef] [PubMed]

Heitz, R.

R. Heitz, I. Mukhametzhanov, A. Madhukar, A. Hoffmann, and D. Bimberg, "Temperature dependent optical properties of self-organized InAs GaAs quantum dots," J. Electron. Mater. 28, 520-527 (1999).
[CrossRef]

Helm, M.

H. Zajicek, P. Juza, E. Abramof, O. Pankratov, H. Sitter, M. Helm, G. Brunthaler, and W. Faschinger, "Photoluminescence from ultrathin ZnSe/CdSe quantum wells," Appl. Phys. Lett. 62, 717-719 (1993).
[CrossRef]

Hernandez-Carderon, I.

C. Vargas-Hernandez, O. De Melo, and I. Hernandez-Carderon, "Photoluminescence study of ultra-thin CdSe quantum wells," Phys. Status Solidi B 230, 331-334 (2002).
[CrossRef]

Hoffmann, A.

R. Heitz, I. Mukhametzhanov, A. Madhukar, A. Hoffmann, and D. Bimberg, "Temperature dependent optical properties of self-organized InAs GaAs quantum dots," J. Electron. Mater. 28, 520-527 (1999).
[CrossRef]

Homewood, K. P.

M. Vening, D. J. Dunstan, and K. P. Homewood, "Thermal quenching and retrapping effects in the photoluminescence of InyGa1-y/GaAs/AlxGa1-xAs multiple-quantum-well structures," Phys. Rev. B 48, 2412-2417 (1993).
[CrossRef]

Hvam, J. M.

P. Borri, W. Langbein, J. M. Hvam, and F. Martelli, "Well-width dependence of exciton-phonon scattering in InxGa1-xAs/GaAs single quantum wells," Phys. Rev. B 59, 2215-2222 (1999).
[CrossRef]

Jackson, H. E.

J. C. Kim, H. Rho, L. M. Smith, H. E. Jackson, S. Lee, M. Dobrowolska, and J. K. Furdyna, "Temperature-dependent micro-photoluminescence of individual CdSe self-assembled quantum dots," Appl. Phys. Lett. 75, 214-216 (1999).
[CrossRef]

Johnson, M. B.

J. J. Li, Y. A. Wang, W. Guo, J. C. Keay, T. D. Mishima, M. B. Johnson, and X. Peng, "Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction," J. Am. Chem. Soc. 125, 12567-12575 (2003).
[CrossRef] [PubMed]

Juza, P.

H. Zajicek, P. Juza, E. Abramof, O. Pankratov, H. Sitter, M. Helm, G. Brunthaler, and W. Faschinger, "Photoluminescence from ultrathin ZnSe/CdSe quantum wells," Appl. Phys. Lett. 62, 717-719 (1993).
[CrossRef]

Kaneta, A.

A. Kaneta and S. Adachi, "Photoreflectance study of hexagonal CdSe," J. Phys. D 32, 2337-2341 (1999).
[CrossRef]

Katzer, D. S.

D. Gammon, S. Rudin, T. L. Reinecke, D. S. Katzer, and C. S. Kyono, "Phonon broadening of excitons in GaAs/AlGaAs quantum wells," Phys. Rev. B 51, 16785-16789 (1995).
[CrossRef]

Keay, J. C.

J. J. Li, Y. A. Wang, W. Guo, J. C. Keay, T. D. Mishima, M. B. Johnson, and X. Peng, "Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction," J. Am. Chem. Soc. 125, 12567-12575 (2003).
[CrossRef] [PubMed]

Kim, J. C.

J. C. Kim, H. Rho, L. M. Smith, H. E. Jackson, S. Lee, M. Dobrowolska, and J. K. Furdyna, "Temperature-dependent micro-photoluminescence of individual CdSe self-assembled quantum dots," Appl. Phys. Lett. 75, 214-216 (1999).
[CrossRef]

Klimov, V. I

V. I Klimov, "Linear and nonlinear optical spectroscopy of semiconductor nanocrystals," in Handbook of Nanostructured Materials and Nanotechnology, H.S.Nalwa, ed. (Academic, San Diego, Calif., 2000), Vol. 4, pp. 451-527.

Kumar, R.

A. V. Gopal, R. Kumar, A. S. Vengurlekar, A. Bosacchi, S. Franchi, and L. N. Pfeiffer, "Photoluminescence study of exciton-optical phonon scattering in bulk GaAs and GaAs quantum wells," J. Appl. Phys. 87, 1858-1862 (2000).
[CrossRef]

Kyono, C. S.

D. Gammon, S. Rudin, T. L. Reinecke, D. S. Katzer, and C. S. Kyono, "Phonon broadening of excitons in GaAs/AlGaAs quantum wells," Phys. Rev. B 51, 16785-16789 (1995).
[CrossRef]

Langbein, W.

P. Borri, W. Langbein, J. M. Hvam, and F. Martelli, "Well-width dependence of exciton-phonon scattering in InxGa1-xAs/GaAs single quantum wells," Phys. Rev. B 59, 2215-2222 (1999).
[CrossRef]

Lee, S.

J. C. Kim, H. Rho, L. M. Smith, H. E. Jackson, S. Lee, M. Dobrowolska, and J. K. Furdyna, "Temperature-dependent micro-photoluminescence of individual CdSe self-assembled quantum dots," Appl. Phys. Lett. 75, 214-216 (1999).
[CrossRef]

Li, J. J.

D. Battaglia, J. J. Li, Y. Wang, and X. Peng, "Colloidal two-dimensional systems: CdSe quantum shells and wells," Angew. Chem., Int. Ed. 42, 5035-5039 (2003).
[CrossRef]

J. J. Li, Y. A. Wang, W. Guo, J. C. Keay, T. D. Mishima, M. B. Johnson, and X. Peng, "Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction," J. Am. Chem. Soc. 125, 12567-12575 (2003).
[CrossRef] [PubMed]

Madhukar, A.

R. Heitz, I. Mukhametzhanov, A. Madhukar, A. Hoffmann, and D. Bimberg, "Temperature dependent optical properties of self-organized InAs GaAs quantum dots," J. Electron. Mater. 28, 520-527 (1999).
[CrossRef]

Martelli, F.

P. Borri, W. Langbein, J. M. Hvam, and F. Martelli, "Well-width dependence of exciton-phonon scattering in InxGa1-xAs/GaAs single quantum wells," Phys. Rev. B 59, 2215-2222 (1999).
[CrossRef]

Masumoto, Y.

A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
[CrossRef]

Menendez-Proupin, E.

E. Menendez-Proupin and C. Trallero-Giner, "Electric-field and exciton structure in CdSe nanocrystals," Phys. Rev. B 69, 125336 (2004).
[CrossRef]

Mishima, T. D.

J. J. Li, Y. A. Wang, W. Guo, J. C. Keay, T. D. Mishima, M. B. Johnson, and X. Peng, "Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction," J. Am. Chem. Soc. 125, 12567-12575 (2003).
[CrossRef] [PubMed]

Moore, R. A.

A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
[CrossRef]

Mukhametzhanov, I.

R. Heitz, I. Mukhametzhanov, A. Madhukar, A. Hoffmann, and D. Bimberg, "Temperature dependent optical properties of self-organized InAs GaAs quantum dots," J. Electron. Mater. 28, 520-527 (1999).
[CrossRef]

Nabiev, I.

A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
[CrossRef]

Pankratov, O.

H. Zajicek, P. Juza, E. Abramof, O. Pankratov, H. Sitter, M. Helm, G. Brunthaler, and W. Faschinger, "Photoluminescence from ultrathin ZnSe/CdSe quantum wells," Appl. Phys. Lett. 62, 717-719 (1993).
[CrossRef]

Peng, X.

J. J. Li, Y. A. Wang, W. Guo, J. C. Keay, T. D. Mishima, M. B. Johnson, and X. Peng, "Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction," J. Am. Chem. Soc. 125, 12567-12575 (2003).
[CrossRef] [PubMed]

D. Battaglia, J. J. Li, Y. Wang, and X. Peng, "Colloidal two-dimensional systems: CdSe quantum shells and wells," Angew. Chem., Int. Ed. 42, 5035-5039 (2003).
[CrossRef]

Perova, T. S.

A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
[CrossRef]

Pfeiffer, L. N.

A. V. Gopal, R. Kumar, A. S. Vengurlekar, A. Bosacchi, S. Franchi, and L. N. Pfeiffer, "Photoluminescence study of exciton-optical phonon scattering in bulk GaAs and GaAs quantum wells," J. Appl. Phys. 87, 1858-1862 (2000).
[CrossRef]

Rakovich, Y. P.

A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
[CrossRef]

Reinecke, T. L.

D. Gammon, S. Rudin, T. L. Reinecke, D. S. Katzer, and C. S. Kyono, "Phonon broadening of excitons in GaAs/AlGaAs quantum wells," Phys. Rev. B 51, 16785-16789 (1995).
[CrossRef]

Rho, H.

J. C. Kim, H. Rho, L. M. Smith, H. E. Jackson, S. Lee, M. Dobrowolska, and J. K. Furdyna, "Temperature-dependent micro-photoluminescence of individual CdSe self-assembled quantum dots," Appl. Phys. Lett. 75, 214-216 (1999).
[CrossRef]

Rogach, A. L.

A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
[CrossRef]

Rudin, S.

D. Gammon, S. Rudin, T. L. Reinecke, D. S. Katzer, and C. S. Kyono, "Phonon broadening of excitons in GaAs/AlGaAs quantum wells," Phys. Rev. B 51, 16785-16789 (1995).
[CrossRef]

Shen, S. C.

W. Z. Shen, W. G. Tang, S. C. Shen, S. M. Wang, and T. G. Anderson, "Absorption spectroscopy studies of strained InGaAs/GaAs single quantum wells," Appl. Phys. Lett. 65, 2728-2730 (1994).
[CrossRef]

Shen, W. Z.

W. Z. Shen, W. G. Tang, S. C. Shen, S. M. Wang, and T. G. Anderson, "Absorption spectroscopy studies of strained InGaAs/GaAs single quantum wells," Appl. Phys. Lett. 65, 2728-2730 (1994).
[CrossRef]

Shi, J.

J. Shi, "Excitons in quantum-dot quantum-well nanoparticles," Chin. Phys. 11, 1286-1293 (2002).
[CrossRef]

Sitter, H.

H. Zajicek, P. Juza, E. Abramof, O. Pankratov, H. Sitter, M. Helm, G. Brunthaler, and W. Faschinger, "Photoluminescence from ultrathin ZnSe/CdSe quantum wells," Appl. Phys. Lett. 62, 717-719 (1993).
[CrossRef]

Smith, L. M.

J. C. Kim, H. Rho, L. M. Smith, H. E. Jackson, S. Lee, M. Dobrowolska, and J. K. Furdyna, "Temperature-dependent micro-photoluminescence of individual CdSe self-assembled quantum dots," Appl. Phys. Lett. 75, 214-216 (1999).
[CrossRef]

Talapin, D. V.

A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
[CrossRef]

Tang, W. G.

W. Z. Shen, W. G. Tang, S. C. Shen, S. M. Wang, and T. G. Anderson, "Absorption spectroscopy studies of strained InGaAs/GaAs single quantum wells," Appl. Phys. Lett. 65, 2728-2730 (1994).
[CrossRef]

Trallero-Giner, C.

E. Menendez-Proupin and C. Trallero-Giner, "Electric-field and exciton structure in CdSe nanocrystals," Phys. Rev. B 69, 125336 (2004).
[CrossRef]

Vargas-Hernandez, C.

C. Vargas-Hernandez, O. De Melo, and I. Hernandez-Carderon, "Photoluminescence study of ultra-thin CdSe quantum wells," Phys. Status Solidi B 230, 331-334 (2002).
[CrossRef]

Varshni, Y. P.

Y. P. Varshni, "Temperature dependence of energy gap in semiconductors," Physica (Amsterdam) 34, 149 (1967).
[CrossRef]

Vengurlekar, A. S.

A. V. Gopal, R. Kumar, A. S. Vengurlekar, A. Bosacchi, S. Franchi, and L. N. Pfeiffer, "Photoluminescence study of exciton-optical phonon scattering in bulk GaAs and GaAs quantum wells," J. Appl. Phys. 87, 1858-1862 (2000).
[CrossRef]

Vening, M.

M. Vening, D. J. Dunstan, and K. P. Homewood, "Thermal quenching and retrapping effects in the photoluminescence of InyGa1-y/GaAs/AlxGa1-xAs multiple-quantum-well structures," Phys. Rev. B 48, 2412-2417 (1993).
[CrossRef]

Wang, S. M.

W. Z. Shen, W. G. Tang, S. C. Shen, S. M. Wang, and T. G. Anderson, "Absorption spectroscopy studies of strained InGaAs/GaAs single quantum wells," Appl. Phys. Lett. 65, 2728-2730 (1994).
[CrossRef]

Wang, Y.

D. Battaglia, J. J. Li, Y. Wang, and X. Peng, "Colloidal two-dimensional systems: CdSe quantum shells and wells," Angew. Chem., Int. Ed. 42, 5035-5039 (2003).
[CrossRef]

Wang, Y. A.

J. J. Li, Y. A. Wang, W. Guo, J. C. Keay, T. D. Mishima, M. B. Johnson, and X. Peng, "Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction," J. Am. Chem. Soc. 125, 12567-12575 (2003).
[CrossRef] [PubMed]

Zajicek, H.

H. Zajicek, P. Juza, E. Abramof, O. Pankratov, H. Sitter, M. Helm, G. Brunthaler, and W. Faschinger, "Photoluminescence from ultrathin ZnSe/CdSe quantum wells," Appl. Phys. Lett. 62, 717-719 (1993).
[CrossRef]

Angew. Chem., Int. Ed. (1)

D. Battaglia, J. J. Li, Y. Wang, and X. Peng, "Colloidal two-dimensional systems: CdSe quantum shells and wells," Angew. Chem., Int. Ed. 42, 5035-5039 (2003).
[CrossRef]

Appl. Phys. Lett. (3)

J. C. Kim, H. Rho, L. M. Smith, H. E. Jackson, S. Lee, M. Dobrowolska, and J. K. Furdyna, "Temperature-dependent micro-photoluminescence of individual CdSe self-assembled quantum dots," Appl. Phys. Lett. 75, 214-216 (1999).
[CrossRef]

H. Zajicek, P. Juza, E. Abramof, O. Pankratov, H. Sitter, M. Helm, G. Brunthaler, and W. Faschinger, "Photoluminescence from ultrathin ZnSe/CdSe quantum wells," Appl. Phys. Lett. 62, 717-719 (1993).
[CrossRef]

W. Z. Shen, W. G. Tang, S. C. Shen, S. M. Wang, and T. G. Anderson, "Absorption spectroscopy studies of strained InGaAs/GaAs single quantum wells," Appl. Phys. Lett. 65, 2728-2730 (1994).
[CrossRef]

Chin. Phys. (1)

J. Shi, "Excitons in quantum-dot quantum-well nanoparticles," Chin. Phys. 11, 1286-1293 (2002).
[CrossRef]

J. Am. Chem. Soc. (1)

J. J. Li, Y. A. Wang, W. Guo, J. C. Keay, T. D. Mishima, M. B. Johnson, and X. Peng, "Large-scale synthesis of nearly monodisperse CdSe/CdS core/shell nanocrystals using air-stable reagents via successive ion layer adsorption and reaction," J. Am. Chem. Soc. 125, 12567-12575 (2003).
[CrossRef] [PubMed]

J. Appl. Phys. (1)

A. V. Gopal, R. Kumar, A. S. Vengurlekar, A. Bosacchi, S. Franchi, and L. N. Pfeiffer, "Photoluminescence study of exciton-optical phonon scattering in bulk GaAs and GaAs quantum wells," J. Appl. Phys. 87, 1858-1862 (2000).
[CrossRef]

J. Electron. Mater. (1)

R. Heitz, I. Mukhametzhanov, A. Madhukar, A. Hoffmann, and D. Bimberg, "Temperature dependent optical properties of self-organized InAs GaAs quantum dots," J. Electron. Mater. 28, 520-527 (1999).
[CrossRef]

J. Phys. D (1)

A. Kaneta and S. Adachi, "Photoreflectance study of hexagonal CdSe," J. Phys. D 32, 2337-2341 (1999).
[CrossRef]

Phys. Rev. B (5)

D. Gammon, S. Rudin, T. L. Reinecke, D. S. Katzer, and C. S. Kyono, "Phonon broadening of excitons in GaAs/AlGaAs quantum wells," Phys. Rev. B 51, 16785-16789 (1995).
[CrossRef]

P. Borri, W. Langbein, J. M. Hvam, and F. Martelli, "Well-width dependence of exciton-phonon scattering in InxGa1-xAs/GaAs single quantum wells," Phys. Rev. B 59, 2215-2222 (1999).
[CrossRef]

A. V. Baranov, Y. P. Rakovich, J. F. Donegan, T. S. Perova, R. A. Moore, D. V. Talapin, A. L. Rogach, Y. Masumoto, and I. Nabiev, "Effect of ZnS shell thickness on the phonon spectra in CdSe quantum dots," Phys. Rev. B 68, 165306 (2003).
[CrossRef]

M. Vening, D. J. Dunstan, and K. P. Homewood, "Thermal quenching and retrapping effects in the photoluminescence of InyGa1-y/GaAs/AlxGa1-xAs multiple-quantum-well structures," Phys. Rev. B 48, 2412-2417 (1993).
[CrossRef]

E. Menendez-Proupin and C. Trallero-Giner, "Electric-field and exciton structure in CdSe nanocrystals," Phys. Rev. B 69, 125336 (2004).
[CrossRef]

Phys. Status Solidi B (1)

C. Vargas-Hernandez, O. De Melo, and I. Hernandez-Carderon, "Photoluminescence study of ultra-thin CdSe quantum wells," Phys. Status Solidi B 230, 331-334 (2002).
[CrossRef]

Physica (Amsterdam) (1)

Y. P. Varshni, "Temperature dependence of energy gap in semiconductors," Physica (Amsterdam) 34, 149 (1967).
[CrossRef]

Other (2)

V. I Klimov, "Linear and nonlinear optical spectroscopy of semiconductor nanocrystals," in Handbook of Nanostructured Materials and Nanotechnology, H.S.Nalwa, ed. (Academic, San Diego, Calif., 2000), Vol. 4, pp. 451-527.

S. V. Gaponenko, Optical Properties of Semiconductor Nanocrystals (Cambridge U. Press, Cambridge, UK, 1998).
[CrossRef]

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (4)

Fig. 1
Fig. 1

Absorption (solid curves) and PL (dashed curves) spectra of a CdS–CdSe–CdS QW structure with different QW thicknesses. The inset gives the PL QY and peak position as a function of CdSe QW thickness.

Fig. 2
Fig. 2

Excitation intensity dependence of the PL intensity for (a) 4-ML and (b) 2-ML CdSe QWs.

Fig. 3
Fig. 3

Temperature dependences of (a) the integrated PL intensity and (b) the energy position (squares) and FWHM (circles) of the PL emission from a 3-ML QW sample. Solid curves represent fits to the data, and the dashed curve in (a) is the fitted curve with activation energy of 42 meV for comparison.

Fig. 4
Fig. 4

(a) FWHM and (b) the energy position of the PL emission from 2- (squares), 3- (circles), 4- (triangles), and 5- (crosses) ML QWs at different temperatures. Solid curves represent fits to the data.

Tables (1)

Tables Icon

Table 1 Calculated (through Fitting the Experimental Data) Energy Levels at 0 K, E ( 0 ) , Parameters β and γ, Temperature-Independent Linewidth Γ 0 , and LO Phonon Scattering Strength Γ LO Based on Eqs. (2, 3)

Equations (3)

Equations on this page are rendered with MathJax. Learn more.

I ( T ) = I 0 [ 1 + C exp ( E a k T ) ] 1 ,
Γ = Γ 0 + Γ LO [ exp ( ω k T ) 1 ] 1 ,
E ( T ) = E ( 0 ) β T 2 ( T + γ ) ,

Metrics