Abstract

We study the steady-state and time-resolved luminescent properties of CdTe nanocrystals by one- and two-photon excitation with a femtosecond laser. We observe that 1208 nm excitation causes a shift of the emission peak of about 20 nm to the infrared compared with 400 nm laser excitation. It is found that upconversion luminescence is composed of a photoinduced trapping and a band edge excitonic state and produces the observation of biexponential decay kinetics. We conclude that the redshift of the emission peak is caused by the relative change in luminescence intensity between excitonic and trapping states.

© 2007 Optical Society of America

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  1. A. M. Kapitonov, A. P. Stupak, S. V. Gaponenko, E. P. Petrov, A. L. Rogach, and A. Eychmüller, J. Phys. Chem. B 103, 10109 (1999).
    [CrossRef]
  2. M. Y. Gao, S. Kirstein, H. M Wald, A. L. Rogach, A. Kornowski, A. Eychmüller, and H. Weller, J. Phys. Chem. B 102, 8360 (1998).
    [CrossRef]
  3. W. Chen, A. G. Joly, and J. Z. Zhang, Phys. Rev. B 64, 041202 (2001).
    [CrossRef]
  4. D. V. Talapin, A. L. Rogach, and K. Hoppe, J. Phys. Chem. B 106, 7177 (2002).
    [CrossRef]
  5. W. W. Yu, L. Qu, W. Guo, and X. Peng, Chem. Mater. 15, 2854 (2003).
    [CrossRef]
  6. W. G. Chen and M. S. Braiman, Photochem. Photobiol. 54, 905 (1991).
  7. A. Javier, D. Magana, T. Jennings, and G. F. Strouse, Appl. Phys. Lett. 83, 1423 (2003).
    [CrossRef]
  8. B. Ullrich, R. Schroeder, W. Graupner, and H. Saka, Opt. Express 9, 116 (2001).
  9. E. Poles, D. C. Selmarten, O. I. Micic, and A. J. Nozik, Appl. Phys. Lett. 75, 971 (1999).
    [CrossRef]

2003 (2)

W. W. Yu, L. Qu, W. Guo, and X. Peng, Chem. Mater. 15, 2854 (2003).
[CrossRef]

A. Javier, D. Magana, T. Jennings, and G. F. Strouse, Appl. Phys. Lett. 83, 1423 (2003).
[CrossRef]

2002 (1)

D. V. Talapin, A. L. Rogach, and K. Hoppe, J. Phys. Chem. B 106, 7177 (2002).
[CrossRef]

2001 (2)

W. Chen, A. G. Joly, and J. Z. Zhang, Phys. Rev. B 64, 041202 (2001).
[CrossRef]

B. Ullrich, R. Schroeder, W. Graupner, and H. Saka, Opt. Express 9, 116 (2001).

1999 (2)

A. M. Kapitonov, A. P. Stupak, S. V. Gaponenko, E. P. Petrov, A. L. Rogach, and A. Eychmüller, J. Phys. Chem. B 103, 10109 (1999).
[CrossRef]

E. Poles, D. C. Selmarten, O. I. Micic, and A. J. Nozik, Appl. Phys. Lett. 75, 971 (1999).
[CrossRef]

1998 (1)

M. Y. Gao, S. Kirstein, H. M Wald, A. L. Rogach, A. Kornowski, A. Eychmüller, and H. Weller, J. Phys. Chem. B 102, 8360 (1998).
[CrossRef]

1991 (1)

W. G. Chen and M. S. Braiman, Photochem. Photobiol. 54, 905 (1991).

Braiman, M. S.

W. G. Chen and M. S. Braiman, Photochem. Photobiol. 54, 905 (1991).

Chen, W.

W. Chen, A. G. Joly, and J. Z. Zhang, Phys. Rev. B 64, 041202 (2001).
[CrossRef]

Chen, W. G.

W. G. Chen and M. S. Braiman, Photochem. Photobiol. 54, 905 (1991).

Eychmüller, A.

A. M. Kapitonov, A. P. Stupak, S. V. Gaponenko, E. P. Petrov, A. L. Rogach, and A. Eychmüller, J. Phys. Chem. B 103, 10109 (1999).
[CrossRef]

M. Y. Gao, S. Kirstein, H. M Wald, A. L. Rogach, A. Kornowski, A. Eychmüller, and H. Weller, J. Phys. Chem. B 102, 8360 (1998).
[CrossRef]

Gao, M. Y.

M. Y. Gao, S. Kirstein, H. M Wald, A. L. Rogach, A. Kornowski, A. Eychmüller, and H. Weller, J. Phys. Chem. B 102, 8360 (1998).
[CrossRef]

Graupner, W.

Guo, W.

W. W. Yu, L. Qu, W. Guo, and X. Peng, Chem. Mater. 15, 2854 (2003).
[CrossRef]

Hoppe, K.

D. V. Talapin, A. L. Rogach, and K. Hoppe, J. Phys. Chem. B 106, 7177 (2002).
[CrossRef]

Javier, A.

A. Javier, D. Magana, T. Jennings, and G. F. Strouse, Appl. Phys. Lett. 83, 1423 (2003).
[CrossRef]

Jennings, T.

A. Javier, D. Magana, T. Jennings, and G. F. Strouse, Appl. Phys. Lett. 83, 1423 (2003).
[CrossRef]

Joly, A. G.

W. Chen, A. G. Joly, and J. Z. Zhang, Phys. Rev. B 64, 041202 (2001).
[CrossRef]

Kapitonov, A. M.

A. M. Kapitonov, A. P. Stupak, S. V. Gaponenko, E. P. Petrov, A. L. Rogach, and A. Eychmüller, J. Phys. Chem. B 103, 10109 (1999).
[CrossRef]

Kirstein, S.

M. Y. Gao, S. Kirstein, H. M Wald, A. L. Rogach, A. Kornowski, A. Eychmüller, and H. Weller, J. Phys. Chem. B 102, 8360 (1998).
[CrossRef]

Kornowski, A.

M. Y. Gao, S. Kirstein, H. M Wald, A. L. Rogach, A. Kornowski, A. Eychmüller, and H. Weller, J. Phys. Chem. B 102, 8360 (1998).
[CrossRef]

Magana, D.

A. Javier, D. Magana, T. Jennings, and G. F. Strouse, Appl. Phys. Lett. 83, 1423 (2003).
[CrossRef]

Micic, O. I.

E. Poles, D. C. Selmarten, O. I. Micic, and A. J. Nozik, Appl. Phys. Lett. 75, 971 (1999).
[CrossRef]

Nozik, A. J.

E. Poles, D. C. Selmarten, O. I. Micic, and A. J. Nozik, Appl. Phys. Lett. 75, 971 (1999).
[CrossRef]

Peng, X.

W. W. Yu, L. Qu, W. Guo, and X. Peng, Chem. Mater. 15, 2854 (2003).
[CrossRef]

Petrov, S. V. Gaponenko, E. P.

A. M. Kapitonov, A. P. Stupak, S. V. Gaponenko, E. P. Petrov, A. L. Rogach, and A. Eychmüller, J. Phys. Chem. B 103, 10109 (1999).
[CrossRef]

Poles, E.

E. Poles, D. C. Selmarten, O. I. Micic, and A. J. Nozik, Appl. Phys. Lett. 75, 971 (1999).
[CrossRef]

Qu, L.

W. W. Yu, L. Qu, W. Guo, and X. Peng, Chem. Mater. 15, 2854 (2003).
[CrossRef]

Rogach, A. L.

D. V. Talapin, A. L. Rogach, and K. Hoppe, J. Phys. Chem. B 106, 7177 (2002).
[CrossRef]

A. M. Kapitonov, A. P. Stupak, S. V. Gaponenko, E. P. Petrov, A. L. Rogach, and A. Eychmüller, J. Phys. Chem. B 103, 10109 (1999).
[CrossRef]

Rogach, H. M Wald, A. L.

M. Y. Gao, S. Kirstein, H. M Wald, A. L. Rogach, A. Kornowski, A. Eychmüller, and H. Weller, J. Phys. Chem. B 102, 8360 (1998).
[CrossRef]

Saka, H.

Schroeder, R.

Selmarten, D. C.

E. Poles, D. C. Selmarten, O. I. Micic, and A. J. Nozik, Appl. Phys. Lett. 75, 971 (1999).
[CrossRef]

Strouse, G. F.

A. Javier, D. Magana, T. Jennings, and G. F. Strouse, Appl. Phys. Lett. 83, 1423 (2003).
[CrossRef]

Stupak, A. P.

A. M. Kapitonov, A. P. Stupak, S. V. Gaponenko, E. P. Petrov, A. L. Rogach, and A. Eychmüller, J. Phys. Chem. B 103, 10109 (1999).
[CrossRef]

Talapin, D. V.

D. V. Talapin, A. L. Rogach, and K. Hoppe, J. Phys. Chem. B 106, 7177 (2002).
[CrossRef]

Ullrich, B.

Weller, H.

M. Y. Gao, S. Kirstein, H. M Wald, A. L. Rogach, A. Kornowski, A. Eychmüller, and H. Weller, J. Phys. Chem. B 102, 8360 (1998).
[CrossRef]

Yu, W. W.

W. W. Yu, L. Qu, W. Guo, and X. Peng, Chem. Mater. 15, 2854 (2003).
[CrossRef]

Zhang, J. Z.

W. Chen, A. G. Joly, and J. Z. Zhang, Phys. Rev. B 64, 041202 (2001).
[CrossRef]

Appl. Phys. Lett. (2)

A. Javier, D. Magana, T. Jennings, and G. F. Strouse, Appl. Phys. Lett. 83, 1423 (2003).
[CrossRef]

E. Poles, D. C. Selmarten, O. I. Micic, and A. J. Nozik, Appl. Phys. Lett. 75, 971 (1999).
[CrossRef]

Chem. Mater. (1)

W. W. Yu, L. Qu, W. Guo, and X. Peng, Chem. Mater. 15, 2854 (2003).
[CrossRef]

J. Phys. Chem. B (3)

A. M. Kapitonov, A. P. Stupak, S. V. Gaponenko, E. P. Petrov, A. L. Rogach, and A. Eychmüller, J. Phys. Chem. B 103, 10109 (1999).
[CrossRef]

M. Y. Gao, S. Kirstein, H. M Wald, A. L. Rogach, A. Kornowski, A. Eychmüller, and H. Weller, J. Phys. Chem. B 102, 8360 (1998).
[CrossRef]

D. V. Talapin, A. L. Rogach, and K. Hoppe, J. Phys. Chem. B 106, 7177 (2002).
[CrossRef]

Opt. Express (1)

Photochem. Photobiol. (1)

W. G. Chen and M. S. Braiman, Photochem. Photobiol. 54, 905 (1991).

Phys. Rev. B (1)

W. Chen, A. G. Joly, and J. Z. Zhang, Phys. Rev. B 64, 041202 (2001).
[CrossRef]

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