Skip to main content Accessibility help
×
Home

Low-temperature Photoluminescence Studies of CdTe Thin Films Deposited on CdS/ZnO/Glass Substrates

  • Corneliu Rotaru (a1), Sergiu Vatavu (a1) (a2) (a3), Christoph Merschjann (a2), Chris Ferekides (a3), Vladimir Fedorov (a1), Tobias Tyborski (a2), Mihail Caraman (a1), Petru Gaşin (a1), Martha Ch. Lux-Steiner (a2) and Marin Rusu (a1) (a2)...

Abstract

The CdTe photoluminescence spectra of CdTe/CdS/ZnO heterojunctions annealed in the presence of CdCl2 have been analyzed in the 4.7-100K temperature range. The analysis has been performed for laser excitation power between 0.01 mW and 30 mW. The analysis showed that the photoluminescence spectrum in the 1.1-1.6 eV region consists of a defect band (1.437 eV) having complex structure and revealing well contoured LO phonon replicas and bound exciton annihilation in the 1.587-1.593 eV region. The band analysis has been carried out by deconvoluting the spectra. It has been shown that the defect band consists of two elementary bands and their phonon replica. An “unusual” temperature dependence of the defect band has been found.

Copyright

References

Hide All
1. Vatavu, S., Zhao, H., Padma, V., Rudaraju, R., Morel, D.L., Gaşin, P., Caraman, Iu. and Ferekides, C.S., Thin Solid Films, 515, 6107 (2007).
2. Vatavu, S., Rotaru, C., Fedorov, V., Stein, T. A., Caraman, M., Evtodiev, Ig., Kelch, C., Kirsch, M., Chetruş, P., Gaşin, P., Lux-Steiner, M. Ch. and Rusu, M., Thin Solid Films, http://dx.doi.org/10.1016/j.tsf.2012.11.105 (2013).
3. Onodera, C., Taguchi, T., J. Cryst. Growth, 101, 502 (1990).
4 Physics and Chemistry of II-VI compounds, edited by Aven, M. and Prener, J.S. (North Holland Publishing Company, Amsterdam, 1967). Physics and Chemistry of AIIBVI compounds, S.A. Medevedev (Ed.), MIR, Moskow, 1970.
5. Prochazka, J., Hlidek, P., Franc, J., Grill, R., Belas, E., Bugar, M., Babentsov, V. and James, R. B., J. Appl. Phys., 110, 093103 (2011).
6. Krustok, J., Madasson, J., Hjelt, K., Collan, H., J. Mater. Sci. Lett., 14, 1490 (1995).
7. Cotal, H.L., Lewandowski, A.C., Markey, B.G., McKeever, S.W.S., Cantwell, E., Aldridge, J., J. Appl. Phys., 67(2), 975 (1990).
8. Aguilar-Hernandez, J., Contreras-Puente, G., Flores-Llamas, H., Yee-Madeira, H. and Zelaya-Angel, O., J. Phys. D: Appl. Phys., 28, 1517 (1995).
9. Biernacki, S., Scherz, U., Meyer, B.K., Phys. Rev. B, 48, 11726 (1993).
10. Mathew, X., Arizmendi, J.R., Campos, J., Sebastian, P.J., Mathews, N.R., Jimenez, C.R., Jimenez, M.G., Silva-Gonzalez, R., Hernandez-Torres, M.E., Dhere, R., Sol. Energy Mater. & Solar Cells, 70, 379 (2001).
11. Giles, N. C., Bicknell, R. N., and Schetzina, J. F., J. Vac. Sci. Technol., A 5, 3064 (1987).
12. Hiesinger, P., Suga, S., Willmann, F., Dreybrod, W., Phys. Stat. Sol.(b), 67 641 (1975).
13. Shin, H.-Y., Sun, C.-Y., J. Cryst. Growth, Sun, J. Cryst. Growth, 186, 354 (1998).
14. Vatavu, S., Zhao, H., Caraman, Iu., Gasin, P., Ferekides, C., Thin Solid Films, 517, 2195 (2009).
15. Feng, Z.C., Bevan, M.J., Krishnaswamy, S.V., Choyke, W.J., J. Appl. Phys., 64, 2595 (1988).
16. Panosyan, Zh.R. in Radiative Recombination in Semiconductor Crystals, (D. V. Skobeltsyn, Proceedings of the P.N. Lebedev Physics Institute, Consultant Bureau, New York, 1975), Vol. 68, p. 145.

Keywords

Related content

Powered by UNSILO

Low-temperature Photoluminescence Studies of CdTe Thin Films Deposited on CdS/ZnO/Glass Substrates

  • Corneliu Rotaru (a1), Sergiu Vatavu (a1) (a2) (a3), Christoph Merschjann (a2), Chris Ferekides (a3), Vladimir Fedorov (a1), Tobias Tyborski (a2), Mihail Caraman (a1), Petru Gaşin (a1), Martha Ch. Lux-Steiner (a2) and Marin Rusu (a1) (a2)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.