Optical properties of CdS/CdTe heterojunction prepared by physical vapor deposition technique
DOI:
https://doi.org/10.15330/pcss.19.3.209-216Keywords:
thin film heterostructures, thermal evaporation method, optical propertiesAbstract
The paper presents the study of the optical properties of a thin layer of Cadmium Sulphide deposited on Cadmium Telluride films. CdTe thin films were obtained by vapor phase condensation method using different technological factors, in particular, different thickness (different time of deposition τ) on glass substrates. After deposition the optical properties were analysed by Swanepoel method, using transmission spectra. The upper thin layer of CdS was deposited by thermal evaporation method on CdTe thin films. The change in optical properties of CdS/CdTe heterojunction in comparison with CdTe thin films was investigated. Using a Swanepoel method were calculated the main optical constants, such as refractive index, absorption coefficient and optical conductivity. By this method the thickness of the thin film was determined and compared with the experimental values obtained by the profilometer.
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[16]. J. C. Manifacier, J. Gasiot, and J. P. Fillard, J. Phys. E: Sci. Instrum., 9, (1976) 1002.
[17]. R. Swanepoel, J. Phys. E, Sci. Instrum., 16, (1983) 1214; doi:10.1088/0022-3735/16/12/023.
[18]. R. Swanepoel, J. Phys. E, Sci. Instrum., 17, (1984) 896 .
[19]. F. Alvarez, N. Lalla, A. Lamagana, 26th IEEE Photovoltaic Specialists Conference, 459-462, (1997).
[20]. L. A. Kosyachenko, A. I. Savchuk, E. V. Grushko, Thin Solid Films, 517 (2009) 2386.
[21]. H. A. Mohamed, Can. J. Phys., 92 (2014) 1350.
[22]. L. A. Kosyachenko, E.V. Grushko, V.V. Motushchuk, Sol. Energy Mater. Sol. Cells, 90 (2006) 2201.
[23]. V.V. Brus, Sol. Energy, 86 (2012) 786.
[24]. H.A. Mohamed, J. Appl. Phys., 113 (2013) 093105.
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[26]. K. Punitha, R. Sivakumar, C. Sanjeeviraja, Vasant Sathe, and V. Ganesan, Journal of Applied Physics, 116, 213502 (2014).
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a. Moshfegh, Thin Solid Films, 484(1-2), (2005) 124-1314.
[28]. E. R. Shaaban, I. S. Yahia, E. G. El-Metwally, Acta Physica Polonica-Series A General Physics, 121(3) (2012) 628.
[29]. S. Halindintwali, R. Knoesen, B. Swanepoel, et al., South African Journal of Science, 105(7-8) (2009) 290-293.
[30]. R. E. Treharne, A. Seymour-Pierce, K. Durose, K. Hutchings, S. Roncallo, D. Lane, J. Phys: Conf. Ser. 286, (2011) 012038,.
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Published
2019-05-28
How to Cite
Nykyruy, L., Yaremiichuk, O., Zapukhlyak, Z., Yavorskyi, R., Potera, P., Malyarska, I., & Fedoryk, O. (2019). Optical properties of CdS/CdTe heterojunction prepared by physical vapor deposition technique. Physics and Chemistry of Solid State, 19(3), 209–216. https://doi.org/10.15330/pcss.19.3.209-216
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