Modification of the properties of CdTe films grown by close space vapour sublimation for solar cell applications

J. Plaza, S. Rubio, E. Dieguez, O. Martínez, V. Hortelano
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Abstract

In this work we analyze the growth of CdTe films by close space sublimation as well as the modification of their properties by using low energy ion sputtering. The structure and composition of the films are studied as a function of different growth parameters. The properties of the CdTe films after ion beam irradiation are studied by using AFM and photo-luminescence techniques. Morphological changes have been observed as a result of the sputtering process; in particular, an increased roughness average has been noticed after irradiation.
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近空间蒸汽升华法制备太阳能电池用碲化镉薄膜
本文分析了近空间升华法制备碲化镉薄膜的过程,以及低能离子溅射对薄膜性能的影响。研究了薄膜的结构和组成随不同生长参数的变化规律。采用原子力显微镜和光致发光技术研究了离子束辐照后CdTe薄膜的性能。由于溅射过程,已经观察到形态学的变化;特别是,辐照后的平均粗糙度增加。
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