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22 October 2010Investigation of fabricating the films in the phase transition regime from amorphous to microcrystalline by MWECR CVD system
The microcrystalline silicon films in the phase transition regime from amorphous to microcrystalline were fabricated by
microwave electron-cyclotron-resonance chemical vapor deposition (MWECR CVD) system. The influence of
deposition temperature and deposition pressure on the structure and electrical properties of microcrystalline silicon films
was investigated. It is shown that the films in the phase transition regime from amorphous to microcrystalline are easier
to fabricate under the condition of lower deposition pressure and higher substrate temperature. For example, the films in
the phase transition regime whose crystalline volume fraction is about 30 %, were deposited at substrate temperature of
170 °C and deposition pressure of 0.7 Pa. The films' μτ product is about the order of magnitude of 10-5, whose
magnitude is two order higher than that of amorphous silicon films, and their photosensitivity is about 103~104.
Therefore, having both high stability and excellent optoelectric properties of the high-quality and device grade film, it is
suitable to fabricate the intrinsic materials for amorphous silicon based solar cells.
Y. J. Xie,Y. H. Hu,R. X. Xiao,H. Gao,G. H. Chen,H. J. Xu,Y. C. Chen, andL. F. Wang
"Investigation of fabricating the films in the phase transition regime from amorphous to microcrystalline by MWECR CVD system", Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 765821 (22 October 2010); https://doi.org/10.1117/12.866303
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Y. J. Xie, Y. H. Hu, R. X. Xiao, H. Gao, G. H. Chen, H. J. Xu, Y. C. Chen, L. F. Wang, "Investigation of fabricating the films in the phase transition regime from amorphous to microcrystalline by MWECR CVD system," Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 765821 (22 October 2010); https://doi.org/10.1117/12.866303