Influence of Iodine Pressure on the Growth of CuIn<sub>1-x</sub>Ga<sub>x</sub>Se<sub>2</sub>Thin Films Obtained by Close-Spaced Vapor Transport “CSVT”

• 作者: Dayane Habib Georges El Haj Moussa Roy Al Asmar Ziad El Helou
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 医学
• 关键词: Chemical Vapor Deposition CuIn1-xGaxSe2 Thin Films CHALCOPYRITE Photovoltaic
• 年，卷（期）: 2013,（4）
• 页码范围: 164-168
• 页数: 5页
• 分类号: R73

摘要

We present the results concerning photovoltaic materials CuIn1-xGaxSe2 thin films, which were obtained by close-spaced vapor transport “CSVT”. The influence of the iodine pressure on the growth of CuIn1-xGaxSe2 thin films was studied. The thin films were characterized by Energy Dispersive Spectrometry (EDS), Scanning Electron Microscope (SEM), hot point probe method, X-Ray Diffraction (XRD), Photoluminescence, and Optical response (Photoconductivity). At high pressure, the deposition rate was very important. The films were relatively thick and homogeneous with large grains dimensions. These films are formed of crystals placed in a preferential orientation depending on the plan (112). At low pressure, the films were thin and inhomogeneous with relatively small grains. These films of crystals didn’t have preferential orientation.