Semi-transparent thin film solar cells by a solution process

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• 作者：Van Ben Chu ; Se Jin Park ; Gi Soon Park…
• 关键词：Solar Cell ; CIGS ; ITO ; Precursor Solution ; Thin Film
• 刊名：Korean Journal of Chemical Engineering
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：33
• 期：3
• 页码：880-884
• 全文大小：1,256 KB
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• 作者单位：Van Ben Chu (1) (2)
  Se Jin Park (1)
  Gi Soon Park (1)
  Hyo Sang Jeon (1)
  Yun Jeong Hwang (1) (2)
  Byoung Koun Min (1) (2) (3)
  
  1. Clean Energy Research Center, Korea Institute of Science and Technology, 39-1, Hawolgok-dong, Seongbuk-gu, Seoul, 02792, Korea
  2. Korea University of Science and Technology, 176, Gajeong-dong, 217, Gajeong-ro, Yuseong-gu, Daejeon, 34132, Korea
  3. Green School, Korea University, Anam-dong Seongbuk-gu, Seoul, 02841, Korea
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Industrial Chemistry and Chemical Engineering
  Catalysis
  Materials Science
  Biotechnology
  
• 出版者：Springer New York
• ISSN：1975-7220

文摘

Easily processed, low cost, and highly efficient solar cells are desirable for photovoltaic conversion of solar energy to electricity. We present the fabrication of precursor solution processed CuInGaS2 (CIGS) thin film solar cells on transparent indium tin oxide (ITO) substrates. The CIGS absorber film was prepared by a spin-coating method, followed by two successive heat treatment processes. The first annealing process was on a hot plate at 300 °C for 30 min in air to remove carbon impurities in the film; this was followed by a sulfurization process at 500 °C in an H₂S(1%)/Ar environment to form a polycrystalline CIGS film. The absorber film with an optical band-gap of 1.52 eV and a thickness of about 1.1 µm was successfully synthesized. Because of the usage of a transparent glass substrate, a bifacial CIGS thin film device could be achieved; its power conversion efficiency was measured to be 6.64% and 0.96% for front and rear illumination, respectively, under standard irradiation conditions.