Wen Wang, Jie Xiong, Chang-fei Zhu, Guo-shun Jiang. Preparation of CuInS2 Thin Film Using Sulfides Nanoparticle Precursor Ink[J]. Chinese Journal of Chemical Physics , 2010, 23(4): 465-468. doi: 10.1088/1674-0068/23/04/465-468
Citation: Wen Wang, Jie Xiong, Chang-fei Zhu, Guo-shun Jiang. Preparation of CuInS2 Thin Film Using Sulfides Nanoparticle Precursor Ink[J]. Chinese Journal of Chemical Physics , 2010, 23(4): 465-468. doi: 10.1088/1674-0068/23/04/465-468

Preparation of CuInS2 Thin Film Using Sulfides Nanoparticle Precursor Ink

doi: 10.1088/1674-0068/23/04/465-468
Funds:  This work was supported by the Knowledge Inno-vation Project of the Chinese Academy of Sciences(No.KJCX2-YW-M11) and the Natural Science Re-search Project of Anhui Provincial Education Depart-ment (No.KJ2010A332).
  • Received Date: 2010-03-17
  • A low cost spin coating route of fabricating CuInS2 polycrystalline thin films by reactive sin-tering method was put forward. The ink for spin coating was optimized by pre-reducing the precursor powders in hydrogen, which turned the nanoparticle precursor powders from mixed sulfides into a mixture of CuInS2 and Cu-In metal alloys. The results of scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction, and Raman spectra showed that this optimization could highly improve the performance of CuInS2 polycrystalline thin films, including higher packing density, less impurity phases, and better quality. The en-ergy gap of optimized CuInS2 thin film was determined to be about 1.45 eV by absorption spectroscopy measurement.

     

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