Acta Phys. -Chim. Sin. ›› 2013, Vol. 29 ›› Issue (01): 89-94.doi: 10.3866/PKU.WHXB201211092

• ELECTROCHEMISTRY AND NEW ENERGY • Previous Articles     Next Articles

Preparation of In2S3 Sensitized Solar Cells with Chemical Bath Deposition and Their Performance

ZHU Jun1, ZHANG Yao-Hong1,2, HU Lin-Lua1, DAI Song-Yuan1   

  1. 1 Key Lab of Novel Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, P. R. China;
    2 Key Lab of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
  • Received:2012-10-09 Revised:2012-11-07 Published:2012-12-14
  • Supported by:

    The project was supported by the National Key Basic Research Program of China (973) (2011CBA00700), National High Technology Research and Development Program of China (863) (2011AA050527), and National Natural Science Foundation of China (21003130, 21103197, 21173227, 21173228).

Abstract:

In2S3 is a stable semiconductor material with low toxicity. We prepared In2S3 sensitized solar cells using low-cost chemical bath deposition methodology. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM) were used to reveal the microstructure of the In2S3 sensitized TiO2 nanoporous films. Our results indicated that the deposition temperature has a remarkable effect on the morphology of In2S3 sensitized TiO2 films, which in turn affects the photovoltaic performance of devices. When the deposition temperature was low, the deposition reaction rate was slow, resulting in only minimal deposition. However, if the deposition temperature was increased too much, there was insufficient time for the In2S3 to be deposited within the internal pore structure of the TiO2 mesoporous films. The best homogeneous In2S3 sensitized TiO2 films were obtained with a deposition temperature of 40℃. At this temperature, the optical absorption of the resulting film was optimal and displayed the largest short circuit current density among the films examined. Moreover, the fill factor was also the best, approaching 65%. The best overall power conversion efficiency was 0.32%.

Key words: Indium sulfide, Sensitization, Solar cell, Chemical bath depostion, Recombination

MSC2000: 

  • O646