SUN Hao-yu,LI Peng-hai,XUE Yu-ming,QIAO Zai-xiang,LIU Sai.Effect of MoSe2 on the performance of CIGS solar cells[J].Optoelectronics Letters,2019,15(6):428-434
Effect of MoSe2 on the performance of CIGS solar cells
Author NameAffiliation
SUN Hao-yu College of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China 
LI Peng-hai College of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China 
XUE Yu-ming College of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China 
QIAO Zai-xiang College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, China 
LIU Sai College of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China 
Abstract:
      A CuIn1-xGaxSe2 (CIGS) thin film solar cell model with MoSe2 transition layer was established, using SCAPS-1D software. The influence of MoSe2 interface layer formed between absorption layer CIGS and the back contact Mo on the solar cell performance was investigated.By changing the doping concentration,thickness and bandgap of MoSe2 layer, it is found that the MoSe2 and the variation of parameters have a significant effect on the electrical characteristics and photovoltaic parameters of CIGS thin film solar cells. Based on the energy band, the interfaces of Mo/MoSe2 and MoSe2/CIGS are analyzed. It is considered that Mo/MoSe2 is a Schottky contact, MoSe2/CIGS is an ohmic contact. When suitable parameters of MoSe2 layer are formed into the interface, it will provide a new path for designing CIGS solar cells with thinner absorption layer.
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