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Chemcial Industry and Engineering 2017, Vol. 34 Issue (4) :50-54,95    DOI: 10.13353/j.issn.1004.9533.20151101
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Two-Dimensional Cupric Bromide Perovskites for Solid Solar Cells
Wang Tianyang1,2, Liu Dongzhi1, Li Wei1,2, Zhou Xueqin1,2
1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2. Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China

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Abstract 

Two two-dimensional organic-inorganic cupric bromide perovskites (p-F-C6H5C2H4-NH3)2-CuBr4(P1)and (CH3(CH2)3NH3)2-CuBr4(P2)were prepared and applied to solid solar cells as novel hole transport materials (HTMs). The P1 and P2 films were characterized by UV/Vis、XRD and SEM. The photocurrent measurement and electrochemical impedance spectroscopy (EIS) were performed for devices based on P1 or P2. The effect of the additions of Li-TFSI and TBP to P1 and P2 was also researched. The results show that the additions of Li-TFSI and TBP can improve the hole conductivities of P1 and P2 and their charge transfer abilities. The P1 and P2 based devices with additives of Li-TFSI and TBP achieve 0.50% and 0.56% of PCE, respectively.

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Wang Tianyang
Liu Dongzhi
Li Wei
Zhou Xueqin
Keywordstwo-dimensional organic-inorganic perovskites;   hole transport materials;   solid solar cells;   impedance;   hole conductivity     
Received 2015-06-08;
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Wang Tianyang, Liu Dongzhi, Li Wei, Zhou Xueqin.Two-Dimensional Cupric Bromide Perovskites for Solid Solar Cells[J]  Chemcial Industry and Engineering, 2017,V34(4): 50-54,95
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