DDQ as an effective p-type dopant for the hole-transport material X1 and its application in stable solid-state dye-sensitized solar cells  

作　　者：Yanyun Zhang Xichuan Yang Weihan Wang Xiuna Wang Licheng Sun 

机构地区：[1]State Key Laboratory of Fine Chemicals,Dalian University of Technology (DUT) [2]Department of Chemistry,School of Chemical Science and Engineering,KTH Royal Institute of Technology

出　　处：《Journal of Energy Chemistry》2018年第2期413-418,共6页能源化学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (51661135021, 21606039, 21507008, 91233201, 21276044);supported by the National Natural Science Foundation of China

摘　　要：X1（Me O-TPD） is an inexpensive and easily synthesized π-conjugated molecule that has been used as a hole-transport material（HTM） in solid-state dye-sensitized solar cells（ssDSSCs）, achieving relatively high efficiency. In this paper, we characterize the physicochemical properties of 2,3-dichloro-5,6-dicyano-1,4-benzoquinone（DDQ） and show that it is a promising p-dopant in a spin-coating solution with X1 as the HTM. The doped ssDSSCs showed an increase in short-circuit current density from 5.38 mA cm-2 to7.39 mA cm-2, and their overall power conversion efficiency increased from 2.9% to 4.3%. Also, ssDSSCs with DDQ-doped X1 were more stable than the undoped samples, demonstrating that DDQ can act as a p-type dopant in X1 as an HTM for highly efficient, stable ssDSSCs.X1（Me O-TPD） is an inexpensive and easily synthesized π-conjugated molecule that has been used as a hole-transport material（HTM） in solid-state dye-sensitized solar cells（ssDSSCs）, achieving relatively high efficiency. In this paper, we characterize the physicochemical properties of 2,3-dichloro-5,6-dicyano-1,4-benzoquinone（DDQ） and show that it is a promising p-dopant in a spin-coating solution with X1 as the HTM. The doped ssDSSCs showed an increase in short-circuit current density from 5.38 mA cm-2 to7.39 mA cm-2, and their overall power conversion efficiency increased from 2.9% to 4.3%. Also, ssDSSCs with DDQ-doped X1 were more stable than the undoped samples, demonstrating that DDQ can act as a p-type dopant in X1 as an HTM for highly efficient, stable ssDSSCs.

关 键 词：P-TYPE DOPANT XI DDQ ssDSSCs 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TM914.42