The role of Mott-Schottky heterojunctions in PtCo-Cu2ZnGeS4 as counter electrodes in dye-sensitized solar cells.
Metastable wurtzstannite Cu2ZnGeS4 (CZGS) nanocrystals were synthesized via a hot-injection method and then used as matrixes to fabricate PtCo-CZGS heterostructured nano-particles. The formed Mott-Schottky heterojunctions in the hybrid nanocrystals promote the transfer of electrons from semiconducting CZGS to metallic PtCo, which accelerates the reduction of I3(-) to I(-) in dye-sensitized solar cells.
Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. zaijiantao@sjtu.edu.cn xfqian@sjtu.edu.cn.
Shoushuang
S
Huang
Qingquan
Q
He
Jiantao
J
Zai
Min
M
Wang
Xiaomin
X
Li
Bo
B
Li
Xuefeng
X
Qian