Triphenylamine-based dyes bearing functionalized 3,4-propylenedioxythiophene linkers with enhanced performance for dye-sensitized solar cells.
Introduction of modified 3,4-propylenedioxythiophene units into triphenylamine-based dyes is found to enhance light capturing, suppress dye aggregation, and remarkably retard charge recombination in dye-sensitized solar cells. Open circuit voltages of the as-synthesized dyes (approximately 800 mV) are much higher than that with a thiophene congener (720 mV) under similar conditions as a result of self-passivation benefiting from their three-dimensional branched structures.
Liang
Yanliang
Y
Institute of New Energy Material Chemistry and Key Laboratory of Advanced Micro/Nanomaterials and Batteries/Cells (Ministry of Education), Chemistry College, Nankai University, Tianjin 300071, People's Republic of China.
Peng
Bo
B
Liang
Jing
J
Tao
Zhanliang
Z
Chen
Jun
J