1241949-16-5Relevant articles and documents
Low-cost dyes based on methylthiophene for high-performance dye-sensitized solar cells
Tian, Zongfang,Huang, Meihua,Zhao, Bin,Huang, Hui,Feng, Xiaoming,Nie, Yujuan,Shen, Ping,Tan, Songting
experimental part, p. 181 - 187 (2010/07/15)
Three donor-acceptor, π-conjugated (D-π-A) dyes containing methylthiophene or vinylene methylthiophene as π-conjugated spacer were utilised in dye-sensitized nanocrystalline TiO2 solar cells. The relationship between the structure of the dyes and their photophysical, electrochemical and photovoltaic properties was investigated systematically. The vinyl unit, introduced as the π-conjugated spacer, leads to unfavorable back-electron transfer and decrease of the open-circuit voltage. A dye-sensitized solar cell based on 2-cyano-3-(5-(4-(diphenylamino)phenyl)-4-methylthiophenyl-2-yl) acrylic acid displayed the most efficient solar-to-electricity conversion efficiency of the dyes with a maximum η value of 8.27% (Voc?=?0.72?V, Jsc?=?15.76?mA?cm-2, FF?=?0.73) under simulated AM 1.5 G solar irradiation (100?mW?cm-2).