摘要
The current-voltage and electroluminescence characteristics of dye-sensitized solar cells(DSSCs)are investigated under forward dc bias in a dark environment at room temperature.The results show that the presence of dyes can play an important role in improving device performance,and also produce defects at the TiO_(2)/dye/electrolyte interfaces,which dominate the electron-hole recombination process and become a limiting factor in obtaining high-efficiency DSSCs.The goodness of fit between measured and calculated data supports these conclusions.
基金
Supported by the National Natural Science Foundation of China under Grant Nos 61072131 and 50962011
the Natural Science Foundation of Jiangxi Province under Grant No 20132BAB202003
the Opened Fund of the State Key Laboratory on Integrated Optoelectronics(No IOSKL2012KF14)
the Open Fund of the Key Laboratory of Nondestructive Testing(Ministry of Education,Nanchang Hangkong University)under Grant No ZD201029005.