The effect of built-in field on interface exciton recombination and dissociation in an organic solar cell made of F16ZnPc/C60
(0) The free charge carriers in the device with the structure of ITO/ Fi6ZnPc/C60/Alq3/Ag are generated by exciton recombination at the F16ZnPc/C60 interface (J. Amer. Chem. Soc.132, 4554 (2010)) . By changing the direction of built-in electric field in the above device, the dominant of exciton recombination at the F16ZnPc/C60 interface can be replaced by exciton dissociation at the same interface. In this study, the Alq3/Ag is replaced by MoO3/AI, thus the direction of built-in electric field is reversed, pointing from ITO to Al. Accordingly, the dominant process is changed from the exciton recombination in ITO/ F16ZnPc/C60/Alq3/Ag to the exciton dissociation in ITO/ F16ZnPc/C60/ MoO3/AI. Our experimental results support above analysis, indicating the physical processes in an organic solar cell can be controlled by simply changing the built-in electric field.
built-in electric field organic solar cells exciton recombination exciton dissociation
Ting Zhang Junhua Huang Lijia Chen Fu He Guoxi Niu Jing Pan Zuhong Xiong Qunliang Song
Institute for Clean Energy & Advanced Materials and School of Physical Science & Technology, Southwest University, Chongqing 400715, P. R. China
国际会议
大连
英文
57
2012-05-28（万方平台首次上网日期，不代表论文的发表时间）