Record number :
1620606
Title of article :
Electrochemical characterization and photovoltaic performance of the binary ionic liquid electrolyte of 1-methyl-3-propylimidazolium iodide and 1-ethyl-3-methylimidazolium tetrafluoroborate for dye-sensitized solar cells
Author/Authors :
Cheng، نويسنده , , Ping and Wang، نويسنده , , Wanjun and Lan، نويسنده , , Tian and Chen، نويسنده , , Ruihao and Wang، نويسنده , , Junfei and Yu، نويسنده , , Jianong and Wu، نويسنده , , Haixia and Yang، نويسنده , , Haijun and Deng، نويسنده , , Changsheng and Guo، نويسنده , , Shouwu، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
6
From page :
147
To page :
152
Abstract :
Determination of triiodide diffusion coefficient, charge-transfer resistance and photovoltaic performance of the binary ionic liquid electrolyte of 1-methyl-3-propylimidazolium iodide (MPII) and 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIMBF4) for dye-sensitized solar cells (DSSCs) were performed at varying volume ratios of MPII/EMIMBF4. Compared to pure MPII ionic liquid, the addition of EMIMBF4 not only increased triiodide diffusion coefficient, but also decreased charge-transfer resistance at Pt/electrolyte interface, leading to the notably improved photovoltaic performance of DSSC. The highest photoelectric conversion efficiency of 4.99% was obtained under light intensity of 100 mW/cm2 for the DSSC with the binary MPII/EMIMBF4 ionic liquid electrolyte when the volume ratio of MPII/EMIMBF4 was 50/50, which was much higher than that of pure MPII ionic liquid electrolyte (2.6%).
Keywords :
Photovoltaic performance , Ionic liquid electrolyte , dye-sensitized solar cell , Diffusion coefficient , Charge-transfer resistance
Journal title :
Journal of Photochemistry and Photobiology:A:Chemistry
Journal title :
Journal of Photochemistry and Photobiology:A:Chemistry
Serial Year :
2010
Link To Document :
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