TY - JOUR
T1 - 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
AU - Cheng, Ping
AU - Wang, Wanjun
AU - Lan, Tian
AU - Chen, Ruihao
AU - Wang, Junfei
AU - Yu, Jianong
AU - Wu, Haixia
AU - Yang, Haijun
AU - Deng, Changsheng
AU - Guo, Shouwu
PY - 2010/5/20
Y1 - 2010/5/20
N2 - 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%).
AB - 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%).
KW - Charge-transfer resistance
KW - Diffusion coefficient
KW - Dye-sensitized solar cell
KW - Ionic liquid electrolyte
KW - Photovoltaic performance
UR - http://www.scopus.com/inward/record.url?scp=77952877621&partnerID=8YFLogxK
U2 - 10.1016/j.jphotochem.2010.04.009
DO - 10.1016/j.jphotochem.2010.04.009
M3 - Article
AN - SCOPUS:77952877621
SN - 1010-6030
VL - 212
SP - 147
EP - 152
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
IS - 2-3
ER -
