Efficiency Enhancement of Dye-Sensitized Solar Cells: Using Salt CuI as an Additive in an Ionic Liquid
CHEN Lie-Hang 1,2, XUE Bo-Fei 2, LIU Xi-Zhe2, LI Ke-Xin2, LUO Yan-Hong2, MENG Qing-Bo2, WANG Rui-Lin1, CHEN Li-Quan2
1 College of Materials Science and Engineering, Sichuan University, Chengdu 610064
2 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
Efficiency Enhancement of Dye-Sensitized Solar Cells: Using Salt CuI as an Additive in an Ionic Liquid
1 College of Materials Science and Engineering, Sichuan University, Chengdu 610064
2 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
摘要Energy conversion efficiency of the dye-sensitized solar cell is improved from 3.5% to 4.5% by adding a small amount of CuI into an ionic liquid electrolyte. It is found that other copper-I salts, for example, CuBr, have the same effect for the dye-sensitized solar cell. Experimental results show that no Cu 2+ ions exist in this electrolyte. It is suggested that this improvement is caused by the adsorption of Cu+ onto the TiO2 porous film.
Abstract：Energy conversion efficiency of the dye-sensitized solar cell is improved from 3.5% to 4.5% by adding a small amount of CuI into an ionic liquid electrolyte. It is found that other copper-I salts, for example, CuBr, have the same effect for the dye-sensitized solar cell. Experimental results show that no Cu 2+ ions exist in this electrolyte. It is suggested that this improvement is caused by the adsorption of Cu+ onto the TiO2 porous film.
CHEN Lie-Hang;XUE Bo-Fei;LIU Xi-Zhe;LI Ke-Xin;LUO Yan-Hong;MENG Qing-Bo;WANG Rui-Lin;CHEN Li-Quan. Efficiency Enhancement of Dye-Sensitized Solar Cells: Using Salt CuI as an Additive in an Ionic Liquid[J]. 中国物理快报, 2007, 24(2): 555-558.
CHEN Lie-Hang, XUE Bo-Fei, LIU Xi-Zhe, LI Ke-Xin, LUO Yan-Hong, MENG Qing-Bo, WANG Rui-Lin, CHEN Li-Quan. Efficiency Enhancement of Dye-Sensitized Solar Cells: Using Salt CuI as an Additive in an Ionic Liquid. Chin. Phys. Lett., 2007, 24(2): 555-558.
[1] O'Regan B and Gratzel M 1991 Nature 353 737 [2] Nazeeruddin M K, Kay A, Rodicio I, Humphry-Baker R, Mueller E,Liska P, Vlachopoulos N and Graetzel M 1993 J. Am. Chem. Soc. 115 6382 [3] Nazeeruddin M K, Pechy P, Renouard T, Zakeeruddin S M,Humphry-Baker R, Comte P, Liska P, Cevey L, Costa E, Shklover V,Spiccia L, Deacon G B, Bignozzi C A and Gratzel M 2001 J. Am.Chem. Soc. 123 1613 [4] Kubo W, Murakoshi K, Kitamura T, Yoshida S, Haruki M, Hanabusa K,Shirai H, Wada Y and Yanagida S 2001 J. Phys. Chem. B 10512809 [5] Hagen J, Schaffrath W, Otschik P, Fink R, Bacher A, Schmidt H W andHaarer D 1997 Synth. Met. 89 215 [6] Kruger J, Plass R, Cevey L, Piccirelli M and Gratzel M2001 Appl. Phys. Lett. 79 2085 [7] Kang M S, Kim J H, Kim Y J, Won J, Park N G and Kang Y S 2005 Chem. Commun. 889 [8] Katsaros G, Stergiopoulos T, Arabatzis I M, Papadokostaki K G andFalaras P 2002 J. Photochem. Photobiol. A 149 191 [9] Kumara G R A, Konno A, Shiratsuchi K, Tsukahara J and Tennakone K2002 Chem. Mater. 14 954 [10] Meng Q B, Takahashi K, Zhang X T, Sutanto I, Rao T N, Sato O,Fujishima A, Watanabe H, Nakamori T and Uragami M 2003 Langmuir 19 3572 [11] O'Regan B, Schwartz D T, Zakeeruddin S M and Gratzel M 2000 Adv. Mater. 12 1263 [12] Papageorgiou N, Athanassov Y, Armand M, Bonh$\hat {\rm o$te P,Pettersson H, Azam A, and Gratzel M 1996 J. Electrochem. Soc. 143 3099 [13] Shibata Y, Kato T, Kado T, Shiratuchi R, Takashima W, Kaneto K andHayase S 2003 Chem. Commun. 2730 [14] Wang P, Liu R, Wu X, Ma H, Cao X, Zhou P, Zhang J, Weng X, Zhang XL, Qi J, Zhou X and Weng L 2003 J. Am. Chem. Soc. 125 1116 [15] Liu X Z, Meng Q B, Gao C X, Xue B F, Wang H X, Chen L Q, Sato Oand Fujishima A 2004 Chin. Phys. Lett. 21 1384 [16] Liu X Z, Huang Z, Li K X, Li H, Li DM, Chen L Q, Meng Q B 2006 Chin. Phys. Lett. 23 2606 [17] Xue B F, Wang H X, Hu Y S, Li H, Wang Z X, Meng Q B, Huang X J,Chen L Q, Sato O and Fujishima A 2004 Chin. Phys. Lett. 21 1828 [18] Wang M, Zhang Q L, Weng Y X, Lin Y, Xiao X R 2006 Chin. Phys.Lett. 23 724 [19] Watson D F and Meyer G J 2004 Coord. Chem. Rev. 2481391 [20] Liu Y, Hagfeldt A, Xiao X R and Lindquist S E 1998 Sol.Energy Mat. Sol. Cells 55 267 [21] Kelly C A, Farzad F, Thompson D W, Stipkala J M and Meyer G J 1999 Langmuir 15 7047 [22] Wang P, Zakeeruddin S M, Moser J E and Gratzel M 2003 J.Phys. Chem. B 107 13280 [23] Tan S X, Zhai J, Wan M, Meng Q, Li Y, Jiang L and Zhu D 2004 J. Phys. Chem. B 108 18693 [24] Kubo W, Kambe S, Nakade S, Kitamura T, Hanabusa K, Wada Y andYanagida S 2003 J. Phys. Chem. B 107 4374 [25] Tennakone K, Kumara G R R A, Kottegoda I R M, Perera V P S, AponsuG M L P and Wijayantha K G U 1998 Sol. Energy Mat. Sol. Cells 55 283 [26] Tennakone K, Kumara G R R A, Kottegoda I R M, Wijayantha K GU and Perera V P S 1998 J. Phys. D: Appl. Phys. 31 1492 [27] Redmond G and Fitzmaurice D 1993 J. Phys. Chem. B 971426
2007, Vol. 24 
