| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
|
|
|
|
The Electric Mechanism of Surface Pretreatments for Dye-Sensitized Solar Cells Based on Internal Equivalent Resistance Analysis |
| XU Wei-Wei1,2, HU Lin-Hua2, LUO Xiang-Dong1, LIU Pei-Sheng1, DAI Song-Yuan2** |
1Jiangsu Provincial Key Lab of ASIC Design, Nantong University, Nantong 226019
2Division of Solar Energy Materials and Engineering, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031
|
|
| Cite this article: |
|
XU Wei-Wei, HU Lin-Hua, LUO Xiang-Dong et al 2012 Chin. Phys. Lett. 29 018401 |
|
|
|
|
Abstract Based on the optimization of dye-sensitized solar cell (DSC) photoelectrodes pretreated with different methods such as electrodeposition, spin-coating and TiCl4 pretreatment, theoretical calculations are carried out to interpret the internal electric mechanism. The numerical values, including the series resistance Rs and the shunt resistance Rsh corresponding to the equivalent circuit model, are well evaluated and confirm that the DSC has good performance with a high Rsh and a low Rs due to good electrical contact and a low charge recombination after the different modifications. The I–V curves are fitted in the case without series resistance, and account for the role of Rs in the output characteristics. It is found that when Rs tends to the infinitesimal, the short−circuit current Isc, the open−circuit voltage Voc and the fill factor can be improved by almost 0.8–1.4, 2.9 and 2.1–6.8%, respectively.
|
| Keywords:
84.60.Jt
68.55.-a
72.20.Jv
|
|
|
Received: 08 August 2011
Published: 07 February 2012
|
|
| PACS: |
84.60.Jt
|
(Photoelectric conversion)
|
| |
68.55.-a
|
(Thin film structure and morphology)
|
| |
72.20.Jv
|
(Charge carriers: generation, recombination, lifetime, and trapping)
|
|
|
|
|
|
[1] O'Regan B and Grätzel M 1991 Nature 353 737
[2] Bach U et al 1998 Nature 395 583
[3] Grätzel M 2004 J. Photochem. Photobiol. A 164 3
[4] Nazeeruddin M K et al 2005 J. Am. Chem. Soc. 127 16835
[5] Liu X Z et al 2006 Chin. Phys. Lett. 23 2606
[6] Dai S Y et al 2005 Sol. Energy Mater. Sol. Cells 85 447
[7] Cass M J et al 2005 J. Phys. Chem. B 109 5100
[8] Hu L H et al 2007 J. Phys. Chem. B 111 358
[9] Södergren S et al 1994 J. Phys. Chem. 98 5552
[10] Van de Lagemaat J and Frank A J 2000 J. Phys. Chem. B 104 4292
[11] Ferber J and Luther J 2001 J. Phys. Chem. B 105 4895
[12] Fabregat Santiago F et al 2003 J. Phys. Chem. B 107 758
[13] Bisquert J and Vikhrenko V S 2004 J. Phys. Chem. B 108 2313
[14] Xu W W et al 2010 Chin. Phys. Lett. 27 038202
[15] Ferber J et al 1998 Sol. Energy Mater. Sol. Cells 53 29
[16] Bay L and West K 2005 Sol. Energy Mater. Sol. Cells 87 613
[17] Ouennoughi Z and Chegaar M 1999 Solid State Electron. 43 1985
[18] Nishioka K et al 2003 Jpn. J. Appl. Phys. 42 7175
[19] Murayama M and Mori T 2008 Thin Solid Films 516 2716
[20] Penny M et al 2008 Sol. Energy Mater. Sol. Cells 92 24
[21] Hu L H et al 2003 Acta Phys. Sin. 52 2135
[22] Xu W W et al 2005 Acta Phys. Sin. 54 5943
[23] Zeng L Y et al 2004 Chin. Phys. Lett. 21 493
[24] Nazeeruddin M K et al 1993 J. Am. Chem. Soc. 115 6382
[25] Stathatos E et al 2003 Chem. Mater. 15 1825
[26] Koide N et al 2006 J. Photochem. and Photobiol. A 182 296
[27] Han L et al 2006 C. R. Chimie 9 645
[28] Murayama M and Mori T 2006 Thin Solid Films 509 123
[29] Tian H M et al 2009 Solar Energy 83 715
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
