Low resistance dye-sensitized solar cells based on all-titanium substrates using wires and sheets

被引:54
作者
Wang, Hai [1 ,2 ]
Liu, Yong [1 ]
Huang, Hong [3 ]
Zhong, Minyi [1 ]
Shen, Hui [1 ]
Wang, Yuanhao [4 ]
Yang, Hongxing [4 ]
机构
[1] Sun Yat Sen Univ, Sch Phys & Engn, Inst Solar Energy Syst, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
[2] Guilin Univ Technol, Dept Chem & Mat Engn, Minist Educ, Key Lab Nonferrous Mat & New Proc Technol, Guilin 541004, Peoples R China
[3] Sun Yat Sen Univ, Instrumental Anal & Res Ctr, Guangzhou 510275, Guangdong, Peoples R China
[4] Hong Kong Polytech Univ, Dept Bldg Serv Engn, Kowloon, Hong Kong, Peoples R China
基金
中国国家自然科学基金;
关键词
Dye-sensitized solar cell; All-titanium substrate; TiO2 thin films; Sheet resistance; Counter electrode; LOW-COST; EFFICIENCY;
D O I
10.1016/j.apsusc.2009.06.085
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Low resistance dye-sensitized solar cells (DSSCs) based on all-titanium substrates were proposed in this paper. To minimize the internal resistance of DSSCs, the titanium wires and titanium sheets were used as the substrates of the photoanode and the counter electrode, respectively. Compared with the FTO substrate, titanium wires could absorb much diffused light by back reflection since the reflectivity in the titanium sheet was highly increased up to 53.12%. Furthermore, the transmittance of the front cover was increased by 13.2% using the super white glass instead of FTO substrate. The thickness of TiO2 thin film coated on titanium wire was optimized to achieve a high cell performance. The efficiency of 5.6% for the cell was obtained with a J(SC) of 15.41 mA cm (2), V-OC of 0.59 V, and FF of 0.62. The results showed that the titanium-based DSSCs had superiority for producing the large-scale DSSCs without metal grid line. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:9020 / 9025
页数:6
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