Improved Utilization of Photogenerated Charge Using Fluorine-Doped TiO2 Hollow Spheres Scattering Layer in Dye-Sensitized Solar Cells

被引：68
作者：
Song, Ling [1 ,2 ,3 ]
Bin Yang, Hong [1 ,2 ]
Wang, Xiu
Khoo, Si Yun [1 ,2 ]
Wong, C. C.
Liu, Xue-Wei [3 ]
Li, Chang Ming [2 ,4 ,5 ]
机构：
[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
[2] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637457, Singapore
[3] Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 637371, Singapore
[4] Southwest Univ, Inst Clean Energy & Adv Mat, Chongqing 400715, Peoples R China
[5] Chongqing Key Lab Adv Mat & Technol Clean Energie, Chongqing 400715, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2012年 / 4卷 / 07期
基金：
新加坡国家研究基金会;
关键词：
dye sensitized solar cells; scattering layer; electron transport; fluorine-doping; charge recombination; AC impedance; ELECTRON-TRANSPORT; BACK-REACTION; THIN-FILM; PERFORMANCE; PHOTOANODE; EFFICIENCY; ARRAYS; RECOMBINATION; FABRICATION; COLLECTION;
D O I：
10.1021/am300801f
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We demonstrate a strategy to improve utilization of photogenerated charge in dye sensitized solar cells (DSSCs) with fluorine doped TiO2 hollow spheres as the scattering layer, which improves the fill factor from 69.4% to 74.1% and in turn results in an overall efficiency of photoanode increased by 13% (from 5.62% to 6.31%) in comparison with the control device using undoped TiO2 hollow spheres. It is proposed that the fluorine-doping improves the charge transfer and inhibition of charge recombination to enhance the utilization of the photogenerated charge in the photoanode.
引用
收藏
页码：3712 / 3717
页数：6
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