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

被引：67

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

页码：3712 / 3717

页数：6

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