Novel Photoanode for Dye-Sensitized Solar Cells with Enhanced Light-Harvesting and Electron-Collection Efficiency

被引：38

作者：

Song, Weixing ^{[1
,2
]}

Gong, Yudong ^{[1
,2
]}

Tian, Jianjun ^{[3
]}

Cao, Guozhong ^{[4
]}

Zhao, Huabo ^{[1
,2
]}

Sun, Chunwen ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosyst, Beijing 100083, Peoples R China

[2] Natl Ctr Nanosci & Technol NCNST, Beijing 100083, Peoples R China

[3] Univ Sci & Technol Beijing, Adv Mat & Technol Inst, Beijing 100083, Peoples R China

[4] Univ Washington, Dept Mat & Engn, Seattle, WA 98195 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 21期

基金：

中国国家自然科学基金;

关键词：

flowerlike CeO2 microspheres; light harvesting; electron collection efficiency; atomic layer deposition; dye-sensitized solar cells; ATOMIC LAYER DEPOSITION; SPHERICAL TIO2; CONVERSION EFFICIENCY; PERFORMANCE; CEO2; SCATTERING; MICROSPHERES; NANOPARTICLES; PHOTOCURRENT; NETWORK;

D O I：

10.1021/acsami.6b02887

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A novel photoanode structure modified by porous flowerlike CeO2 microspheres as a scattering layer with a thin TiO2 film deposited by atomic layer deposition (ALD) is prepared to achieve a significantly enhanced performance of dye-sensitized solar cells (DSSCs). The light scattering capability of the photoanode with the porous CeO2 microsphere layer is considerably improved. The interconnection of particles and electrical contact between bilayer and conducting substrate is further enhanced by an ALD-deposited TiO2 film, which effectively reduces the electron recombination and facilitates electron transport and thus enhances the charge collection efficiency of DSSCs. As a result, the overall efficiency of the obtained TiO2-CeO2-based cells reaches 9.86%, which is 31% higher than that of the DSSCs with a conventional TiO2 photoanode.

引用

页码：13418 / 13425

页数：8

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