Potassium-Doped Zinc Oxide as Photocathode Material in Dye-Sensitized Solar Cells

被引：34

作者：

Bai, Jie ^{[1
]}

Xu, Xiaobao ^{[1
]}

Xu, Ling ^{[2
]}

Cui, Jin ^{[1
]}

Huang, Dekang ^{[2
]}

Chen, Wei ^{[1
]}

Cheng, Yibing ^{[3
]}

Shen, Yan ^{[2
]}

Wang, Mingkui ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan Natl Lab Optoelect, Michael Gratzel Ctr Mesoscop Solar Cells, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[3] Monash Univ, Dept Mat Engn, Melbourne, Vic 3800, Australia

来源：

CHEMSUSCHEM | 2013年 / 6卷 / 04期

关键词：

doping; dyes; nanoparticles; photovoltaics; semiconductors; CHARGE-TRANSFER; ZNO; SEMICONDUCTOR; ELECTROLYTE; NANOSTRUCTURES; NANOPARTICLES; PERFORMANCE; EFFICIENCY; FILM;

D O I：

10.1002/cssc.201200935

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

ZnO nanoparticles are doped with K and applied in p-type dye-sensitized solar cells (DSCs). The microstructure and dynamics of hole transportation and recombination are investigated. The morphology of the K-doped ZnO nanoparticles shows a homogeneous distribution with sizes in the range 3040nm. When applied in p-type DSCs in combination with C343 as sensitizer, the K-doped ZnO nanoparticles achieve a photovoltaic power conversion efficiency of 0.012% at full-intensity sunlight. A further study on the device by transient photovoltage/photocurrent decay measurements shows that the K-doped ZnO nanoparticles have an appreciable hole diffusion coefficient (ca. 106cm2s1). Compared to the widely used p-type NiO nanoparticles, this advantage is crucial for further improving the efficiency of p-type DSCs.

引用

页码：622 / 629

页数：8

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