Rare Earth - Activated Y2O3 Phosphors with Novel Morphology for Dye-Sensitized Solar Cells

被引：6

作者：

Zhao, Bingxin ^{[1
,2
]}

Wang, Jinshu ^{[1
]}

Li, Hongyi ^{[1
]}

Jia, Xinjian ^{[1
]}

Dong, Liran ^{[1
]}

Den Engelsen, Daniel ^{[1
]}

机构：

[1] Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Beijing 100124, Peoples R China

[2] Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA

来源：

CHEMISTRYSELECT | 2016年 / 1卷 / 06期

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

rare earth dopants; solvothermal synthesis; self-assembly; photo-voltaics; efficiency; YTTRIUM-OXIDE; LUMINESCENCE PROPERTIES; PHOTOLUMINESCENCE; NANOPARTICLES; NANOCRYSTALS; EFFICIENCY; SPECTROSCOPY; PERFORMANCE; GREEN; LIGHT;

D O I：

10.1002/slct.201600137

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanosized Y2O3: RE3+ (RE=Eu and Er) particles with the cubic crystal structure and a novel morphology were prepared via a low temperature process to be applied as near ultraviolet and near infrared light-harvesting materials in dye-sensitized solar cells (DSSCs). These phosphor particles consisted of triangular prisms that were built from nanosheets by a self-assembly process, leading to neatly-aligned structures. The photoluminescence of the phosphor films was characteristic for Eu3+ and Er3+ dopants in cubic Y2O3 and matched the spectral absorption of the selected sensitizers of the DSSCs used in this study quite well. It was found that Y2O3: Er luminescence films in DSSCs increased the energy conversion efficiency by 13.6% in comparison to reference DSSCs coated with a non-doped Y-2 O-3 film. On the other hand, DSSCs with Y2O3: Eu luminescence films did not show increased photovolaic efficiency.

引用

页码：1136 / 1139

页数：4

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