Photon Upconversion in Hetero-nanostructured Photoanodes for Enhanced Near-Infrared Light Harvesting

被引：122
|
作者：
Su, Liap Tat [1 ]
Karuturi, Siva Krishna [1 ]
Luo, Jingshan [2 ]
Liu, Lijun [1 ]
Liu, Xinfeng [2 ,3 ,4 ]
Guo, Jun [1 ]
Sum, Tze Chien [2 ]
Deng, Renren [3 ]
Fan, Hong Jin [2 ]
Liu, Xiaogang [2 ,3 ,4 ]
Tok, Alfred Iing Yoong [1 ]
机构：
[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
[2] Nanyang Technol Univ, Div Phys & Appl Phys, Singapore 639798, Singapore
[3] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore
[4] Inst Mat Res & Engn, Singapore 117602, Singapore
来源：
ADVANCED MATERIALS | 2013年 / 25卷 / 11期
基金：
新加坡国家研究基金会;
关键词：
SOLAR-CELL EFFICIENCY; BROAD-BAND; NANOPARTICLES; NANOCRYSTALS; LUMINESCENCE; PHOTOLUMINESCENCE; ARCHITECTURES; FLUORESCENCE; MODULATION; EVOLUTION;
D O I：
10.1002/adma.201204353
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A hetero-nanostructured photoanode with enhanced near-infrared light harvesting is developed for photo-electrochemical cells. By spatially coating upconversion nanoparticles and quantum dot photosensitizers onto TiO2 inverse opal, this architecture allows direct irradiation of upconversion nanoparticles to emit visible light that excites quantum dots for charge separation. Electrons are injected into TiO2 with minimal carrier losses due to continuous electron conducting interface.
引用
收藏
页码：1603 / 1607
页数：5
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