Photon upconversion in hetero-nanostructured photoanodes for enhanced near-infrared light harvesting

Photon upconversion in hetero-nanostructured photoanodes for enhanced near-infrared light harvesting

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 nanoparti...

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Bibliographic Details
Main Authors: Su, Liap Tat, Liu, Xiaogang, Tok, Alfred Iing Yoong, Karuturi, Siva Krishna, Luo, Jingshan, Liu, Lijun, Liu, Xinfeng, Guo, Jun, Sum, Tze Chien, Deng, Renren, Fan, Hong Jin
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2014
Subjects:
DRNTU::Engineering::Materials::Nanostructured materials
Online Access:https://hdl.handle.net/10356/102541
http://hdl.handle.net/10220/19087
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Institution: Nanyang Technological University
Language: English
Description
Summary: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.

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