Carbon quantum dots coated BiVO4 inverse opals for enhanced photoelectrochemical hydrogen generation

Carbon quantum dots coated BiVO4 inverse opals for enhanced photoelectrochemical hydrogen generation

Carbon quantum dots (CQDs) coated BiVO4 inverse opal (io-BiVO4) structure that shows dramatic improvement of photoelectrochemical hydrogen generation has been fabricated using electrodeposition with a template. The io-BiVO4 maximizes photon trapping through slow light effect, while maintaining adequ...

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Main Authors: Nan, Feng, Kang, Zhenhui, Wang, Junling, Shen, Mingrong, Fang, Liang
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2015
Subjects:
DRNTU::Science::Physics::Atomic physics::Quantum theory
Online Access:https://hdl.handle.net/10356/107391
http://hdl.handle.net/10220/25538
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1073912023-07-14T15:56:42Z Carbon quantum dots coated BiVO4 inverse opals for enhanced photoelectrochemical hydrogen generation Nan, Feng Kang, Zhenhui Wang, Junling Shen, Mingrong Fang, Liang School of Materials Science & Engineering DRNTU::Science::Physics::Atomic physics::Quantum theory Carbon quantum dots (CQDs) coated BiVO4 inverse opal (io-BiVO4) structure that shows dramatic improvement of photoelectrochemical hydrogen generation has been fabricated using electrodeposition with a template. The io-BiVO4 maximizes photon trapping through slow light effect, while maintaining adequate surface area for effective redox reactions. CQDs are then incorporated to the io-BiVO4 to further improve the photoconversion efficiency. Due to the strong visible light absorption property of CQDs and enhanced separation of the photoexcited electrons, the CQDs coated io-BiVO4 exhibit a maximum photo-to-hydrogen conversion efficiency of 0.35%, which is 6 times higher than that of the pure BiVO4 thin films. This work is a good example of designing composite photoelectrode by combining quantum dots and photonic crystal. Published version 2015-05-14T04:43:27Z 2019-12-06T22:29:57Z 2015-05-14T04:43:27Z 2019-12-06T22:29:57Z 2015 2015 Journal Article Nan, F., Kang, Z., Wang, J., Shen, M., & Fang, L. (2015). Carbon quantum dots coated BiVO4 inverse opals for enhanced photoelectrochemical hydrogen generation. Applied physics letters, 106(15). https://hdl.handle.net/10356/107391 http://hdl.handle.net/10220/25538 10.1063/1.4918290 en Applied physics letters © 2015 AIP Publishing LLC. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of AIP Publishing LLC.The paper can be found at the following official DOI: [http://dx.doi.org/10.1063/1.4918290]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 6 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Science::Physics::Atomic physics::Quantum theory
spellingShingle DRNTU::Science::Physics::Atomic physics::Quantum theory
Nan, Feng
Kang, Zhenhui
Wang, Junling
Shen, Mingrong
Fang, Liang
Carbon quantum dots coated BiVO4 inverse opals for enhanced photoelectrochemical hydrogen generation
description Carbon quantum dots (CQDs) coated BiVO4 inverse opal (io-BiVO4) structure that shows dramatic improvement of photoelectrochemical hydrogen generation has been fabricated using electrodeposition with a template. The io-BiVO4 maximizes photon trapping through slow light effect, while maintaining adequate surface area for effective redox reactions. CQDs are then incorporated to the io-BiVO4 to further improve the photoconversion efficiency. Due to the strong visible light absorption property of CQDs and enhanced separation of the photoexcited electrons, the CQDs coated io-BiVO4 exhibit a maximum photo-to-hydrogen conversion efficiency of 0.35%, which is 6 times higher than that of the pure BiVO4 thin films. This work is a good example of designing composite photoelectrode by combining quantum dots and photonic crystal.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Nan, Feng
Kang, Zhenhui
Wang, Junling
Shen, Mingrong
Fang, Liang
format Article
author Nan, Feng
Kang, Zhenhui
Wang, Junling
Shen, Mingrong
Fang, Liang
author_sort Nan, Feng
title Carbon quantum dots coated BiVO4 inverse opals for enhanced photoelectrochemical hydrogen generation
title_short Carbon quantum dots coated BiVO4 inverse opals for enhanced photoelectrochemical hydrogen generation
title_full Carbon quantum dots coated BiVO4 inverse opals for enhanced photoelectrochemical hydrogen generation
title_fullStr Carbon quantum dots coated BiVO4 inverse opals for enhanced photoelectrochemical hydrogen generation
title_full_unstemmed Carbon quantum dots coated BiVO4 inverse opals for enhanced photoelectrochemical hydrogen generation
title_sort carbon quantum dots coated bivo4 inverse opals for enhanced photoelectrochemical hydrogen generation
publishDate 2015
url https://hdl.handle.net/10356/107391
http://hdl.handle.net/10220/25538
_version_ 1772826778505576448

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