Effect of heat treatment on photoelectrochemical performance of hydrothermally synthesised Ag2S/ZnO nanorods arrays

Low temperature hydrothermal method was used to produce a large surface area ZnO NRs on conductive glass. The same method was used to fabricate a photoelectrode of Ag2S quantum dots onto the nanorod arrays. Ag2S QDs/ZnO NRAs heterostructure was employed as photoanode in a standard 3-electrodes photo...

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Main Authors: Holi, Araa Mebdir, Zainal, Zulkarnain, Ayal, Asmaa Kadim, Chang, Sook Keng, Lim, Hong Ngee, Talib, Zainal Abidin, Yap, Chi Chin
Format: Article
Language:English
Published: Elsevier 2018
Online Access:http://psasir.upm.edu.my/id/eprint/72418/1/Effect%20of%20heat%20treatment%20on%20photoelectrochemical%20performance.pdf
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author Holi, Araa Mebdir
Zainal, Zulkarnain
Ayal, Asmaa Kadim
Chang, Sook Keng
Lim, Hong Ngee
Talib, Zainal Abidin
Yap, Chi Chin
author_facet Holi, Araa Mebdir
Zainal, Zulkarnain
Ayal, Asmaa Kadim
Chang, Sook Keng
Lim, Hong Ngee
Talib, Zainal Abidin
Yap, Chi Chin
author_sort Holi, Araa Mebdir
collection UPM
description Low temperature hydrothermal method was used to produce a large surface area ZnO NRs on conductive glass. The same method was used to fabricate a photoelectrode of Ag2S quantum dots onto the nanorod arrays. Ag2S QDs/ZnO NRAs heterostructure was employed as photoanode in a standard 3-electrodes photoelectrochemical cell. A significant enhancement in the photoelectrochemical performance was observed for the Ag2S QDs/ZnO upon heat treatment 400 °C which displayed an impressive photoconversion efficiency of 4.08% by achieving ∼10-times higher compared to bare ZnO NRAs. This enhancement was attributed to the improved morphological structure, crystallinity and optical properties of the synthesised heterostructures.
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spelling upm.eprints-724182020-06-04T04:32:34Z http://psasir.upm.edu.my/id/eprint/72418/ Effect of heat treatment on photoelectrochemical performance of hydrothermally synthesised Ag2S/ZnO nanorods arrays Holi, Araa Mebdir Zainal, Zulkarnain Ayal, Asmaa Kadim Chang, Sook Keng Lim, Hong Ngee Talib, Zainal Abidin Yap, Chi Chin Low temperature hydrothermal method was used to produce a large surface area ZnO NRs on conductive glass. The same method was used to fabricate a photoelectrode of Ag2S quantum dots onto the nanorod arrays. Ag2S QDs/ZnO NRAs heterostructure was employed as photoanode in a standard 3-electrodes photoelectrochemical cell. A significant enhancement in the photoelectrochemical performance was observed for the Ag2S QDs/ZnO upon heat treatment 400 °C which displayed an impressive photoconversion efficiency of 4.08% by achieving ∼10-times higher compared to bare ZnO NRAs. This enhancement was attributed to the improved morphological structure, crystallinity and optical properties of the synthesised heterostructures. Elsevier 2018-10 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72418/1/Effect%20of%20heat%20treatment%20on%20photoelectrochemical%20performance.pdf Holi, Araa Mebdir and Zainal, Zulkarnain and Ayal, Asmaa Kadim and Chang, Sook Keng and Lim, Hong Ngee and Talib, Zainal Abidin and Yap, Chi Chin (2018) Effect of heat treatment on photoelectrochemical performance of hydrothermally synthesised Ag2S/ZnO nanorods arrays. Chemical Physics Letters, 710. 100 - 107. ISSN 0009-2614; ESSN: 1873-4448 https://www.sciencedirect.com/science/article/pii/S0009261418307024 10.1016/j.cplett.2018.08.069
spellingShingle Holi, Araa Mebdir
Zainal, Zulkarnain
Ayal, Asmaa Kadim
Chang, Sook Keng
Lim, Hong Ngee
Talib, Zainal Abidin
Yap, Chi Chin
Effect of heat treatment on photoelectrochemical performance of hydrothermally synthesised Ag2S/ZnO nanorods arrays
title Effect of heat treatment on photoelectrochemical performance of hydrothermally synthesised Ag2S/ZnO nanorods arrays
title_full Effect of heat treatment on photoelectrochemical performance of hydrothermally synthesised Ag2S/ZnO nanorods arrays
title_fullStr Effect of heat treatment on photoelectrochemical performance of hydrothermally synthesised Ag2S/ZnO nanorods arrays
title_full_unstemmed Effect of heat treatment on photoelectrochemical performance of hydrothermally synthesised Ag2S/ZnO nanorods arrays
title_short Effect of heat treatment on photoelectrochemical performance of hydrothermally synthesised Ag2S/ZnO nanorods arrays
title_sort effect of heat treatment on photoelectrochemical performance of hydrothermally synthesised ag2s zno nanorods arrays
url http://psasir.upm.edu.my/id/eprint/72418/1/Effect%20of%20heat%20treatment%20on%20photoelectrochemical%20performance.pdf
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