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Electronic Structure Engineering of Cu(2)O Film/ZnO Nanorods Array All-Oxide p-n Heterostructure for Enhanced Photoelectrochemical Property and Self-powered Biosensing Application
We have engineered the electronic structure at the interface between Cu(2)O and ZnO nanorods (NRs) array, through adjusting the carrier concentration of Cu(2)O. The electrodeposition of Cu(2)O at pH 11 acquired the highest carrier concentration, resulting in the largest interfacial electric field be...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4298735/ https://www.ncbi.nlm.nih.gov/pubmed/25600940 http://dx.doi.org/10.1038/srep07882 |
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author | Kang, Zhuo Yan, Xiaoqin Wang, Yunfei Bai, Zhiming Liu, Yichong Zhang, Zheng Lin, Pei Zhang, Xiaohui Yuan, Haoge Zhang, Xueji Zhang, Yue |
author_facet | Kang, Zhuo Yan, Xiaoqin Wang, Yunfei Bai, Zhiming Liu, Yichong Zhang, Zheng Lin, Pei Zhang, Xiaohui Yuan, Haoge Zhang, Xueji Zhang, Yue |
author_sort | Kang, Zhuo |
collection | PubMed |
description | We have engineered the electronic structure at the interface between Cu(2)O and ZnO nanorods (NRs) array, through adjusting the carrier concentration of Cu(2)O. The electrodeposition of Cu(2)O at pH 11 acquired the highest carrier concentration, resulting in the largest interfacial electric field between Cu(2)O and ZnO, which finally led to the highest separation efficiency of photogenerated charge carriers. The optimized Cu(2)O/ZnO NRs array p-n heterostructures exhibited enhanced PEC performance, such as elevated photocurrent and photoconversion efficiency, as well as excellent sensing performance for the sensitive detection of glutathione (GSH) in PBS buffer even at applied bias of 0 V which made the device self-powered. Besides, the favorable selectivity, high reproducibility and extremely wide detection range, make such heterostructure a promising candidate for PEC biosensing applications, probably for the extended field of PEC water splitting or other solar photovoltaic beacons. |
format | Online Article Text |
id | pubmed-4298735 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-42987352015-02-03 Electronic Structure Engineering of Cu(2)O Film/ZnO Nanorods Array All-Oxide p-n Heterostructure for Enhanced Photoelectrochemical Property and Self-powered Biosensing Application Kang, Zhuo Yan, Xiaoqin Wang, Yunfei Bai, Zhiming Liu, Yichong Zhang, Zheng Lin, Pei Zhang, Xiaohui Yuan, Haoge Zhang, Xueji Zhang, Yue Sci Rep Article We have engineered the electronic structure at the interface between Cu(2)O and ZnO nanorods (NRs) array, through adjusting the carrier concentration of Cu(2)O. The electrodeposition of Cu(2)O at pH 11 acquired the highest carrier concentration, resulting in the largest interfacial electric field between Cu(2)O and ZnO, which finally led to the highest separation efficiency of photogenerated charge carriers. The optimized Cu(2)O/ZnO NRs array p-n heterostructures exhibited enhanced PEC performance, such as elevated photocurrent and photoconversion efficiency, as well as excellent sensing performance for the sensitive detection of glutathione (GSH) in PBS buffer even at applied bias of 0 V which made the device self-powered. Besides, the favorable selectivity, high reproducibility and extremely wide detection range, make such heterostructure a promising candidate for PEC biosensing applications, probably for the extended field of PEC water splitting or other solar photovoltaic beacons. Nature Publishing Group 2015-01-20 /pmc/articles/PMC4298735/ /pubmed/25600940 http://dx.doi.org/10.1038/srep07882 Text en Copyright © 2015, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Kang, Zhuo Yan, Xiaoqin Wang, Yunfei Bai, Zhiming Liu, Yichong Zhang, Zheng Lin, Pei Zhang, Xiaohui Yuan, Haoge Zhang, Xueji Zhang, Yue Electronic Structure Engineering of Cu(2)O Film/ZnO Nanorods Array All-Oxide p-n Heterostructure for Enhanced Photoelectrochemical Property and Self-powered Biosensing Application |
title | Electronic Structure Engineering of Cu(2)O Film/ZnO Nanorods Array All-Oxide p-n Heterostructure for Enhanced Photoelectrochemical Property and Self-powered Biosensing Application |
title_full | Electronic Structure Engineering of Cu(2)O Film/ZnO Nanorods Array All-Oxide p-n Heterostructure for Enhanced Photoelectrochemical Property and Self-powered Biosensing Application |
title_fullStr | Electronic Structure Engineering of Cu(2)O Film/ZnO Nanorods Array All-Oxide p-n Heterostructure for Enhanced Photoelectrochemical Property and Self-powered Biosensing Application |
title_full_unstemmed | Electronic Structure Engineering of Cu(2)O Film/ZnO Nanorods Array All-Oxide p-n Heterostructure for Enhanced Photoelectrochemical Property and Self-powered Biosensing Application |
title_short | Electronic Structure Engineering of Cu(2)O Film/ZnO Nanorods Array All-Oxide p-n Heterostructure for Enhanced Photoelectrochemical Property and Self-powered Biosensing Application |
title_sort | electronic structure engineering of cu(2)o film/zno nanorods array all-oxide p-n heterostructure for enhanced photoelectrochemical property and self-powered biosensing application |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4298735/ https://www.ncbi.nlm.nih.gov/pubmed/25600940 http://dx.doi.org/10.1038/srep07882 |
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