Enhanced photoelectrochemical properties of nanocrystalline TiO2 electrode by surface sensitization with CuxO quantum dots

Abstract Nanoporous anatase TiO2 films were fabricated by a screen-printing method, and CuxO quantum dots (QDs) were deposited on the TiO2 films through successive ionic layer adsorption and reaction (SILAR). The amount of CuxO QDs on the TiO2 films are controlled by changing the number of SILAR cyc...

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Autores principales:	Jiajia Tao, Zhaoqi Sun, Yunlang Cheng, Miao Zhang, Jianguo Lv, Shiwei Shi, Gang He, Xishun Jiang, Xiaoshuang Chen, Xingzhi Wang, Zhuang Wang, Zezhou Gong
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dc3c58e0248f461fb86e1bdfa254fa8b
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spelling	oai:doaj.org-article:dc3c58e0248f461fb86e1bdfa254fa8b2021-12-02T15:06:11ZEnhanced photoelectrochemical properties of nanocrystalline TiO2 electrode by surface sensitization with CuxO quantum dots10.1038/s41598-017-05645-x2045-2322https://doaj.org/article/dc3c58e0248f461fb86e1bdfa254fa8b2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05645-xhttps://doaj.org/toc/2045-2322Abstract Nanoporous anatase TiO2 films were fabricated by a screen-printing method, and CuxO quantum dots (QDs) were deposited on the TiO2 films through successive ionic layer adsorption and reaction (SILAR). The amount of CuxO QDs on the TiO2 films are controlled by changing the number of SILAR cycles. The morphology, microstructure, optical, and photoelectrochemical properties of different CuxO sensitized TiO2 films (CuxO/TiO2) were investigated in detail. The nanoporous TiO2 film offers a large surface area for anchoring QDs. QD deposited samples exhibited a significant improvement in photoelectrochemical performance than the bare of TiO2. CuxO/TiO2, prepared with 7 SILAR cycles, showed the best photoelectrochemical properties, where the photocurrent density was enhanced to 500.01 μA/cm2 compared with 168.88 μA/cm2 of bare TiO2 under visible light. These results indicate that the designed CuxO/TiO2 structure possesses superior charge separation efficiency and photoelectrochemical properties.Jiajia TaoZhaoqi SunYunlang ChengMiao ZhangJianguo LvShiwei ShiGang HeXishun JiangXiaoshuang ChenXingzhi WangZhuang WangZezhou GongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jiajia Tao Zhaoqi Sun Yunlang Cheng Miao Zhang Jianguo Lv Shiwei Shi Gang He Xishun Jiang Xiaoshuang Chen Xingzhi Wang Zhuang Wang Zezhou Gong Enhanced photoelectrochemical properties of nanocrystalline TiO2 electrode by surface sensitization with CuxO quantum dots
description	Abstract Nanoporous anatase TiO2 films were fabricated by a screen-printing method, and CuxO quantum dots (QDs) were deposited on the TiO2 films through successive ionic layer adsorption and reaction (SILAR). The amount of CuxO QDs on the TiO2 films are controlled by changing the number of SILAR cycles. The morphology, microstructure, optical, and photoelectrochemical properties of different CuxO sensitized TiO2 films (CuxO/TiO2) were investigated in detail. The nanoporous TiO2 film offers a large surface area for anchoring QDs. QD deposited samples exhibited a significant improvement in photoelectrochemical performance than the bare of TiO2. CuxO/TiO2, prepared with 7 SILAR cycles, showed the best photoelectrochemical properties, where the photocurrent density was enhanced to 500.01 μA/cm2 compared with 168.88 μA/cm2 of bare TiO2 under visible light. These results indicate that the designed CuxO/TiO2 structure possesses superior charge separation efficiency and photoelectrochemical properties.
format	article
author	Jiajia Tao Zhaoqi Sun Yunlang Cheng Miao Zhang Jianguo Lv Shiwei Shi Gang He Xishun Jiang Xiaoshuang Chen Xingzhi Wang Zhuang Wang Zezhou Gong
author_facet	Jiajia Tao Zhaoqi Sun Yunlang Cheng Miao Zhang Jianguo Lv Shiwei Shi Gang He Xishun Jiang Xiaoshuang Chen Xingzhi Wang Zhuang Wang Zezhou Gong
author_sort	Jiajia Tao
title	Enhanced photoelectrochemical properties of nanocrystalline TiO2 electrode by surface sensitization with CuxO quantum dots
title_short	Enhanced photoelectrochemical properties of nanocrystalline TiO2 electrode by surface sensitization with CuxO quantum dots
title_full	Enhanced photoelectrochemical properties of nanocrystalline TiO2 electrode by surface sensitization with CuxO quantum dots
title_fullStr	Enhanced photoelectrochemical properties of nanocrystalline TiO2 electrode by surface sensitization with CuxO quantum dots
title_full_unstemmed	Enhanced photoelectrochemical properties of nanocrystalline TiO2 electrode by surface sensitization with CuxO quantum dots
title_sort	enhanced photoelectrochemical properties of nanocrystalline tio2 electrode by surface sensitization with cuxo quantum dots
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/dc3c58e0248f461fb86e1bdfa254fa8b
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Enhanced photoelectrochemical properties of nanocrystalline TiO2 electrode by surface sensitization with CuxO quantum dots

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