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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 5/2017

11.11.2016

Enhanced visible light response of ZnO porous thin film by post-annealing treatment

verfasst von: Jianguo Lv, Wenhao Wang, Min Zhao, Weili Zhu, Yuebing Cheng, Gang He, Miao Zhang, Xiaoshuang Chen, Zhaoqi Sun

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 5/2017

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Abstract

ZnO thin films were synthesized by a facile electrodeposition method in the aqueous solution. Porous ZnO thin films with wurtzite structure could be achieved by mean of annealing treatment. The growth mechanism of the porous ZnO thin film was discussed. The intensity of the E 2 mode in the ZnO thin film, which represents crystalline quality of the thin film increases with the increasing of annealing temperature. Optical properties indicate that annealing temperature has strong effect on the optical band gap value and defect concentrations. Both the green and yellow emissions corresponding to respective oxygen vacancies and oxygen interstitials can be identified. The results show that ZnO annealed at 400 °C exhibits a significant photocurrent density enhancement which is about 18 times larger than that of the as-deposited ZnO thin films. The mechanism of the enhanced photoresponse for the ZnO thin film has been discussed in detail.
Vorheriger Artikel Enhanced electrical characteristics of sol–gel-derived amorphous SrTiO3 films
Nächster Artikel Preparation of nickel ferrite nanoparticles via a new route and study of their photocatalytic properties

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Metadaten
Titel
Enhanced visible light response of ZnO porous thin film by post-annealing treatment
verfasst von
Jianguo Lv
Wenhao Wang
Min Zhao
Weili Zhu
Yuebing Cheng
Gang He
Miao Zhang
Xiaoshuang Chen
Zhaoqi Sun
Publikationsdatum
11.11.2016
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 5/2017
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-016-6019-7

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