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Vol. 34, No. 8(3), S&M3042

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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials
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Sensors and Materials, Volume 31, Number 4(3) (2019)
Copyright(C) MYU K.K.
pp. 1357-1364
S&M1862 Research Paper
https://doi.org/10.18494/SAM.2019.2302
Published: April 30, 2019

Photoluminescence Properties of Indium-doped ZnO/Cu-graphene Thin Films Synthesized by Hydrothermal Method [PDF]

Yuanyuan Fan, Taotao Ai, Wenhu Li, Zhifeng Deng, and Xinqiang Yuan

(Received January 18, 2019; Accepted March 1, 2019)

Keywords: hydrothermal method, ZnO, nanostructure, photoluminescence properties, blue emission

Indium-doped ZnO/Cu-graphene thin films were successfully synthesized by a hydrothermal method at 90 °C for 6 h. The crystalline structure, elementary compositions, morphologies, and photoluminescence properties were investigated. The results indicated that ZnO nanorods with diameters varying from 0.315 to 3.348 μm were obtained on Cu-graphene flexible substrates. An ultraviolet (UV) peak at 398 nm and a blue band were observed on the room-temperature photoluminescent (PL) spectra. The UV emission peak mainly attributed to the exciton transition. The blue emission band was assigned to the Zn interstitial (Zni) and Zn vacancy (VZn) level transition. The strongest blue emission band was observed on the PL spectra corresponding to the indium (In) doping concentration of 0.3%. The influence of In doping on the blue band was also investigated.

Corresponding author: Taotao Ai


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Cite this article
Yuanyuan Fan, Taotao Ai, Wenhu Li, Zhifeng Deng, and Xinqiang Yuan, Photoluminescence Properties of Indium-doped ZnO/Cu-graphene Thin Films Synthesized by Hydrothermal Method, Sens. Mater., Vol. 31, No. 4, 2019, p. 1357-1364.



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