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CuO/ZnO Heterojunction Nanorod Arrays Prepared by Photochemical Method with Improved UV Detecting Performance.

ABSTRACT: CuO/ZnO heterojunction nanorod arrays were synthesized using a facile photochemical deposition strategy. The morphology of CuO was related to the concentration of Cu²⁺ in the Cu(NO₃)₂ solution, UV illumination time, and the air annealing temperature. A possible reaction mechanism was proposed. In the photochemical deposition process, the OH^- was generated in the vicinity of the ZnO nanorod arrays and reacted with Cu²⁺ and NO₃^- in the solution to form Cu₂(NO₃)(OH)₃/ZnO heterojunction nanorod arrays firstly, which were converted into CuO/ZnO heterojunction nanorod arrays completely after air annealing at a low temperature. The fabricated CuO/ZnO heterojunction nanorod arrays exhibits a well-defined rectifying characteristic and an improved photo-response performance compared with pure ZnO nanorod arrays.

SUBMITTER: Li J

PROVIDER: S-EPMC6566173 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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CuO/ZnO Heterojunction Nanorod Arrays Prepared by Photochemical Method with Improved UV Detecting Performance.

Li Jieni J Zhao Tingting T M Shirolkar Mandar M Li Ming M Wang Haiqian H Li Henan H

Nanomaterials (Basel, Switzerland) 20190523 5

CuO/ZnO heterojunction nanorod arrays were synthesized using a facile photochemical deposition strategy. The morphology of CuO was related to the concentration of Cu2+ in the Cu(NO3)2 solution, UV illumination time, and the air annealing temperature. A possible reaction mechanism was proposed. In the photochemical deposition process, the OH- was generated in the vicinity of the ZnO nanorod arrays and reacted with Cu2+ and NO3 ...[more]

PMID: 31126059

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