Simple Fabrication of Homogeneous ZnO Core/Shell Nanorod Arrays for Ultraviolet Photodetectors

Mingxue Dong; Yong Wang; Zhanguo Li; Zhankun Weng; Naisen Yu

doi:10.1166/jnn.2018.15434

Simple Fabrication of Homogeneous ZnO Core/Shell Nanorod Arrays for Ultraviolet Photodetectors

J Nanosci Nanotechnol. 2018 Aug 1;18(8):5686-5691. doi: 10.1166/jnn.2018.15434.

Authors

Mingxue Dong¹, Yong Wang¹, Zhanguo Li², Zhankun Weng³, Naisen Yu⁴

Affiliations

¹ National Key Laboratory on High Power Semiconductor Lasers, Changchun University of Science and Technology, Changchun 130022, China.
² College of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, China.
³ International Research Centre for Nano Handling and Manufacturing, Changchun University of Science and Technology, Changchun 130022, China.
⁴ Liaoning Key Laboratory of Optoelectronic Films and Materials, School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600, China.

PMID: 29458626
DOI: 10.1166/jnn.2018.15434

Abstract

A simple technique of two-step growth was employed to fabricate homogeneous ZnO core/shell nanorod arrays which were composed of ZnO nanodisk shell layer on the surface of ZnO nanorod arrays. The ultraviolet (UV) response characteristics of the device were measured. The homogeneous ZnO core/shell photodetector had remarkably enhanced response and recovery speed compared with pure ZnO nanorod arrays. It indicated that surface homogeneous coating can be an alternative method to enhance the response and recovery properties of the ZnO nanorod array photodetectors.