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A simple method to obtain ZnO thin films with a hybrid structure of nanoplates and nanorods

LINHUA XU1,* , FENGLIN XIAN1, JING SU1,2, WENJIAN KUANG1, MIN LAI2,*

Affiliation

  1. School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
  2. Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and Ocean, Nanjing University of Information Science & Technology, Nanjing 210044, China

Abstract

In this paper, we reported a simple method to grow Zinc oxide thin films with a hybrid structure of nanoplates and nanorods. As far as we know, no other researchers have obtained ZnO films with this special morphology by sol-gel method. Both X-ray diffraction and photoluminescence indicate that these films have good crystalline quality. In order to test the photocatalytic performance of the samples, a common organic dye, methylene blue (MB), was selected as the photodegradation target. Compared to ZnO films with tightly packed grains and smooth surfaces, the one with a hybrid structure of nanoplates and nanorods exhibits higher photocatalytic efficiency. It is attributed to its higher surface area and easier migration of holes and electrons excited by light to the surface of ZnO nanoplates and nanorods to participate in redox reactions..

Keywords

Nanoplate-nanorod hybrid structure, ZnO films, Sol-gel method, Methylene blue, Photocatalytic activity.

Submitted at: Aug. 13, 2024
Accepted at: April 15, 2025

Citation

LINHUA XU, FENGLIN XIAN, JING SU, WENJIAN KUANG, MIN LAI, A simple method to obtain ZnO thin films with a hybrid structure of nanoplates and nanorods, Journal of Optoelectronics and Advanced Materials Vol. 27, Iss. 3-4, pp. 160-166 (2025)