WO3-ZnO and CuO-ZnO nanocomposites as highly efficient photoanodes under visible light illumination

Trang Nguyen Thi Thuy, Soo Kyung Cho, Yerkezhan Amangeldinova, Dayoung Yoo, Gulmaral Tukyei, Yana Sissembayeva, Timur Sh Atabaev, Dongyun Lee, Jaebeom Lee, Nang Dinh Nguyen, Hyung Kook Kim, Dong-Myeong Shin, Yoon-Hwae Hwang

Research output: Contribution to journalArticle

Abstract

We prepared the ZnO nanocomposites with WO3or CuO nanostructures to improve the photocatalytic performance of ZnO nanostructures. The characterizations of the nanocomposites by using SEM, X-ray diffractor, UV-vis spectrometer, and photoluminescence reveal the morphologies and wide light absorption range of materials. The highest current densities of WO3/ZnO and CuO/ZnO nanocomposites were up to 1.28 mA/cm2and 2.49 mA/cm2at 1.23V (vs RHE) under AM 1.5 100 mW/cm2, which are ~ 1.2 and 3.5-fold greater than that of the ZnO nanostructures, respectively. The facile fabrication process suggests that nanocomposite with narrow bandgap materials, such as WO3and CuO, would improve the performance of electrochemical and optoelectrical devices, such as dye-sensitized solar cells and biosensor.

Original languageEnglish
Pages (from-to)255702
JournalNanotechnology
Volume31
DOIs
Publication statusPublished - Apr 2020
Externally publishedYes

Keywords

  • nanocomposites
  • photoelectrochemical water splitting cells
  • visible range photoanodes
  • WO3
  • ZnO
  • CuO

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    Thuy, T. N. T., Cho, S. K., Amangeldinova, Y., Yoo, D., Tukyei, G., Sissembayeva, Y., Atabaev, T. S., Lee, D., Lee, J., Nguyen, N. D., Kim, H. K., Shin, D-M., & Hwang, Y-H. (2020). WO3-ZnO and CuO-ZnO nanocomposites as highly efficient photoanodes under visible light illumination. Nanotechnology, 31, 255702. https://doi.org/10.1088/1361-6528/ab7d75, https://doi.org/10.1088/1361-6528/ab7d75