Single phase ZnV2O6 nanorods with excellent visible light photodetection capability

Kyung Min Kim, Hyeon Ho Cho, Hak Ki Yu, Myung Hwa Kim

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We report a facile synthetic route for the growth of single phase ZnV2O6 nanorods via a simple acid–base reaction of the Lewis acid forms of ZnCl2 and VCl3 with NaOH in an aqueous solution followed by the thermal treatment of the resulting metal hydroxides on a SiO2 substrate in air. The as-grown ZnV2O6 nanorods exhibited a well-defined rectangular cross-section with a width of approximately 300–350 nm and thickness of 100–150 nm, and they extended in random directions up to a length of 3 µm. The as-grown ZnV2O6 nanorods possessed a single-phase monoclinic brannerite-type structure, as determined via X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopic investigations. The synthesized ZnV2O6 sample exhibited a band gap of ∼2.06 eV and excellent photodetection properties in the visible light region of 635 nm, which is the band-edge wavelength. The new ZnV2O6 synthetic method proposed in this report could be used to develop various photocatalysts and energy conversion materials in the future.

Original languageEnglish
Article number168676
JournalJournal of Alloys and Compounds
Volume938
DOIs
StatePublished - 25 Mar 2023

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Korean government ( MSIT ) ( NRF-2019R1A2C1006972 , NRF-2021R1F1A1053270 and NRF-2021R1A4A1031357 ). This research was supported by Korea Basic Science Institute (National Research Facilities and Equipment Center) grant funded by the Ministry of Science ( 2020R1A6C101B194 ).

Publisher Copyright:
© 2022 Elsevier B.V.

Keywords

  • Acid–base reaction
  • Band-edge wavelength
  • Nanostructure synthesis
  • Visible light photodetector
  • ZnVO

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