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Updated: Sep 26, 2025

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
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Two-Dimensional V2O5 Inverse Opal: Fabrication and Electrochromic Application.

Hua Li1,2, Zijuan Tang1,2, Yuwei Liu1

  • 1Department of Materials Chemistry, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China.

Materials (Basel, Switzerland)
|April 23, 2022
PubMed
Summary
This summary is machine-generated.

Two-dimensional vanadium pentoxide (V2O5) inverse opals were synthesized for lithium-ion battery cathodes. These materials show promising electrochromic properties by modulating light transmittance through ion intercalation.

Keywords:
electrochromic propertiestwo-dimensional inverse opalvanadium oxide‘dynamic hard template’ strategy

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Vanadium pentoxide (V2O5) is a promising cathode material for lithium-ion batteries due to its open-layered structure.
  • Improving lithium-ion diffusion in V2O5 is crucial for enhanced battery performance, often explored through thin films and nanoarchitectures.

Purpose of the Study:

  • To synthesize high-quality two-dimensional (2D) inverse opal α-V2O5 films.
  • To investigate the electrochromic behavior and its correlation with structural and electronic properties.

Main Methods:

  • Synthesis of 2D inverse opal α-V2O5 films using a dynamic hard template method with polystyrene spheres.
  • Characterization through bandgap analysis and electrochemical methods.
  • Exploration of structural colors and large-area film properties.

Main Results:

  • Successful synthesis of 2D inverse opal α-V2O5 films with a porous array and structural colors.
  • Demonstrated electrochromic behavior linked to lithium-ion intercalation/deintercalation.
  • Observed changes in bandgap and visible light transmittance due to stoichiometry and vanadium ion valence changes.

Conclusions:

  • Lithium-ion intercalation significantly impacts the bandgap and transmittance of α-V2O5 films.
  • Lattice asymmetry and phase changes resulting from lithium distribution influence electrochromic performance.
  • The synthesized 2D inverse opal α-V2O5 shows potential for energy storage and electrochromic applications.