Electrochemical synthesis of transparent nanocrystalline Cu2O films using a reverse potential waveform

F. Hu, K. C. Chan, T. M. Yue, C. Surya

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

A transparent nanocrystalline Cu2O thin film has been synthesized by electrodeposition using a reverse potential waveform with a cathodic peak potential of - 1200 mV, an anodic dissolution peak potential of + 800 mV and a cycle time of 80 s. For each cycle, Cu2O particles are firstly deposited on the substrate, followed by the deposition of Cu particles. When the current changes from cathodic to anodic, the deposited Cu particles will be dissolved. With repeated cyclic deposition and dissolution, a Cu 2O thin film with nanocrystallized structure is obtained, and it exhibits a blueshift of optical bandgap to 2.87 eV.

Original languageEnglish
Pages (from-to)17-21
Number of pages5
JournalThin Solid Films
Volume550
DOIs
Publication statusPublished - Jan 1 2014
Externally publishedYes

Keywords

  • Cuprous oxide
  • Electrodeposition
  • Reverse potential waveform

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

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