Electrospray deposition and characterization of Cu2O thin films with ring-shaped 2-D network structure

Hiroyuki Itoh, Yoshikazu Suzuki, Tohru Sekino, Jean Christophe Valmalette, Susumu Tohno

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Cu2OO is a p-type semiconductor with a direct band gap of ~2.1 eV, and is expected for solar cell applications etc. Since monovalent Cu is necessary, compositional control is a key step for Cu2OO processing. Electrospray is a phenomenon generating ultrafine droplets, when a high voltage is applied to the surface of liquid. In this study, Cu2OO thin films with unique ring-shaped 2-D network structure have been prepared by using electrospray pyrolysis method. Copper (II) acetate monohydrate, (CH 3COO)2Cu·H2OO was used as a raw material, and D(+) glucose was used as a reducing agent for the reaction from Cu2+ to Cu+. At the substrate temperature of 300°C, only Cu2OO was obtained as a crystalline phase. Microstructure, sheet resistance and some optical properties will be discussed.

Original languageEnglish
Pages (from-to)361-366
Number of pages6
JournalJournal of the Ceramic Society of Japan
Volume122
Issue number1425
DOIs
Publication statusPublished - 2014 May

Keywords

  • Cuprous oxide
  • Electrospray
  • Pyrolysis

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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