Fabrication and electrical properties of micro/nanoporous ZnO: Al films

Eiji Hosono, Shinobu Fujihara, Toshio Kimura

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Micro/nanoporous ZnO : Al films were fabricated through the pyrolytic transformation of AlCl3-added layered hydroxide zinc acetate (LHZA) self-templates. Formation of the self-templates on glass substrates was achieved on the basis of heterogeneous nucleation and crystal growth that proceeded in a chemical bath composed of zinc acetate dihydrate, aluminium chloride hexahydrate, and methanol, kept at a small degree of supersaturation. The LHZA self-templates had a nest-like morphology with interlaced sheet-like particles. Pyrolysis of the template films at low temperatures resulted in the formation of ZnO without microstructural deformation. The electrical resistance of the ZnO films exhibited minimum values when aluminium was added to the chemical bath at concentrations around 0.5 at.%. These results suggest that we achieved successful Al-doping of micro/nanoporous ZnO films.

Original languageEnglish
Pages (from-to)881-886
Number of pages6
JournalJournal of Materials Chemistry
DOIs
Publication statusPublished - 2004 Jan 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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