Structural study of amorphous WO3 thin films prepared by the ion exchange method

Tokuro Nanba, Yoshio Nishiyama, Itaru Yasui

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

The structure of amorphous tungsten trioxide films was investigated with IR and Raman spectroscopic analyses and an XRD method. The films were prepared by ion exchange from sodium tungstate as a starting material. Films consisted of microclusters of 10-30 A diameter, in which the networks are formed with WO6 octahedra sharing their corners and edges. The networks in the as-prepared samples consisted of WO6 units with low symmetry, in which termination by W=O and W-H2 groups was common. As the post-annealed temperature became higher, the symmetry of WO6 was improved and the edge-sharing octahedra disappeared.

Original languageEnglish
Pages (from-to)1324-1333
Number of pages10
JournalJournal of Materials Research
Volume6
Issue number6
Publication statusPublished - Jun 1991

Fingerprint

Amorphous films
Ion exchange
Thin films
thin films
ions
tungstates
symmetry
Tungsten
tungsten
Sodium
sodium
Temperature

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Structural study of amorphous WO3 thin films prepared by the ion exchange method. / Nanba, Tokuro; Nishiyama, Yoshio; Yasui, Itaru.

In: Journal of Materials Research, Vol. 6, No. 6, 06.1991, p. 1324-1333.

Research output: Contribution to journalArticle

Nanba, Tokuro ; Nishiyama, Yoshio ; Yasui, Itaru. / Structural study of amorphous WO3 thin films prepared by the ion exchange method. In: Journal of Materials Research. 1991 ; Vol. 6, No. 6. pp. 1324-1333.
@article{8f4bb60cba8f436b86b253ec3df2ff25,
title = "Structural study of amorphous WO3 thin films prepared by the ion exchange method",
abstract = "The structure of amorphous tungsten trioxide films was investigated with IR and Raman spectroscopic analyses and an XRD method. The films were prepared by ion exchange from sodium tungstate as a starting material. Films consisted of microclusters of 10-30 A diameter, in which the networks are formed with WO6 octahedra sharing their corners and edges. The networks in the as-prepared samples consisted of WO6 units with low symmetry, in which termination by W=O and W-H2 groups was common. As the post-annealed temperature became higher, the symmetry of WO6 was improved and the edge-sharing octahedra disappeared.",
author = "Tokuro Nanba and Yoshio Nishiyama and Itaru Yasui",
year = "1991",
month = "6",
language = "English",
volume = "6",
pages = "1324--1333",
journal = "Journal of Materials Research",
issn = "0884-2914",
publisher = "Materials Research Society",
number = "6",

}

TY - JOUR

T1 - Structural study of amorphous WO3 thin films prepared by the ion exchange method

AU - Nanba, Tokuro

AU - Nishiyama, Yoshio

AU - Yasui, Itaru

PY - 1991/6

Y1 - 1991/6

N2 - The structure of amorphous tungsten trioxide films was investigated with IR and Raman spectroscopic analyses and an XRD method. The films were prepared by ion exchange from sodium tungstate as a starting material. Films consisted of microclusters of 10-30 A diameter, in which the networks are formed with WO6 octahedra sharing their corners and edges. The networks in the as-prepared samples consisted of WO6 units with low symmetry, in which termination by W=O and W-H2 groups was common. As the post-annealed temperature became higher, the symmetry of WO6 was improved and the edge-sharing octahedra disappeared.

AB - The structure of amorphous tungsten trioxide films was investigated with IR and Raman spectroscopic analyses and an XRD method. The films were prepared by ion exchange from sodium tungstate as a starting material. Films consisted of microclusters of 10-30 A diameter, in which the networks are formed with WO6 octahedra sharing their corners and edges. The networks in the as-prepared samples consisted of WO6 units with low symmetry, in which termination by W=O and W-H2 groups was common. As the post-annealed temperature became higher, the symmetry of WO6 was improved and the edge-sharing octahedra disappeared.

UR - http://www.scopus.com/inward/record.url?scp=0026174096&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026174096&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0026174096

VL - 6

SP - 1324

EP - 1333

JO - Journal of Materials Research

JF - Journal of Materials Research

SN - 0884-2914

IS - 6

ER -