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 language | English |
|---|---|
| Pages (from-to) | 1324-1333 |
| Number of pages | 10 |
| Journal | Journal of Materials Research |
| Volume | 6 |
| Issue number | 6 |
| Publication status | Published - Jun 1991 |
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ASJC Scopus subject areas
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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 journal › Article
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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 -