RAMAN-STUDY ON SOL-GEL DERIVED TUNGSTEN-OXIDES FROM TUNGSTEN ETHOXIDE

被引：63

作者：

TAKASE, A ^{[1
]}

MIYAKAWA, K ^{[1
]}

机构：

[1] UNIV FUKUOKA, FAC SCI, DEPT APPL PHYS, JONAN KU, FUKUOKA 814, JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1991年 / 30卷 / 8B期

关键词：

RAMAN SPECTRA; SPECTROSCOPY; TUNGSTEN OXIDE; SOL; GEL; GELATION; CRYSTALLIZATION; ELECTROCHROMIC; ALKOXIDE;

D O I：

10.1143/JJAP.30.L1508

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Tungsten oxide gels were prepared by a sol-gel process from a tungsten ethoxide/ethanol/water solution (sol). Tungstic hydrates were observed in high-viscosity sol by Raman spectroscopy. As the sol is reduced to the gel, Raman bands ascribed to amorphous tungsten oxide appeared. The result of the Raman measurement shows that the structure of the gel changes progressively during heat treatment and that the amorphous tungsten oxide becomes a crystalline solid at 410-degrees-C.

引用

页码：L1508 / L1511

页数：4

共 17 条

[1] INFRARED AND RAMAN-STUDY OF WO3 TUNGSTEN TRIOXIDES AND WO3, XH2O TUNGSTEN TRIOXIDE HYDRATES [J].

DANIEL, MF ;

DESBAT, B ;

LASSEGUES, JC ;

GERAND, B ;

FIGLARZ, M .

JOURNAL OF SOLID STATE CHEMISTRY, 1987, 67 (02) :235-247

[2] ELECTROCHROMISM IN ANODIC WO3 FILMS .1. PREPARATION AND PHYSICOCHEMICAL PROPERTIES OF FILMS IN THE VIRGIN AND COLORED STATES [J].

DELICHERE, P ;

FALARAS, P ;

FROMENT, M ;

HUGOTLEGOFF, A ;

AGIUS, B .

THIN SOLID FILMS, 1988, 161 :35-46

[3] SILICA-GELS FROM THE ALKOXIDE METHOD - DEPENDENCE OF SHEAR MODULUS ON CONCENTRATION [J].

DUMAS, J ;

BAZA, S ;

SERUGHETTI, J .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1986, 5 (04) :478-480

[4]

HIOKI S, 1989, NIPPON SERAM KYO GAK, V97, P628, DOI 10.2109/jcersj.97.628

[5]

ILER RK, 1986, SCI CERAMIC CHEM PRO, P1

[6] ESTIMATION OF THE COMPOSITION PARAMETER OF ELECTROCHEMICALLY COLORED AMORPHOUS HYDROGEN TUNGSTEN-OXIDE FILMS [J].

KANEKO, H ;

MIYAKE, K .

JOURNAL OF APPLIED PHYSICS, 1989, 66 (02) :845-850

[7]

KEPERT DL, 1978, J CHEM SOC DA, V133

[8] RAMAN-SPECTROSCOPIC DETERMINATION OF THE PH-DEPENDENCE OF INTERMEDIATES IN SOL-GEL SILICATE FORMATION [J].

LIPPERT, JL ;

MELPOLDER, SB ;

KELTS, LM .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1988, 104 (01) :139-147

[9] TRANSITION-METAL OXIDE GELS AND COLLOIDS [J].

LIVAGE, J ;

LEMERLE, J .

ANNUAL REVIEW OF MATERIALS SCIENCE, 1982, 12 :103-122

[10] ELLIPSOMETRY MEASUREMENTS AS DIRECT EVIDENCE OF THE DRUDE MODEL FOR POLYCRYSTALLINE ELECTROCHROMIC WO3 FILMS [J].

MENDELSOHN, DH ;

GOLDNER, RB .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1984, 131 (04) :857-860

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