Color Centres and Polymorphism in Pure WO3 and Mixed (1-x)WO3-y•xReO2 Powders

被引：9

作者：

Cazzanelli, E. ^{[1
,2
]}

Mariotto, G. ^{[3
,4
]}

Vinegoni, C. ^{[5
]}

Kuzmin, A. ^{[6
]}

Purans, J. ^{[6
]}

机构：

[1] Univ Calabria, Ist Nazl Fis Mat, I-87036 Cosenza, Italy

[2] Univ Calabria, Dipartimento Fis, I-87036 Cosenza, Italy

[3] Univ Trent, Ist Nazl Fis Mat, I-38050 Trento, Italy

[4] Univ Trent, Dipartimento Fis, I-38050 Trento, Italy

[5] Univ Geneva, Dept Phys, GAP Opt, CH-1211 Geneva, Switzerland

[6] Inst Solid State Phys, LV-1063 Riga, Latvia

来源：

IONICS | 1999年 / 5卷 / 5-6期

关键词：

Tungsten; Milling; Structural Transformation; Mechanical Treatment; Raman Band;

D O I：

10.1007/BF02375997

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The relationship between structural transformations and colour centres creation is discussed for deeply coloured hydrogen tungsten bronzes and for pure WO(3) powders, acquiring less intense colour after mechanical treatments of variable duration. A comparative study on coloration is made also for mixed compounds (1-x)WO(3-y)center dot xReO(2), where an evidence of a resonance effect for a particular Raman band at 970 cm(-1), attributed to the color centres, is observed. Besides, it is found that even moderate milling treatments result in a quite different structural evolution of tungsten trioxide upon cooling.

引用

页码：335 / 344

页数：10

共 47 条

[1] RAMAN STUDY OF CERAMIC TUNGSTEN TRIOXIDE AT LOW-TEMPERATURES [J].

ANDERSON, A .

SPECTROSCOPY LETTERS, 1976, 9 (11) :809-819

[2] RAMAN STUDIES OF PHASE-TRANSITIONS IN GAS-EVAPORATED WO3 MICROCRYSTALS [J].

ARAI, M ;

HAYASHI, S ;

YAMAMOTO, K ;

KIM, SS .

SOLID STATE COMMUNICATIONS, 1990, 75 (07) :613-616

[3] ON THE FUNDAMENTAL ROLE OF OXYGEN FOR THE PHOTOCHROMIC EFFECT OF WO3 [J].

BECHINGER, C ;

OEFINGER, G ;

HERMINGHAUS, S ;

LEIDERER, P .

JOURNAL OF APPLIED PHYSICS, 1993, 74 (07) :4527-4533

[4] THE DYNAMICS OF THE PHOTOCHROMIC EFFECT IN TUNGSTEN TRIOXIDE [J].

BECHINGER, C ;

EBNER, D ;

HERMINGHAUS, S ;

LEIDERER, P .

SOLID STATE COMMUNICATIONS, 1994, 89 (03) :205-207

[5] Low-temperature polymorphism in tungsten trioxide powders and its dependence on mechanical treatments [J].

Cazzanelli, E ;

Vinegoni, C ;

Mariotto, G ;

Kuzmin, A ;

Purans, J .

JOURNAL OF SOLID STATE CHEMISTRY, 1999, 143 (01) :24-32

[6] Raman study of the phase transitions sequence in pure WO3 at high temperature and in HxWO3 with variable hydrogen content [J].

Cazzanelli, E ;

Vinegoni, C ;

Mariotto, G ;

Kuzmin, A ;

Purans, J .

SOLID STATE IONICS, 1999, 123 (1-4) :67-74

[7]

CAZZANELLI E, 1996, P ELECT SOC, V96, P260

[8] 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

[9] INFRARED AND RAMAN SPECTROSCOPIES OF RF SPUTTERED TUNGSTEN-OXIDE FILMS [J].

DANIEL, MF ;

DESBAT, B ;

LASSEGUES, JC ;

GARIE, R .

JOURNAL OF SOLID STATE CHEMISTRY, 1988, 73 (01) :127-139

[10]

Deb S K, 1969, Appl Opt, V8 Suppl 1, P192

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