Photochromic properties in cadmium bismuth aluminate glasses and its oxidation treatment effect

Danping Chen; Yoshinari Miura; Yasuaki Murata; Tokuro Nanba; Akiyoshi Osaka

Photochromic properties in cadmium bismuth aluminate glasses and its oxidation treatment effect

Danping Chen, Yoshinari Miura, Yasuaki Murata, Tokuro Nanba, Akiyoshi Osaka

Research output: Contribution to journal › Article › peer-review

Abstract

Photochromic properties were investigated for glass in the system CdO-Bi₂O₃-Al₂O₃. Optical density increased with increasing BiO_1.5 content in the glasses at fixed CdO content. The darkening degree could be effectively enhanced by oxidation treatments. The composition dependence and effect of oxidation treatment were studied by X-ray photoelectron and Raman scattering spectroscopies. With increasing BiO_1.5 content the Lewis basicity of oxygen atoms increased and the fraction of covalently bonded cadmium decreased. The trap density of holes increased and the photogeneration yield decreased. The darkening degree showed a maximum around BiO_1.5=13 cation%. The effect of oxidation treatment on the darkening degree may be related to production of a large amount of monovalent O^- ions with holes in their 2p valence band, and to formation of electron centers in cadmium atoms.

Original language	English
Pages (from-to)	322-328
Number of pages	7
Journal	Journal of the Ceramic Society of Japan
Volume	105
Issue number	4
Publication status	Published - Jan 1 1997

Keywords

CdO-BiO-AlO glasses
Lewis basicity
Local environment of Cd
O ion
Oxidation treatment
Photochromism

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Cite this

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title = "Photochromic properties in cadmium bismuth aluminate glasses and its oxidation treatment effect",

abstract = "Photochromic properties were investigated for glass in the system CdO-Bi2O3-Al2O3. Optical density increased with increasing BiO1.5 content in the glasses at fixed CdO content. The darkening degree could be effectively enhanced by oxidation treatments. The composition dependence and effect of oxidation treatment were studied by X-ray photoelectron and Raman scattering spectroscopies. With increasing BiO1.5 content the Lewis basicity of oxygen atoms increased and the fraction of covalently bonded cadmium decreased. The trap density of holes increased and the photogeneration yield decreased. The darkening degree showed a maximum around BiO1.5=13 cation%. The effect of oxidation treatment on the darkening degree may be related to production of a large amount of monovalent O- ions with holes in their 2p valence band, and to formation of electron centers in cadmium atoms.",

keywords = "CdO-BiO-AlO glasses, Lewis basicity, Local environment of Cd, O ion, Oxidation treatment, Photochromism",

author = "Danping Chen and Yoshinari Miura and Yasuaki Murata and Tokuro Nanba and Akiyoshi Osaka",

year = "1997",

month = jan,

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language = "English",

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journal = "Journal of the Ceramic Society of Japan",

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T1 - Photochromic properties in cadmium bismuth aluminate glasses and its oxidation treatment effect

AU - Chen, Danping

AU - Miura, Yoshinari

AU - Murata, Yasuaki

AU - Nanba, Tokuro

AU - Osaka, Akiyoshi

PY - 1997/1/1

Y1 - 1997/1/1

N2 - Photochromic properties were investigated for glass in the system CdO-Bi2O3-Al2O3. Optical density increased with increasing BiO1.5 content in the glasses at fixed CdO content. The darkening degree could be effectively enhanced by oxidation treatments. The composition dependence and effect of oxidation treatment were studied by X-ray photoelectron and Raman scattering spectroscopies. With increasing BiO1.5 content the Lewis basicity of oxygen atoms increased and the fraction of covalently bonded cadmium decreased. The trap density of holes increased and the photogeneration yield decreased. The darkening degree showed a maximum around BiO1.5=13 cation%. The effect of oxidation treatment on the darkening degree may be related to production of a large amount of monovalent O- ions with holes in their 2p valence band, and to formation of electron centers in cadmium atoms.

AB - Photochromic properties were investigated for glass in the system CdO-Bi2O3-Al2O3. Optical density increased with increasing BiO1.5 content in the glasses at fixed CdO content. The darkening degree could be effectively enhanced by oxidation treatments. The composition dependence and effect of oxidation treatment were studied by X-ray photoelectron and Raman scattering spectroscopies. With increasing BiO1.5 content the Lewis basicity of oxygen atoms increased and the fraction of covalently bonded cadmium decreased. The trap density of holes increased and the photogeneration yield decreased. The darkening degree showed a maximum around BiO1.5=13 cation%. The effect of oxidation treatment on the darkening degree may be related to production of a large amount of monovalent O- ions with holes in their 2p valence band, and to formation of electron centers in cadmium atoms.

KW - CdO-BiO-AlO glasses

KW - Lewis basicity

KW - Local environment of Cd

KW - O ion

KW - Oxidation treatment

KW - Photochromism

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AN - SCOPUS:0031122015

SN - 0914-5400

VL - 105

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JO - Journal of the Ceramic Society of Japan

JF - Journal of the Ceramic Society of Japan

IS - 4

ER -

Photochromic properties in cadmium bismuth aluminate glasses and its oxidation treatment effect

Abstract

Keywords

ASJC Scopus subject areas

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