Structure and Photochromism of Al-Cd-O-F Glasses

Fu Jie; Akiyoshi Osaka; Yoshinari Miura; Jun Takada; Tokuro Nanba

doi:10.2472/jsms.41.578

Structure and Photochromism of Al-Cd-O-F Glasses

Fu Jie, Akiyoshi Osaka, Yoshinari Miura, Jun Takada, Tokuro Nanba

School of Engineering

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

2 Citations (Scopus)

Abstract

New photochromic glasses in the system Al-Cd-O-F were obtained. When this type ot glass was irradiated by darkening UV light having the wavelength near the absorption edge, a new absorption was induced almost over the whole visible region. The photo-induced absorption decayed very slowly accompanying luminescence, and its half fading time was remarkably shortened by heating. Infrared and ²⁷Al MAS-NMR spectra indicated that both AlX₄ tetrahedra and AlX₆ pctahedra (X=O, F) were present and the fraction of octahedra increased with the increasing fluorine content. On the basis of both the ESR spectra and the glass structure model, the color centers were proposed to be oxygen hole centers.

Original language	English
Pages (from-to)	578-582
Number of pages	5
Journal	journal of the society of materials science, japan
Volume	41
Issue number	464
DOIs	https://doi.org/10.2472/jsms.41.578
Publication status	Published - May 1992

Keywords

Al MAS-NMR spectra
Al-Cd-O-F
ESR spectra
Glass
Photochromism
Structure

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.2472/jsms.41.578

Cite this

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title = "Structure and Photochromism of Al-Cd-O-F Glasses",

abstract = "New photochromic glasses in the system Al-Cd-O-F were obtained. When this type ot glass was irradiated by darkening UV light having the wavelength near the absorption edge, a new absorption was induced almost over the whole visible region. The photo-induced absorption decayed very slowly accompanying luminescence, and its half fading time was remarkably shortened by heating. Infrared and 27Al MAS-NMR spectra indicated that both AlX4 tetrahedra and AlX6 pctahedra (X=O, F) were present and the fraction of octahedra increased with the increasing fluorine content. On the basis of both the ESR spectra and the glass structure model, the color centers were proposed to be oxygen hole centers.",

keywords = "Al MAS-NMR spectra, Al-Cd-O-F, ESR spectra, Glass, Photochromism, Structure",

author = "Fu Jie and Akiyoshi Osaka and Yoshinari Miura and Jun Takada and Tokuro Nanba",

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pages = "578--582",

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publisher = "Society of Materials Science Japan",

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TY - JOUR

T1 - Structure and Photochromism of Al-Cd-O-F Glasses

AU - Jie, Fu

AU - Osaka, Akiyoshi

AU - Miura, Yoshinari

AU - Takada, Jun

AU - Nanba, Tokuro

PY - 1992/5

Y1 - 1992/5

N2 - New photochromic glasses in the system Al-Cd-O-F were obtained. When this type ot glass was irradiated by darkening UV light having the wavelength near the absorption edge, a new absorption was induced almost over the whole visible region. The photo-induced absorption decayed very slowly accompanying luminescence, and its half fading time was remarkably shortened by heating. Infrared and 27Al MAS-NMR spectra indicated that both AlX4 tetrahedra and AlX6 pctahedra (X=O, F) were present and the fraction of octahedra increased with the increasing fluorine content. On the basis of both the ESR spectra and the glass structure model, the color centers were proposed to be oxygen hole centers.

AB - New photochromic glasses in the system Al-Cd-O-F were obtained. When this type ot glass was irradiated by darkening UV light having the wavelength near the absorption edge, a new absorption was induced almost over the whole visible region. The photo-induced absorption decayed very slowly accompanying luminescence, and its half fading time was remarkably shortened by heating. Infrared and 27Al MAS-NMR spectra indicated that both AlX4 tetrahedra and AlX6 pctahedra (X=O, F) were present and the fraction of octahedra increased with the increasing fluorine content. On the basis of both the ESR spectra and the glass structure model, the color centers were proposed to be oxygen hole centers.

KW - Al MAS-NMR spectra

KW - Al-Cd-O-F

KW - ESR spectra

KW - Glass

KW - Photochromism

KW - Structure

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ER -

Structure and Photochromism of Al-Cd-O-F Glasses

Abstract

Keywords

ASJC Scopus subject areas

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