Study of fluorescent glass-ceramics

Guanming Qiu; Qingduo Duanmu

doi:10.1117/12.46047

1 August 1991 Study of fluorescent glass-ceramics

Guanming Qiu, Qingduo Duanmu

Author Affiliations +

Proceedings Volume 1513, Glasses for Optoelectronics II; (1991) https://doi.org/10.1117/12.46047
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

Abstract

This study determines the fluorescent characteristics of Cr3+-doped glass ceramics. The precursor glasses in the systems of B2O3-AL2O3-SiO2, MgO-Al2O3-SiO2, Li2O-AL2O3-SiO2 were prepared at 1500- 1600 degree(s)C. According to the theory that 'the basic units of glass state can be considered as complex anions, which have fixed coordinates and short range order' proposed by Qiu Guanming, the glass ceramics were obtained by adjusting the structure slightly at 670- 880 degree(s)C. From DTA, x-ray diffraction, SEM, and spectral measurements, 126 unequivalent chromium (III) sites in the mullite were deduced, which can be characterized as low, intermediate, and high field. The lineshape function of fluorescence was calculated by the single site model and statistical site model. The results have shown that the theoretical lineshape reproduces most of the essential spectral features of glass ceramics very well, and the selective excitation affects the spectral width, peak position, and lineshape.

Citation Download Citation

Guanming Qiu and Qingduo Duanmu "Study of fluorescent glass-ceramics", Proc. SPIE 1513, Glasses for Optoelectronics II, (1 August 1991); https://doi.org/10.1117/12.46047

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