含CaO、MgO、BaO四硼酸盐玻璃的光学性质研究

A. Kamal, Manaf A.Hassan al-azzawi
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引用次数: 0

摘要

摘要采用传统的熔体淬火法制备了成分为(100-x) % Na2B4O7-x % MO (X=10,20,30,40)的玻璃,其中(M)为Ba, Mg和Ca。进行x射线衍射。XRD结果证实了样品的非晶态性质。测定密度随玻璃网络中BaO、MgO和CaO含量的增加而增加。研究了吸收边的位置和移动速率、光带能(Eopt)和带尾能(Eo)。本文所研究的所有玻璃的Eopt和Eo值与某些半导体的Eopt和Eo值相当。用红外光谱对玻璃的结构进行了研究。红外光谱的实验结果表明,这些玻璃的主要结构是BO3和B2O7基团。同时发现,随着(Ba, Mg, Ca)氧化物在玻璃网络中的含量增加,能带位置的移动很小。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Study of Optical Properties of Tetraborate Glasses Containing CaO, MgO & BaO
Abstract Glasses with compositions (100-x) % Na2B4O7–x % MO (X=10,20,30,40) where (M) is Ba, Mg and Ca, are prepared using conventional melt quenching method. X-rays diffractions are performed. The result of (XRD) confirm the amorphous nature of the samples. The measured density increases with increasing content of BaO, MgO & CaO in glass network. The position and shifting rate of absorption edge, optical band energy (Eopt) and band tails energy (Eo) were investigated. The Eopt and Eo values of all glasses studied in this work were found to be comparable with the values corresponding to some semiconductors. The structure of the glasses was investigated by means of IR spectroscopy. It found from the experimental results of IR spectra that the groups (BO3) and (B2O7) are dominant the structure of these glasses. Also It is found that the shifting in band position is small with increasing of (Ba, Mg, Ca) oxide in the glass network.
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