强度(物理)
拉曼光谱
大气温度范围
分析化学(期刊)
猝灭(荧光)
原位
熔化温度
材料科学
温度测量
谱线
化学
矿物学
热力学
光学
荧光
物理
复合材料
有机化学
色谱法
天文
作者
George Papatheodorou,Angelos G. Kalampounias
标识
DOI:10.1088/0953-8984/21/20/205101
摘要
In situ quantitative Raman spectra of vitreous and molten silica were measured from LN(2) temperatures up to above melting and used to calculate the intensities of the two 'defect peaks' D(1) and D(2) associated with the corresponding four- and three-membered ring structures. The D(1) intensity decreases with increasing temperature while the D(2) intensity appears to be invariant to temperature. The data are in disagreement with the quenching/fictive temperature experiments and show definitely no abrupt intensity changes at any temperature.
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