Electronic spectra and molar extinction coefficient of Cu2+ in mixed alkali-alkaline earth-silica glasses

被引：0
|
作者：
Back, Lina Grund [1 ]
机构：
[1] Linnaeus Univ, Dept Built Environm & Energy Technol, SE-35195 Vaxjo, Sweden
来源：
PHYSICS AND CHEMISTRY OF GLASSES-EUROPEAN JOURNAL OF GLASS SCIENCE AND TECHNOLOGY PART B | 2015年 / 56卷 / 01期
关键词：
OPTICAL-ABSORPTION; REDOX INTERACTIONS; CUPRIC ION; COPPER; EQUILIBRIUM; CATIONS; MELTS;
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
CuO is a very common colorant in blue to turquoise-blue glasses. It is well known that the absorption peak at about 800 nm for silicate glasses is caused by Cu2+, octahedrally coordinated by 6 oxygen ions. It is also known that the [Cu+]/[Cu2+] ratio, the location of the absorption peak and the extinction coefficient of Cu2+ depends on the glass composition. Many investigations have been published with CuO as a colouring agent, but almost none with a mix of Na2O and K2O or CaO and BaO in the base glass. In this study, a base glass composition of 20R(2)O-10MO-70SiO(2) (mol%, R=Na, K and M=Ca, Ba) is used and 0.40 mol% CuO is added. The molar extinction coefficient of Cu2+ is determined for the glasses and peak positions and heights are also presented and discussed.
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页码：8 / 14
页数：7
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