The dependence of lead silicate glass color, applied using copper(ii) ions, on lead content in the glass, the nature of the alkali metal, and copper content was studied. It was shown that the principal contribution to the color is made by the shift of the fundamental absorption edge, which correlates with the amount of lead and copper ions. According to EPR results for glasses with the studied compositions, copper ions have a tetragonally distorted octahedral coordination environment, which does not change considerably with composition. The Cuii d—d-transition bands also do not undergo considerable changes.

中文翻译：

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宏观和微观组分含量对掺杂铜的 M2O-PbO-SiO2 (M = Li, Na, K, Rb, Cs) 玻璃颜色的影响

研究了使用铜 (ii) 离子应用的硅酸铅玻璃颜色对玻璃中铅含量、碱金属的性质和铜含量的依赖性。结果表明，对颜色的主要贡献是由基本吸收边的移动造成的，这与铅和铜离子的量有关。根据具有所研究成分的玻璃的 EPR 结果，铜离子具有四方扭曲的八面体配位环境，其不会随成分发生显着变化。Cuii d-d-过渡带也没有发生相当大的变化。