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我的思考 注意，非等价掺杂引入的缺陷可能导致格位对称性发生变化： These defects can produce Ln3+ sites with distinct symmetries, depending on their position relative to the dopant. (Optical Materials, 2022, 133: 112926.) Unusual Concentration Induced Antithermal Quenching of the Bi2+ Emission from Sr2P2O7:Bi2+ Li4SrCa(SiO4)2 禁带宽度：The band F at 167 nm is assigned to the host excitonic…