Synthesis and Characterization of (Y,Bi)AG:Eu3+ Red Phosphor by Coprecipitation Method
Source abstract
Abstract
采用化学共沉淀法合成了Bi3＋掺杂的YAG∶Eu3＋荧光粉，利用DTA-TGA、XRD分析煅烧过程中前驱体的热效应和YAG晶相的形成过程，并通过XRD、SEM、PL表征不同Bi3＋含量的YAG∶Eu3＋荧光粉结构、形貌及光致发光性能.结果表明：前驱体在煅烧温度1000℃及以上时，可形成纯相的YAG晶相；Bi3＋对Eu3＋具有敏化作用，Bi3＋的掺入使YAG∶Eu3＋荧光粉的光致发光峰强度显著增强，当Bi3＋含量为0.0010时, 其发光峰强度达到最大值，其后随着Bi3＋含量进一步增加，则因浓度猝灭而导致荧光粉发光峰强度降低；掺入Bi3＋对YAG∶Eu3＋荧光粉晶胞参数有一定的影响，但不会改变其晶体结构；Bi3＋掺杂的YAG∶Eu3＋荧光粉均匀、无团聚，呈类球型.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Polydiacetylene-based materials and applications · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (6)
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