Preparation and Optimization of Long Persistent Luminescent Sr4Al14O25:(Eu,Dy) Phosphor Materials
Source abstract
Abstract
本文利用固相反应法制备了Sr 4 Al 14 O 25 :(Eu 2+ , Dy 3+ )长余辉夜光材料, 并研究了H 3 BO 3 含量、固相反应温度和Eu含量对Sr 4 Al 14 O 25 :(Eu 2+ , Dy 3+ )长余辉夜光材料性能的影响. 实验结果表明, H 3 BO 3 含量对蓝绿发射的Sr 4 Al 14 O 25 相的形成至关重要. 在固相反应温度为1400℃, H 3 BO 3 含量为10at%, Eu/Al原子比为0.03的优化条件下, 获得了发射波长为490 nm, 余辉时间长达24 h以上的Sr 4 Al 14 O 25 夜光粉. 发光强度与Eu含量的关系证明, Sr 4 Al 14 O 25 相的蓝绿发射过程主要受电子从深陷阱到Eu 2+ 能级的转移速度的控制.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Pigment Synthesis and Properties · Optical and Acousto-Optic Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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