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在高压下对一维后矿 (TDMP) PbBr₄的结构演变和光学调整

Ruijing Fu^1,2, Junpeng Gao¹, Lingrui Wang³

¹School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, P. R. China.

Inorganic chemistry

|September 19, 2024

概括

高压调整了一维 (1D) 后矿 (TDMP) PbBr4 的颜色辐射从白色到黄色-色. 压力诱导结构变化并影响激发行为,影响照明应用的光学特性.

科学领域:

材料科学材料科学材料科学
固态物理固态物理
光电学是指光电子产品.

背景情况:

低维有机-无机化物矿是稳定的固态照明的关键.
在外部刺激下优化它们的结构和光学特性至关重要.
了解结构-属性关系对于设备开发至关重要.

研究的目的:

研究高压对1D后矿 (TDMP) PbBr4.4的结构和光学特性的影响.
探索压力诱导的辐射颜色和激子动态的变化.
揭示结构转变和压力下的光学反应之间的关系.

主要方法:

使用钻石天细胞进行高压调查.
光谱分析用于研究光学特性 (例如,辐射光谱).
在不同压力条件下的结构特征.

主要成果:

(TDMP) PbBr4 显示可调节的辐射从白色到黄色-色,压力增加 (0-20 GPa).
高压通过增强的电子 - 声子相互作用 (4.0-7.0 GPa) 促进自由刺激子被捕获成自我被捕获的刺激子 (STE).
由于声子辅助的非辐射放松,STE发射在7.0GPa以上被灭;观察到可逆的平色色.

结论:

高压显著改变了1D后矿的结构和光学特性.
刺激子动态和结构转变中的压力诱导的变化是观察到的色调调节的原因.
这项研究为光电子应用提供了对1D后矿压力依赖行为的见解.

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