兴奋选择性和双发射性无二元混合金属化物用于白色发光二极管和X射线闪光
Dianxing Ju1,2, Ming Zhou1, Zhichao Liu3
1College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 260042, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|November 27, 2023
概括
新型有机金属化物晶体表现出可调节的多色发光. 这种材料, (C8H20N) 4SbMnCl9,显示了白色LED和X射线成像应用的激发依赖的辐射.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 发光的光度是非常的低.
背景情况:
- 零维 (0D) 有机金属化物与异质金属为多功能发光应用提供了潜力.
- 对于先进的光电子设备来说,实现具有多个不同的光辐射的单相材料至关重要.
研究的目的:
- 报告一种新的 (C8H20N) 4SbMnCl9单晶,其中包含两个不同的发光中心:[SbCl5]2-五面体和[MnCl4]2-四面体.
- 调查依赖激发的发光特性,并探索其在白色发光二极管 (WLED) 和X射线闪光灯中的应用.
主要方法:
- 单晶 (C8H20N) 4SbMnCl9.9的合成和表征
- 在各种激发波长 (近紫外线,蓝光) 和X射线照明下进行光发光谱学.
- 作为WLED和X射线闪光灯的光剂的性能评估,包括检测极限和分辨率测量.
主要成果:
- 该材料表现出取决于激发的发光:近紫外线 (91.5%PLQY) 下的[SbCl5]2-的色辐射和蓝光下的[MnCl4]2-的绿色辐射 (66.8%PLQY).
- 在X射线照明下,由于高能光子的吸收,同时观察到色和绿色的辐射.
- 作为n-UV和蓝芯片送的WLED的光剂以及具有低检测极限 (60.79 nGyair s-1) 和高分辨率 (13.5 lp mm-1) 的X射线闪光器的证明潜力.
结论:
- 在 (C8H20N) 4SbMnCl9中Sb-Sb,Mn-Mn和Sb-Mn中心之间的微不足道的相互作用使得明确,高效和可调节激发的发光.
- 这种新的0D混合材料为开发多功能光电子设备提供了一个有前途的平台,包括WLED和先进的X射线成像系统.
- 提出了一个新的结构设计策略,用于制造具有多颜色排放能力的0D混合动力.
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