通过原子和分子共修改增强石墨碳化物的光发光和电光发光

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Kai Zhang^1,2, Ruili Song¹, Ning Wu¹

¹Key Laboratory of Eco-Chemical Engineering, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao, Shandong 266042, People's Republic of China.

The journal of physical chemistry letters

|January 19, 2024

概括

合成了添加芳香碳化物 (B-PhCN) 材料,显著提高了光发光量子产量 (PLQYs),用于改进的光电子设备. 这一突破为高性能,低成本的发光应用提供了途径.

科学领域:

材料科学材料科学材料科学
光电学是指光电子产品.
纳米技术纳米技术

背景情况:

石墨碳化物 (g-CN) 具有理想的光电子特性,但受到低光发光量子产量 (PLQYs) 的影响.
在g-CN材料中的低PLQY阻碍了它们在先进的发光器件中的实际应用.

研究的目的:

为了合成添加的新型芳香碳化物 (B-PhCN) 材料.
调查兴奋剂和修饰对碳化物的结构和光学特性的影响.
为了提高基于碳化物的光电子设备的PLQY和性能.

主要方法:

2,4-米诺-6--1,3,5-氨酸和酸的直接热聚合.
合成的B-PhCN样本的结构和光学特性.
基于B-PhCN的发光二极管 (LED) 的制造和测试.

主要成果:

获得的最高PLQY为B-PhCN20的40.7%,比原始碳化物 (p-CN) 增加6.8倍.
基于B-PhCN20的LED显示出比基于p-CN的设备高3.5倍的最大发光率 (1494 cd m-2) 和4.9倍的最大外部量子效率 (1.03%).
证实兴奋剂和修饰显著影响光电子特性.

结论:

合成的B-PhCN材料显示显著改善了PLQY和设备性能.
这项研究为设计具有成本效益,高性能碳化物基础的光电子设备提供了宝贵的参考.
B-PhCN代表了下一代发光应用的一个有前途的材料.

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