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高n相抑制用于高效和稳定的蓝色矿发光二极管

Piaoyang Shen^1,2,3, Shuo Ding^1,4,3, Zhaobing Tang^1,3,5

¹Laboratory of Advanced Nano-Optoelectronic Materials and Devices, Qianwan Institute of CNITECH, Ningbo, Zhejiang, 315336, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|July 12, 2024

概括

研究人员使用化 (ZnBr2) 改进了蓝色矿发光二极管 (PeLED),以优化相位分布,增强能量传输和减少重组,以提高效率.

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.
固态化学固态化学

背景情况:

由于其优良的光学和电子特性,近二维矿对发光二极管 (PeLED) 具有前景.
蓝色PeLED面临的挑战是,由于混合的多维相分布导致的能源传输和性能问题不高效.

研究的目的:

为了提高蓝色PeLED的效率和性能.
调节近二维矿的相分布,以改善蓝光发射.

主要方法:

在矿结构中引入过渡金属盐,特别是化 (ZnBr2).
使用ZnBr2抑制高n相矿的核化,从而控制相位分布.
研究ZnBr2对能量转移路径,能量水平对齐和非辐射重组的影响.

主要成果:

ZnBr2有效调节相位分布,缩短了对于蓝色辐射至关重要的能量传输路径.
随着ZnBr2的加入,观察到更好的能量水平匹配和减少的非辐射重组.
一个高效的蓝色PeLED被制造出来,在486nm时达到16.2%的最大外部量子效率 (EQE).

结论:

添加ZnBr2提供了一个可行的策略来调整近二维矿的相分布.
这种方法显著提高了蓝色PeLED电解发光效率和性能.
这些发现为开发高效的蓝色矿发光二极管提供了有希望的途径.

关键词:

蓝色排放的蓝色排放外部量子效率是指外部量子效率.矿的发光二极管可以发光.几乎2D的矿膜.

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