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基于矿的新纳米结构发光二极管,具有优越的光提取效率提升

Saeed Rahimi¹, Mehdi Eskandari², Davood Fathi³

¹Department of Electrical and Computer Engineering, Tarbiat Modares University (TMU), Tehran, Iran.

Scientific reports

|March 6, 2024

概括

这项研究提高了基于矿的发光二极管 (PELED) 的光提取效率 (LEE) 使用圆形架构. 这种创新的结构显著提升了LEE,提高了整体设备性能.

科学领域:

光电学是指光电子产品.
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

外部量子效率 (EQE) 对基于矿的发光二极管 (PELED) 至关重要.
提高EQE通常受光提取效率 (LEE) 优化方面的挑战所限制.
目前的PELED结构在最大限度地提高光输出方面扎.

研究的目的:

引入和研究一个创新的结构,以显著提升LEE在PELEDs.
探索影响LEE的各种参数,包括架构,双极方向,接触角度和层厚度.
为了实现PELEDs的光提取能力的大幅提高.

主要方法:

对于PELEDs,从平面到圆顶架构的过渡.
分析波导效应对新结构的影响.
系统地改变诸如双极方向,材料-基板接触角度和层厚度等参数.

主要成果:

圆顶架构显示LEE增加了十倍,从6%上升到59%.
通过调整参数进行进一步的优化,导致了令人印象深刻的LEE74%.
这项研究确定了最大限度地提高PELED光线提取效率的关键因素.

结论:

圆顶架构在增强LEE对PELEDs方面非常有效.
优化结构和材料参数可以显著改善光提取.
这项工作为开发高效率的PELEDs提供了一条途径.

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