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用于高性能循环极化有机发光二极管的旋谷锁电发光

Yibo Deng¹, Teng Long¹, Pingyang Wang¹

¹Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.

Journal of the American Chemical Society

|September 12, 2024

概括

我们使用光子旋转轨道合开发了新型旋转谷锁定循环极化有机发光二极管 (CP-OLED). 这一突破以简单的结构实现了高性能,为先进显示器铺平了道路.

科学领域:

光电子产品
材料科学
光子学

背景情况:

循环极化有机发光二极管 (CP-OLED) 对于先进的显示和光子技术至关重要.
现有的CP-OLED在设备性能方面存在局限性,包括低效率,广泛的排放和复杂的结构.
对于具有高性能,高成本效益的CP-OLED具有狭带发射和高定向性等特定特征的需求正在增加.

研究的目的:

展示一种超越传统设备局限性的新型CP-OLED.
通过简化设备架构实现高性能指标,如高外部量子效率,发光度和不对称系数 (gEL).
探索光子自旋轨道合在不依赖于合发射器的情况下用于CP-OLED应用的潜力.

主要方法:

使用光子旋转轨道合的旋转谷锁CP-OLED的开发.
基于相反圆极化的光子从不同的光学谷中发射的原理制造的装置.
设备性能的表征,包括发射频谱,外部量子效率,发光度和电光不对称系数 (gEL).

主要成果:

达到16nm的频谱宽度的窄带辐射.
显示了3.65%的高外部量子效率和接近98,000cd/m2的最大亮度.
获得高电光不对称系数 (gEL) 高达1.80,使其成为性能最高的活性单晶CP-OLED.

结论:

与传统方法相比,开发的旋谷锁CP-OLED提供了更高的性能和更简单的结构.
使用光子自旋轨道合的策略提供了一个可行的途径,用于创建没有奇拉发射器的高性能CP-OLED.
这种方法为三维显示器和芯片内CP-OLED的实际应用开辟了新的可能性.

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