Tianwen Xia;Le Wang;Enguo Chen;Zhonghang Huang;Chunli Yan;Dalei Wu;Q. Frank Yan;Jie Sun
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引用次数: 0
Abstract
Earlier researchers have designed nanostructures such as stripe gratings (SG) or photonic crystals array (PhCA) to improve the light extraction efficiency (LEE) of light-emitting diodes (LEDs) by the diffraction mechanism. However, through k-domain method and simulation analysis, this letter finds that although SG perform well in 2D simulation, their effect drops sharply in 3D space, a phenomenon being overlooked in the community. This letter explains the diffraction mechanism of LEDs with nanostructure in 2D and 3D space through K-domain analysis, and reveals the inaccuracy of simulating LED with SG in 2D space. Unlike SG, PhCA offers diffraction in two directions and may be more suitable for LEDs.
早期研究人员设计了条纹光栅（SG）或光子晶体阵列（PhCA）等纳米结构，利用衍射机制提高发光二极管（LED）的光提取效率（LEE）。然而，通过 k 域方法和仿真分析，本文发现条纹光栅虽然在二维仿真中表现良好，但在三维空间中效果却急剧下降，而这一现象却被业界所忽视。本文通过 K 域分析解释了具有纳米结构的 LED 在二维和三维空间的衍射机制，并揭示了在二维空间使用 SG 模拟 LED 的不准确性。与 SG 不同，PhCA 提供两个方向的衍射，可能更适合 LED。
期刊介绍：
The IEEE Journal of Quantum Electronics is dedicated to the publication of manuscripts reporting novel experimental or theoretical results in the broad field of the science and technology of quantum electronics. The Journal comprises original contributions, both regular papers and letters, describing significant advances in the understanding of quantum electronics phenomena or the demonstration of new devices, systems, or applications. Manuscripts reporting new developments in systems and applications must emphasize quantum electronics principles or devices. The scope of JQE encompasses the generation, propagation, detection, and application of coherent electromagnetic radiation having wavelengths below one millimeter (i.e., in the submillimeter, infrared, visible, ultraviolet, etc., regions). Whether the focus of a manuscript is a quantum-electronic device or phenomenon, the critical factor in the editorial review of a manuscript is the potential impact of the results presented on continuing research in the field or on advancing the technological base of quantum electronics.
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