非载流子注入模式下发光二极管的理论研究

Theoretical Study of LED Operating in Noncarrier Injection Mode.

作者信息

Wu Chaoxing, Wang Kun, Guo Tailiang

机构信息

College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China.

Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China.

出版信息

Nanomaterials (Basel). 2022 Jul 23;12(15):2532. doi: 10.3390/nano12152532.

DOI:10.3390/nano12152532

PMID:35893500

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9330230/

Abstract

Non-carrier injection (NCI) mode is an emerging driving mode for light-emitting diodes (LEDs) with numerous advantages. Revealing the relationship between the current and the applied alternating voltage in mathematical formulas is of great significance for understanding the working mechanism of NCI-LEDs and improving device performance. In this work, a theoretical model of the relationship between NCI-LED current and time-varying voltage is constructed. Based on the theoretical model, the real-time current is derived, which is consistent with the experimental results. Key parameters that can improve device performance are discussed, including voltage amplitude, frequency, equivalent capacitance, and LED reverse current. The theory presented here can serve as an important guidance for the rational design of the NCI-LEDs.

摘要

非载流子注入（NCI）模式是一种具有众多优势的发光二极管（LED）新兴驱动模式。用数学公式揭示电流与所施加交流电压之间的关系对于理解NCI-LED的工作机制以及提高器件性能具有重要意义。在这项工作中，构建了NCI-LED电流与随时间变化电压之间关系的理论模型。基于该理论模型，推导出了与实验结果一致的实时电流。讨论了可提高器件性能的关键参数，包括电压幅度、频率、等效电容和LED反向电流。这里提出的理论可为NCI-LED的合理设计提供重要指导。