基于磷光材料的电致发光二极管研究进展

doi:10.11944/j.issn.1000-0518.2018.08.180154

摘要/Abstract

摘要：

电致发光二极管(LEDs)具有能耗低、寿命长、绿色环保等优点,在固态照明、全色显示等领域具有广阔的应用前景。与传统的荧光电致LEDs相比,磷光电致LEDs能够同时利用单重态和三重态激子,理论上可以使器件的内量子效率达到100%,突破5%的外量子效率极限。因此,发展高效的磷光材料以及实现其在电致LEDs中的应用是非常有意义的。本文综述了目前主要的磷光材料,包括有机金属配合物、纯有机分子、聚合物、金属有机框架材料和碳量子点等,并总结了稀有金属配合物和纯有机分子在电致磷光 LEDs中的研究进展,同时对电致磷光LEDs的发展前景进行展望。

关键词: 电致发光二极管, 磷光材料, 有机金属配合物, 金属有机框架, 碳量子点

Abstract:

The development of electroluminescent light-emitting diodes(LEDs) has been received widespread attention for their potential applications in solid-state lighting technology, full-color displays due to their superior properties such as energy-saving, robust, long-lifetime and environment-friendly features. The notable advantage of electrophosphorescent LEDs is that they can simultaneously utilize both singlet and triplet exciton states which can reach to 100% internal quantum efficiency theoretically compared with those of conventional fluorescent LEDs. Therefore, it is highly desired to develop LEDs based on phosphorescent materials. In this review, we mainly discussed the latest researches on phosphorescent materials, including organometallic complexes, organic molecules, polymers, metal-organic frameworks and carbon quantum dots, etc., and focused on the applications of electrophosphorescent materials in LEDs. We hope this review will provide critical insights to inspire more exciting researches on environment-friendly phosphorescent materials for the application of electrophosphorescent LEDs in the near future.

Key words: electrophosphorescent light-emitting diodes, phosphorescent materials, organometallic complexes, metal-organic frameworks, carbon quantum dots

袁廷,孟婷,李淑花,范楼珍. 基于磷光材料的电致发光二极管研究进展[J]. 应用化学, 2018, 35(8): 871-880.

YUAN Ting,MENG Ting,LI Shuhua,FAN Louzhen. Recent Development of Electroluminescent Diodes Based on Phosphorescent Materials[J]. Chinese Journal of Applied Chemistry, 2018, 35(8): 871-880.

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