蓝色有机电致发光材料及器件的研究进展

doi:10.11944/j.issn.1000-0518.2015.08.150134

摘要/Abstract

摘要：

有机电致发光器件因在全彩平板显示和固态照明领域中具有广阔的应用前景, 而受到人们的广泛关注。时至今日, 与现有的红色和绿色有机电致发光材料和器件相比, 具有优越综合性能的蓝色有机电致发光材料和器件却始终匮乏。相对而言, 蓝光材料具有较宽的能隙, 因而很难获得低电压、高效率和良好稳定性的深蓝光器件。通常, 白色有机电致发光器件可以通过混合三基色或者两种颜色的方法获得。但是无论哪种方法, 蓝光材料均是必不可少的。另外, 还可以通过能量传递将蓝光转化为红光和绿光。因此, 研发出具有优越综合性能的蓝光材料对有机电致发光器件的推广及应用十分关键。本文综述了近年来蓝色荧光材料、蓝色磷光材料的研究进展以及蓝光材料在蓝色和白色有机电致发光器件中的应用, 并结合现有工作, 对蓝色有机电致发光材料的研究和应用前景进行展望。

关键词: 有机电致发光, 蓝光材料, 荧光和磷光材料, 高效率, 良好稳定性

Abstract:

Organic light-emitting diodes(OLEDs) have attracted great interest because of their potential applications in full-color flat-panel displays and solid-state lighting. Compared with great progress of organic red- and green-light-emitting materials and diodes, few blue-light-emitting materials and diodes with high performances have been reported. It is really difficult to realize organic deep-blue device with low operating voltage, high luminescent efficiency and good stability because of the relatively wider energy gap of blue-light-emitting materials. In general, white organic light-emitting diodes(WOLEDs) can be obtained by incorporating either three primary colors(red, green and blue) or two complementary colors(blue and yellow or orange). No matter which method, organic blue-light-emitting materials are necessary. In addition, blue light can generate other low-energy emission, such as green and red, by utilizing a color-change medium. So the realization of organic blue-emitting materials with high performances is critical for the development and application of OLEDs. In this paper, we clarified the recent progress of investigations on organic blue fluorescent materials and phosphorescent materials. The application of organic blue light-emitting materials in the blue and white organic light-emitting diodes was also introduced. Based on the present work, the investigation and application of organic blue light-emitting materials were finally prospected.

Key words: organic electroluminescence, blue-emitting materials, fluorescent and phosphorescent materials, high luminescent efficiency, good stability

中图分类号:

崔荣朕, 唐艳茹, 马玉芹, 杨秀云, 耿丽华, 李云辉. 蓝色有机电致发光材料及器件的研究进展[J]. 应用化学, 2015, 32(8): 855-872.

CUI Rongzhen, TANG Yanru, MA Yuqin, YANG Xiuyun, GENG Lihua, LI Yunhui. Research Progress of Investigation on Organic Blue-Light-Emitting Materials and Diodes[J]. Chinese Journal of Applied Chemistry, 2015, 32(8): 855-872.

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