小分子有机电致发光材料研究进展

 有机电致发光器件（OLED）具有效率高、亮度高、驱动电压低、响应速度快以及能实现大面积光电显示等优点，因其在平板显示和高效照明领域具有极大的应用前景而引起广泛关注。在OLED的制备及优化中，有机电致发光材料包括小分子和聚合物的选择至关重要，其中有机小分子发光材料具有确定的相对分子质量、化学修饰性强、选择范围广、易于提纯、荧光量子产率高以及可以产生红、绿、篮等各种颜色光等优点，一直受到国内外学者的广泛重视。本文综述了近年来国内外有机电致发光小分子发光材料的研究状况，对有机小分子电致发光材料进行分类和评述，并简要介绍了小分子OLED的应用前景和发展趋势。

Research Progress on Small Molecular Materials for Organic Lightemitting Diodnes

Because of Organic Light-Emitting Diodes (OLEDs) have excellent properties of high light-emitting efficiency, high brightness, low driving voltage, fast response, potential for fabrication of large-area full-color flat panel display and so on, the OLEDs have been extensively studied due to their possible applications for flat panel color displays and illumination source. The choice of organic electroluminescent materials, which include polymer and molecular material, is a key issue for the preparation and optimization of the OLEDs. The organic small molecular electroluminescent materials have the properties of definite molecular mass, high chemical modification, wide select range, easy purification, high fluorescence quantum yield and variety of color such as red, green, and blue and so on. Hence, the research and development of light-emitting layer of OLEDs materials have been caused extensive attention all over the world. In this work, the recent progress of organic electroluminescent materials at home and abroad was introduced and various kinds of organic small molecular materials used for organic electroluminescence at present were mainly described. Extensive application prospect and developing tendency of OLEDs were briefly described as well.