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arXiv 1302.3435cond-mat.mtrl-sciphysics.chem-phphysics.optics
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白光有机电致发光器件的研究现状与展望

White organic light-emitting diodes: Status and perspective

Sebastian Reineke, Michael Thomschke, Björn Lüssem, Karl Leo

摘要:

白光有机发光二极管(OLED)是由有机半导体材料制成的超薄、大面积光源。在过去的几十年里,人们一直在寻找合适的材料来实现高效的单色和白色OLED。由于其高效率,颜色可调性和颜色质量,白色OLED正在成为下一代光源之一。在这篇综述中,我们讨论了各种器件的概念,介绍了实现基于聚合物和小分子有机材料的白光OLED的物理。由于大约80%的内部产生的光子被困在薄膜层结构内,我们把第二个重点放在审查有前途的概念,以改善光耦合输出。

英文摘要:

White organic light-emitting diodes (OLEDs) are ultra-thin, large-area light sources made from organic semiconductor materials. Over the last decades, much research has been spent on finding the suitable materials to realize highly efficient monochrome and white OLEDs. With their high efficiency, color-tunability, and color-quality, white OLEDs are emerging to become one of the next generation light sources. In this review, we discuss the physics of a variety of device concepts that are introduced to realize white OLEDs based on both polymer and small molecule organic materi als. Owing to the fact that about 80 % of the internally generated photons are trapped within the thin-film layer structure, we put a second focus on reviewing promising concepts for improved light outcoupling.

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