Department of Chemistry, University of Cologne, Luxemburger Str. 116, 50939 Cologne, Germany.
Adv Mater. 2011 Jan 11;23(2):233-48. doi: 10.1002/adma.201002636.
White organic light-emitting diodes (WOLEDs) offer a range of attractive characteristics and are in several regards conceptually different from most currently used light sources. From an application perspective, their advantages include a high power efficiency that rivals the performance of fluorescent lamps and inorganic LEDs and the potential for a very low cost of manufacturing. As flat-panel light sources they are intrinsically glare-free and generate light over a large area. WOLEDs are constantly improving in terms of performance, durability, and manufacturability, but these improvements require joint research efforts in chemistry and the materials sciences to design better materials as well as in physics and engineering to invent new device concepts and design suitable fabrication schemes, a process that has generated many exciting scientific questions and answers. This article reviews current developments in the field of WOLEDs and puts a special focus on new device concepts and on approaches to reliable and cost-efficient WOLED manufacturing.
白色有机发光二极管（WOLED）具有一系列吸引人的特性，在许多方面与目前大多数使用的光源在概念上有所不同。从应用的角度来看，其优点包括与荧光灯和无机 LED 相当的高效率以及非常低的制造成本的潜力。作为平板光源，它们本质上无眩光并且可以在大面积上产生光。WOLED 在性能、耐久性和可制造性方面不断得到改善，但这些改进需要在化学和材料科学方面进行联合研究，以设计更好的材料，以及在物理和工程方面进行创新的设备概念和设计合适的制造方案，这一过程产生了许多令人兴奋的科学问题和答案。本文综述了 WOLED 领域的当前发展，并特别关注新的设备概念以及可靠和具有成本效益的 WOLED 制造方法。
