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中文摘要：
作为下一代固态照明光源，白光有机电致发光二极管（whiteorganiclight-emittingdiodes，wOLEDs）由于其高效、节能、环保等特点，已经引起了广泛的关注，将其用做照明光源的研究和应用也取得了长足的发展。文中首先简述了w0LEDs的发光原理，总结了目前常见的w0LEDs的结构和常用的发光材料，重点介绍了多发射层白光器件、多重掺杂单发射层白光器件、基于激基缔合物和激基复合物发射的白光器件、p-i-n结构的白光器件等器件结构的发光机理及其优缺点。本文依据WOLEDs高效率、高亮度、高显色性、长寿命的实用条件，详细解释了器件效率，色纯度，相关色温和器件寿命等性能评价标准。我们还分析了WOLEDs目前亟需解决的技术瓶颈，并针对器件效率和器件寿命两个主要方面提出了相应的改善方案。介绍了世界上照明用WOLEDs各公司的研究进展并对其市场前景做出了展望。
英文摘要：
Lighting accounts for approximately 22 percent of the electricity consumed in buildings in the United States, with 40 percent of that amount consumed by inefficient incandescent lamps. This has generated increased interest in the use of white elec- troluminescent organic light-emitting devices（WOLEDS）as the next generation solid-state lighting source, owing to their poten- tial for significantly improved efficiency over incandescent sources, combined with low-cost, high-throughput manufacturability. The research and application of the devices have witnessed great progress. WOLEDS have incomparable advantages for its special characteristics. This progress report sketched the principle of WOLEDS and provided some common structures, and further in- vestigation of the mechanism of different structures was made. Meanwhile, the key technologies of WOLEDS were summarized. Finally, the latest research progress of WOLEDS was reviewed.
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