摘要
白光有机电致发光器件(WOLED)具备很多天然的技术优点,可以应用在下一代照明设备上,因此正成为研究的新热点.但是由于传统的多层或单层WOLED结构受染料浓度和载流子传输难以控制等因素的限制,使进一步优化器件效率和白光色度稳定成为WOLED发展的瓶颈.本工作针对传统WOLED存在的上述问题,设计制备了新型的具有颜色互补的黄色和蓝色发光条纹,交替排列所组成的WOLED器件,并且分析了黄光—蓝光条纹尺寸和改变照射角度对器件光照稳定性的影响.
White organic light-emitting devices （WOLEDs） have a few technical merits for lighting application. Generally, doping-concentration and carriers-transporting effect inherent in traditional WOLEDs, however, complicate the optimization of device efficiency and color-stability characteristics. In this paper, we design and fabricate a novel WOLED concept,in which an alternant yellow and blue lighting stripe structure is used. We analyze the emission characteristic of this alternate stripe WOLED （AS-WOLED） as a function of yellow and blue stripe size and lighting angle. From the comprehensive analysis, trend in the dependence of emission characteristic on device structure is extracted, and accordingly, a general method for optimizing color characteristics of AS-WOLEDs is suggested.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2011年第7期762-767,共6页
Acta Physica Sinica
基金
国家重点基础研究发展计划(批准号:2010CB327701)
国家高科技研究发展计划(批准号:2011AA03A110)
国家自然科学基金(批准号:60706018,60906021,60977024,60876032,60907013,41001302)
教育部高等学校博士学科点专项科研基金(批准号:20070183088)资助的课题~~
关键词
白光
色度稳定
效率
条纹结构
white light-emitting, color-stability, efficiency, alternatant-stripes
