QLED研究及显示应用进展

发布时间：2018-04-14 19:29

本文选题：量子点 + 电致发光　；参考：《材料导报》2017年19期

【摘要】：胶体量子点由于具有高的量子效率、窄的激发光谱、独特的尺寸依赖激发光谱和良好的溶液加工兼容性等优异特性,在高色彩质量显示方面有着巨大的应用潜力。随着量子效率提升及电致发光原理、激子衰减机制、器件结构优化和电荷有效输运等研究的持续深入,QLED的发光效率从小于0.01%提升到20.5%,已接近商业化OLED的效率。从显示技术的长远发展来看,量子点电致发光显示将超越光致发光的量子点增亮膜和量子点彩色滤光片,有望成为下一代主流显示技术。根据"材料—器件—显示"的主线,依次对量子点材料发光特性和材料类别,以及发光器件的结构类型、发光机制和效率提升等方面展开概述,最后简要介绍了量子点电致发光显示的相关技术挑战和发展前景。
[Abstract]:Colloidal quantum dots have great application potential in high color quality display due to their excellent properties such as high quantum efficiency, narrow excitation spectrum, unique size dependent excitation spectrum and good compatibility of solution processing.With the enhancement of quantum efficiency and the principle of electroluminescence, the mechanism of exciton attenuation, the structure optimization of devices and the effective transport of charge, the luminescence efficiency of OLED has been increased from 0.01% to 20.5%, which is close to the efficiency of commercial OLED.From the long-term development of display technology, quantum dot electroluminescent display will surpass the photoluminescence quantum dot brightening film and quantum dot color filter, which is expected to become the next generation of mainstream display technology.According to the main line of "material-device-display", the luminescence characteristics and material types of quantum dots, the structure type, luminescence mechanism and efficiency improvement of quantum dots are summarized.Finally, the related technical challenges and development prospects of quantum dot electroluminescent display are briefly introduced.
【作者单位】：海信集团多媒体研发中心显示研发部;上海交通大学薄膜与微细技术教育部重点实验室;山东科技大学材料科学与工程学院纳米工程所;
【分类号】：TN312.8

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