柔性有机发光二极管材料与器件研究进展-中国材料进展

文章信息/Info

Title:: Recent advances in organic light-emitting diodes for flexible applications

Author(s):: Chen Li; Genmao Huang; Lian Duan*; Yong Qiu; Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University

摘要:: 有机发光二极管（organic light emitting diodes, 简称OLED）是全固态的薄膜发光器件。由于OLED的可柔性制备、低驱动电压、低功耗等优点，其在未来的可穿戴应用上具有广阔的发展前景。目前，小尺寸的OLED显示器已经实现商业化，大尺寸的OLED电视和照明也以有产品问世，但OLED器件的可穿戴应用尚处于探索期。本文综述了近年来基于可穿戴应用的柔性OLED材料及器件技术的研究进展。综述的重点内容包括柔性基板材料、柔性薄膜晶体管材料、柔性OLED发光层技术、柔性薄膜封装材料与技术等几个方面的研究进展。此外，本文介绍了近几年来兴起的一些新型的柔性器件制备技术，如柔性纤维布基底技术、纤维状聚合物发光电化学池技术、对称平面层器件结构和狭缝涂布式印刷技术等。最后，本文对柔性OLED材料与器件技术的发展趋势进行了展望。

Abstract:: Organic light-emitting diodes (OLEDs) are solid state light emitting devices. They have broad prospects in the field of wearable devices owing to their flexibility nature, low driving voltage and low power consumption. Small to medium size OLED displays have already been commercialized. Large OLED TVs and OLED lightings have also emerged in real applications. We reviewed the most focused issues as well as the main progress in the field of flexible OLED technology in the recent years. The developing trends of flexible substrate material, flexible thin film transistor material, flexible OLED emitting layer and flexible thin film encapsulation layer are summarized. We also introduce some emerging flexible device fabrication technologies, such as flexible fabric substrate, polymer fibre based light emitting cell, the symmetric panel stacking device structure and slot-die coating technology. Lastly, we look to the prospect of the flexible OLED materials and devices technology.