Highly Efficient and Color-Stable Long Lifetime Green Light-Emitting Diodes Comprising Tridentate Thiol Capped Quantum Dots

摘要：

In this paper, the green quantum dots (QDs) capped with a novel ligand, tris(mercaptomethyl)nonane (TMMN), are fabricated as the light emitting layer for efficient and bright QD-based light-emitting diodes (QLEDs).These TMMN capped QDs (TMMN-QDs)exhibit well-preserved photoluminescence properties with quantum yields of ～90％ after ligand exchange.The TMMN-QDs based LEDs have the following features that are superior to the long-chain oleic acid (OA) coated QDs based devices: (1) TMMN-QDs based devices are reported with a maximum luminance of over 110,000 cd m-2, a maximum EQE of 16.5％ corresponding to a power efficiency and current efficiency of 57.6 lm W-1 and 70.1 cd A-1 respectively.

关键词： QLEDs ligand exchange electroluminescence lifetime external quantum efficiency

作者: LI Zhaohan HU Yongxiang SHEN Huaibin LIN Qingli WANG Lei WANG Hongzhe ZHAO Weili LI Linsong LI Z. HU Y. SHEN H. LIN Q. WANG L. WANG H. ZHAO W. LI L.

作者单位: Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004, China

会议类型: 国际会议

会议名称: the 2016 International Seminar on Advanced Materials Research(2016先进材料研究国际研讨会)

会议地点: 昆明

会议语种:英文

页码: 35-35

在线出版日期: 2016-10-14（万方平台首次上网日期，不代表论文的发表时间）