ShanghaiTech University Knowledge Management System
Highly efficient quantum dot near-infrared light-emitting diodes | |
Gong, Xiwen1; Yang, Zhenyu1; Walters, Grant1; Comin, Riccardo1; Ning, Zhijun1,2; Beauregard, Eric1; Adinolfi, Valerio1; Voznyy, Oleksandr1; Sargent, Edward H.1 | |
2016-04 | |
发表期刊 | NATURE PHOTONICS |
ISSN | 1749-4885 |
卷号 | 10期号:4页码:253-+ |
发表状态 | 已发表 |
DOI | 10.1038/NPHOTON.2016.11 |
摘要 | Colloidal quantum dots (CQDs) are emerging as promising materials for constructing infrared sources in view of their tunable luminescence, high quantum efficiency and compatibility with solution processing(1). However, CQD films available today suffer from a compromise between luminescence efficiency and charge transport, and this leads to unacceptably high power consumption. Here, we overcome this issue by embedding CQDs in a high-mobility hybrid perovskite matrix. The new composite enhances radiative recombination in the dots by preventing transport-assisted trapping losses; yet does so without increasing the turn-on voltage. Through compositional engineering of the mixed halide matrix, we achieve a record electroluminescence power conversion efficiency of 4.9%. This surpasses the performance of previously reported CQD near-infrared devices two-fold, indicating great potential for this hybrid QD-in-perovskite approach. |
收录类别 | SCI ; EI |
语种 | 英语 |
资助项目 | King Abdullah University of Science and Technology (KAUST)[KUS-11-009-21] |
WOS研究方向 | Optics ; Physics |
WOS类目 | Optics ; Physics, Applied |
WOS记录号 | WOS:000372978900014 |
出版者 | NATURE PUBLISHING GROUP |
EI入藏号 | 20160902030529 |
EI主题词 | Efficiency ; Energy efficiency ; Infrared devices ; Light ; Light emitting diodes ; Light sources ; Luminescence ; Nanocrystals ; Perovskite ; Semiconductor quantum dots |
WOS关键词 | TRANSPORT ; SOLIDS |
原始文献类型 | Article |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1881 |
专题 | 物质科学与技术学院_PI研究组_宁志军组 |
通讯作者 | Sargent, Edward H. |
作者单位 | 1.Univ Toronto, Dept Elect & Comp Engn, 10 Kings Coll Rd, Toronto, ON M5S 3G4, Canada 2.ShanghaiTech Univ, Sch Phys Sci & Technol, Haike Rd 100, Shanghai 201210, Peoples R China |
推荐引用方式 GB/T 7714 | Gong, Xiwen,Yang, Zhenyu,Walters, Grant,et al. Highly efficient quantum dot near-infrared light-emitting diodes[J]. NATURE PHOTONICS,2016,10(4):253-+. |
APA | Gong, Xiwen.,Yang, Zhenyu.,Walters, Grant.,Comin, Riccardo.,Ning, Zhijun.,...&Sargent, Edward H..(2016).Highly efficient quantum dot near-infrared light-emitting diodes.NATURE PHOTONICS,10(4),253-+. |
MLA | Gong, Xiwen,et al."Highly efficient quantum dot near-infrared light-emitting diodes".NATURE PHOTONICS 10.4(2016):253-+. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 |
修改评论
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。