题名 | Efficient vacuum-free-processed quantum dot light emitting diodes with printable liquid metal cathodes |
作者 | |
通讯作者 | Chen, Shuming |
发表日期 | 2016-11-07
|
DOI | |
发表期刊 | |
ISSN | 2040-3364
|
EISSN | 2040-3372
|
卷号 | 8期号:41页码:17765-17773 |
摘要 | Colloidal quantum dot light-emitting diodes (QLEDs) are recognized as promising candidates for next generation displays. QLEDs can be fabricated by low-cost solution processing except for the metal electrodes, which, in general, are deposited by costly vacuum evaporation. To be fully compatible with the low-cost solution process, we herein demonstrate vacuum-free and solvent-free fabrication of electrodes using a printable liquid metal. With eutectic gallium-indium (EGaIn) based liquid metal cathodes, vacuum-free-processed QLEDs are demonstrated with superior external quantum efficiencies of 11.51%, 12.85% and 5.03% for red, green and blue devices, respectively, which are about 2-, 1.5-and 1.1-fold higher than those of the devices with thermally evaporated Al cathodes. The improved performance is attributable to the reduction of electron injection by the native oxide of EGaIn, which serves as an electron-blocking layer for the devices and thus improves the balance of carrier injection. Also, the T-50 half-lifetime of the vacuum-free-processed QLEDs is about 2-fold longer than that of the devices with Al cathodes. Our results demonstrate that EGaIn-based solvent-free liquid metals are promising printable electrodes for realizing efficient, low-cost and vacuum-free-processed QLEDs. The elimination of vacuum and high-temperature processes significantly reduces the production cost and paves the way for industrial roll-to-roll manufacturing of large area displays. |
相关链接 | [来源记录] |
收录类别 | |
语种 | 英语
|
学校署名 | 第一
; 通讯
|
资助项目 | National Key Research and Development Program of China[2016YFB0401702]
|
WOS研究方向 | Chemistry
; Science & Technology - Other Topics
; Materials Science
; Physics
|
WOS类目 | Chemistry, Multidisciplinary
; Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
; Physics, Applied
|
WOS记录号 | WOS:000387331100005
|
出版者 | |
EI入藏号 | 20164402959117
|
EI主题词 | Aluminum
; Cathodes
; Costs
; Liquid Metals
; Nanocrystals
; Organic Light Emitting Diodes (Oled)
; Semiconductor Quantum Dots
; Vacuum Evaporation
|
EI分类号 | Metallurgy:531.1
; Aluminum:541.1
; Vacuum Applications:633.1
; Semiconductor Devices And Integrated Circuits:714.2
; Nanotechnology:761
; Cost And Value Engineering
; Industrial Economics:911
; Quantum Theory
; Quantum Mechanics:931.4
|
来源库 | Web of Science
|
引用统计 |
被引频次[WOS]:44
|
成果类型 | 期刊论文 |
条目标识符 | //www.snoollab.com/handle/2SGJ60CL/29374 |
专题 | 工学院_电子与电气工程系 |
作者单位 | Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China |
第一作者单位 | 电子与电气工程系 |
通讯作者单位 | 电子与电气工程系 |
第一作者的第一单位 | 电子与电气工程系 |
推荐引用方式 GB/T 7714 |
Peng, Huiren,Jiang, Yibin,Chen, Shuming. Efficient vacuum-free-processed quantum dot light emitting diodes with printable liquid metal cathodes[J]. Nanoscale,2016,8(41):17765-17773.
|
APA |
Peng, Huiren,Jiang, Yibin,&Chen, Shuming.(2016).Efficient vacuum-free-processed quantum dot light emitting diodes with printable liquid metal cathodes.Nanoscale,8(41),17765-17773.
|
MLA |
Peng, Huiren,et al."Efficient vacuum-free-processed quantum dot light emitting diodes with printable liquid metal cathodes".Nanoscale 8.41(2016):17765-17773.
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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 | 操作 | |
c6nr05181b.pdf(4004KB) | -- | -- | 限制开放 | -- |
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