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Significant performance enhancement of inverted organic light-emitting diodes by using ZnIx as a hole-blocking layer
Cheng, Chuan-Hui1; Zhang, Bi-Long1; Sun, Chao1; Li, Ruo-Xuan1; Wang, Yuan1; Tian, Wen-Ming2; Zhao, Chun-Yi2; Jin, Sheng-Ye2; Liu, Wei-Feng1,3; Luo, Ying-Min1; Du, Guo-Tong1,4; Cong, Shu-Lin1
刊名JOURNAL OF APPLIED PHYSICS
2017-06-21
DOI10.1063/1.4986435
121
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Physics, Applied
研究领域[WOS]Physics
关键词[WOS]ELECTRON-INJECTION LAYER ; TRANSPARENT ; DEVICES ; EFFICIENCY
英文摘要A highly efficient inverted organic light emitting diode using 1.0 nm-thick ZnIx as a hole-blocking layer is developed. We fabricate devices with the configuration ITO/ZnIx (1.0 nm)/Alq(3) (50 nm)/NPB (50 nm)/MoO3 (6.0 nm)/Al (100 nm). The deposition of a ZnIx layer increases the maximum luminance by two orders of magnitude from 13.4 to 3566.1 cd/m(2). In addition, the maximum current efficiency and power efficiency are increased by three orders of magnitude, and the turn-on voltage to reach 1 cd/m(2) decreases from 13 to 8V. The results suggest that the electron injection efficiency is not improved by introducing a ZnIx layer. Instead, the improved device performance originates from the strong hole-blocking ability of ZnIx. This work indicates that layered materials may lead to novel applications in optoelectronic devices. Published by AIP Publishing.
语种英语
WOS记录号WOS:000404047400029
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/152087
专题中国科学院大连化学物理研究所
作者单位1.Dalian Univ Technol, Sch Phys, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
3.Hainan Univ, Mech & Elect Engn Coll, Haikou 570228, Peoples R China
4.Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China
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GB/T 7714
Cheng, Chuan-Hui,Zhang, Bi-Long,Sun, Chao,et al. Significant performance enhancement of inverted organic light-emitting diodes by using ZnIx as a hole-blocking layer[J]. JOURNAL OF APPLIED PHYSICS,2017,121.
APA Cheng, Chuan-Hui.,Zhang, Bi-Long.,Sun, Chao.,Li, Ruo-Xuan.,Wang, Yuan.,...&Cong, Shu-Lin.(2017).Significant performance enhancement of inverted organic light-emitting diodes by using ZnIx as a hole-blocking layer.JOURNAL OF APPLIED PHYSICS,121.
MLA Cheng, Chuan-Hui,et al."Significant performance enhancement of inverted organic light-emitting diodes by using ZnIx as a hole-blocking layer".JOURNAL OF APPLIED PHYSICS 121(2017).
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