期刊
ADVANCED FUNCTIONAL MATERIALS
卷 29, 期 51, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201903607
关键词
all-vacuum deposition; high-throughput combinatorial optimazitions; light-emitting diodes; perovskites
类别
资金
- National Key R&D Program of China [2016YFB070700702]
- 62nd China Postdoctoral Science Foundation [2017M622418]
- National Natural Science Foundation of China [51761145048, 61725401]
- HUST Key Innovation Team for Interdisciplinary Promotion [2016JCTD111]
- Fundamental Research Funds for the Central Universities [HUST:2019JYCXJJ004]
Light-emitting diodes (LEDs) based on lead halide perovskites demonstrate outstanding optoelectronic properties and are strong competitors for display and lighting applications. While previous halide perovskite LEDs are mainly produced via solution processing, here an all-vacuum processing method is employed to construct CsPbBr3 LEDs because vacuum processing exhibits high reliability and easy integration with existing OLED facilities for mass production. The high-throughput combinatorial strategies are further adopted to study perovskite composition, annealing temperature, and functional layer thickness, thus significantly speeding up the optimization process. The best rigid device shows a current efficiency (CE) of 4.8 cd A(-1) (EQE of 1.45%) at 2358 cd m(-2), and best flexible device shows a CE of 4.16 cd A(-1) (EQE of 1.37%) at 2012 cd m(-2) with good bending tolerance. Moreover, by choosing NiOx as the hole-injection layer, the CE is improved to 10.15 cd A(-1) and EQE is improved to a record of 3.26% for perovskite LEDs produced by vacuum deposition. The time efficient combinatorial approaches can also be applied to optimize other perovskite LEDs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据