Strategy of Solution-Processed All-Inorganic Heterostructure for HumidityTemperature-Stable Perovskite Quantum Dot Light-Emitting Diodes

doi:10.1021/acsnano.7b07856

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	Strategy of Solution-Processed All-Inorganic Heterostructure for HumidityTemperature-Stable Perovskite Quantum Dot Light-Emitting Diodes
	Shi, Z. F.; Li, S.; Li, Y.; Ji, H. F.; Li, X. J.; Wu, D.; Xu, T. T.; Chen, Y. S.; Tian, Y. T.; Zhang, Y. T.
刊名	Acs Nano
	2018
卷号	12 期号:2 页码:1462-1472
关键词	perovskite light-emitting diodes CsPbBr3 humidity tolerance temperature tolerance high-efficiency zno nanoparticles temperature-dependence halide perovskites optical-properties room-temperature photoluminescence nanocrystals luminescence ch3nh3pbbr3 Chemistry Science & Technology - Other Topics Materials Science
ISSN号	1936-0851
DOI	10.1021/acsnano.7b07856
英文摘要	Recently, a pressing requirement of solid-state lighting sources with high performance and low cost has motivated increasing research in metal halide perovskites. However, the relatively low emission efficiency and poor operation stability of perovskite light-emitting diodes (LEDs) are still critical drawbacks. In this study, a strategy of solution-processed all-inorganic heterostructure was proposed to overcome the emission efficiency and operation stability issues facing the challenges of perovskite LEDs. Solution-processed n-ZnO nanoparticles and p-NiO are used as the carrier injectors to fabricate all-inorganic heterostructured CsPbBr3 quantum dot LEDs, and a high efficiency green emission is achieved with maximum luminance of 6093.2 cd/m(2), external quantum efficiency of 3.79%, and current efficiency of 7.96 cd/A. More importantly, the studied perovskite LEDs possess a good operation stability after a long test time in air ambient. Typically, the devices can endure a high humidity (75%, 12 h) and a high working temperature (393 K, three heating/cooling cycles) even without encapsulation, and the operation stability is better than any previous reports. It is anticipated that this work will provide an effective strategy for the fabrication of high-performance perovskite LEDs with good stability under ambient and harsh conditions, making practical applications of such LEDs a real possibility.
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/61157]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Shi, Z. F.,Li, S.,Li, Y.,et al. Strategy of Solution-Processed All-Inorganic Heterostructure for HumidityTemperature-Stable Perovskite Quantum Dot Light-Emitting Diodes[J]. Acs Nano,2018,12(2):1462-1472.
APA	Shi, Z. F..,Li, S..,Li, Y..,Ji, H. F..,Li, X. J..,...&Du, G. T..(2018).Strategy of Solution-Processed All-Inorganic Heterostructure for HumidityTemperature-Stable Perovskite Quantum Dot Light-Emitting Diodes.Acs Nano,12(2),1462-1472.
MLA	Shi, Z. F.,et al."Strategy of Solution-Processed All-Inorganic Heterostructure for HumidityTemperature-Stable Perovskite Quantum Dot Light-Emitting Diodes".Acs Nano 12.2(2018):1462-1472.