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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.; Shan, C. X.; Du, G. T.
2018
Source PublicationAcs Nano
ISSN1936-0851
Volume12Issue:2Pages:1462-1472
AbstractRecently, 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.
Keywordperovskite 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
DOI10.1021/acsnano.7b07856
Indexed BySCI ; EI
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Cited Times:83[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/61157
Collection中国科学院长春光学精密机械与物理研究所
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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.
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