UM
High-Efficiency Light-Emitting Diodes of Organometal Halide Perovskite Amorphous Nanoparticles
Xing J.1; Yan F.1; Zhao Y.2; Chen S.1; Yu H.1; Zhang Q.1; Zeng R.2; Demir H.V.1; Sun X.1; Huan A.1; Xiong Q.1
2016-07-26
Source PublicationACS Nano
ISSN1936086X 19360851
Volume10Issue:7Pages:6623-6630
AbstractOrganometal halide perovskite has recently emerged as a very promising family of materials with augmented performance in electronic and optoelectronic applications including photovoltaic devices, photodetectors, and light-emitting diodes. Herein, we propose and demonstrate facile solution synthesis of a series of colloidal organometal halide perovskite CH NH PbX (X = halides) nanoparticles with amorphous structure, which exhibit high quantum yield and tunable emission from ultraviolet to near-infrared. The growth mechanism and photoluminescence properties of the perovskite amorphous nanoparticles were studied in detail. A high-efficiency green-light-emitting diode based on amorphous CH NH PbBr nanoparticles was demonstrated. The perovskite amorphous nanoparticle-based light-emitting diode shows a maximum luminous efficiency of 11.49 cd/A, a power efficiency of 7.84 lm/W, and an external quantum efficiency of 3.8%, which is 3.5 times higher than that of the best colloidal perovskite quantum-dot-based light-emitting diodes previously reported. Our findings indicate the great potential of colloidal perovskite amorphous nanoparticles in light-emitting devices.
Keywordelectroluminescence light-emitting diodes nanoparticles organometal halide perovskite photoluminescence
DOI10.1021/acsnano.6b01540
URLView the original
Language英語
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Cited Times [WOS]:180   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Nanyang Technological University
2.China Academy of Engineering Physics
3.Bilkent Üniversitesi
Recommended Citation
GB/T 7714
Xing J.,Yan F.,Zhao Y.,et al. High-Efficiency Light-Emitting Diodes of Organometal Halide Perovskite Amorphous Nanoparticles[J]. ACS Nano,2016,10(7):6623-6630.
APA Xing J..,Yan F..,Zhao Y..,Chen S..,Yu H..,...&Xiong Q..(2016).High-Efficiency Light-Emitting Diodes of Organometal Halide Perovskite Amorphous Nanoparticles.ACS Nano,10(7),6623-6630.
MLA Xing J.,et al."High-Efficiency Light-Emitting Diodes of Organometal Halide Perovskite Amorphous Nanoparticles".ACS Nano 10.7(2016):6623-6630.
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