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Solution‐Processed Perovskite Microdisk for Coherent Light Emission
Xiaojun Li1; Xuanjun Zhang2; Haifeng Li1; Tanghao Liu1; Dandan Zhao1; Chao Liang1; Guichuan Xing1; Zikang Tang1
2019-10
Source PublicationADVANCED OPTICAL MATERIALS
ISSN2195-1071
Volume7Issue:19
Abstract

High‐quality semiconductor microdisks (MDs) are of crucial importance for realizing on‐chip coherent light sources. However, the fabrication of all‐inorganic semiconductor circular or circular‐like microdisks (CMDs) with suitable size for optoelectronic applications is still complex and expensive. Herein, a facile ligand‐free antisolvent‐assisted growth method is used to synthesize high‐quality Cs4PbBr6 MDs with tunable size and morphology, which is evolved from rhombohedral to octahedral, hexagonal‐like, and circular‐like MDs based on Cl‐containing antisolvents. Significantly, this is the first time that large semiconductor CMDs are synthesized from solution self‐assembled growth at room temperature. These Cs4PbBr6 MDs show high‐efficient and stable green emission (522 nm), which should be attributed to the first‐order excitonic emission from embedded CsPbBr3 nanocrystals (NCs). The distribution of CsPbBr3 NCs is verified by lattice fringe, crystal data refinement, and time‐resolved photoluminescence analysis. These CsPbBr3‐in‐Cs4PbBr6 CMDs are demonstrated to hold outstanding two‐photon pumped coherent light emission ability with a remarkably low threshold (400 µJ cm−2). These findings suggest CsPbBr3‐in‐Cs4PbBr6 MDs have excellent light emission capability and stability toward practical optoelectronic applications, and their tunable morphology and size indicate that solution method is feasible for the fabrication of semiconductor CMDs.

KeywordCoherent Light Emission Cspbbr3-in-cs4pbbr6 Nanocomposites Metal-halide Perovskite Microdisks Tunable Morphology Tunable Size
DOI10.1002/adom.201900678
Indexed BySCIE
Language英语
WOS Research AreaMaterials Science ; Optics
WOS SubjectMaterials Science, Multidisciplinary ; Optics
WOS IDWOS:000473950600001
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Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Health Sciences
INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorGuichuan Xing; Zikang Tang
Affiliation1.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau SAR, 999078 China
2.Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau SAR, 999078 China
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Xiaojun Li,Xuanjun Zhang,Haifeng Li,et al. Solution‐Processed Perovskite Microdisk for Coherent Light Emission[J]. ADVANCED OPTICAL MATERIALS,2019,7(19).
APA Xiaojun Li.,Xuanjun Zhang.,Haifeng Li.,Tanghao Liu.,Dandan Zhao.,...&Zikang Tang.(2019).Solution‐Processed Perovskite Microdisk for Coherent Light Emission.ADVANCED OPTICAL MATERIALS,7(19).
MLA Xiaojun Li,et al."Solution‐Processed Perovskite Microdisk for Coherent Light Emission".ADVANCED OPTICAL MATERIALS 7.19(2019).
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