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Low Threshold Fabry–Pérot Mode Lasing from Lead Iodide Trapezoidal Nanoplatelets
Yangguang Zhong1,2; Qi Wei1,2; Zhen Liu2; Qiuyu Shang2,3; Liyun Zhao2; Ruiwen Shao4; Zhepeng Zhang2,5; Jie Chen2,6; Wenna Du6; Chao Shen7,8; Jun Zhang7,8; Yanfeng Zhang2,5; Peng Gao9,10; Guichuan Xing11; Xinfeng Liu6; Qing Zhang2,3
2018-08-29
Source PublicationSmall
ISSN1613-6810
Volume14Issue:35
Other Abstract

Lead Iodide (PbI2) is a layered semiconductor with direct band gap holding great promises in green light emission and detection devices. Recently, PbI2 planar lasers are demonstrated using hexagonal whispering‐gallery‐mode microcavities, but the lasing threshold is quite high. In this work, lasing from vapor phase deposition derived PbI2trapezoidal nanoplatelets (NPs) with threshold that is at least an order of magnitude lower than the previous value is reported. The growth mechanism of the trapezoidal NPs is explored and attributed to the synergistic effects of van der Waals interactions and lattice mismatching. The lasing is enabled by the population inversion of n = 1 excitons and the optical feedback is provided by the Fabry–Pérot oscillation between the side facets of trapezoidal NPs. The findings not only advance the understanding of growth and photophysics mechanism of PbI2 nanostructures but also provide ideas to develop low threshold ultrathin lasers.

KeywordLayered Semiconductor Microcavity Pbi2 Small Laser Van Der Waals Epitaxy
DOIhttps://doi.org/10.1002/smll.201801938
URLView the original
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000443012700014
PublisherWILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY
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Cited Times [WOS]:8   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorGuichuan Xing; Xinfeng Liu; Qing Zhang
Affiliation1.Key Laboratory of Flexible Electronics and Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816 China
2.Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871 China
3.Research Center for Wide Gap Semiconductor, Peking University, Beijing, 100871 China
4.Electron Microscopy Laboratory, School of Physics, Peking University, Beijing, 100871 China
5.Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Academy for Advanced Interdisciplinary Studies, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molec
6.Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 China
7.State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083 China
8.College of Materials Science and Opto‐Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049 China
9.International Center for Quantum Materials, School of Physics, Peking University, Beijing, 100871 China
10.Collaborative Innovation Center of Quantum Matter, Beijing, 100871 China
11.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macao, SAR, 999078 China
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Yangguang Zhong,Qi Wei,Zhen Liu,et al. Low Threshold Fabry–Pérot Mode Lasing from Lead Iodide Trapezoidal Nanoplatelets[J]. Small,2018,14(35).
APA Yangguang Zhong.,Qi Wei.,Zhen Liu.,Qiuyu Shang.,Liyun Zhao.,...&Qing Zhang.(2018).Low Threshold Fabry–Pérot Mode Lasing from Lead Iodide Trapezoidal Nanoplatelets.Small,14(35).
MLA Yangguang Zhong,et al."Low Threshold Fabry–Pérot Mode Lasing from Lead Iodide Trapezoidal Nanoplatelets".Small 14.35(2018).
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