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dc.contributor.authorMi, Yang
dc.contributor.authorLiu, Zhixiong
dc.contributor.authorShang, Qiuyu
dc.contributor.authorNiu, Xinxiang
dc.contributor.authorShi, Jia
dc.contributor.authorZhang, Shuai
dc.contributor.authorChen, Jie
dc.contributor.authorDu, Wenna
dc.contributor.authorWu, Zhiyong
dc.contributor.authorWang, Rui
dc.contributor.authorQiu, Xiaohui
dc.contributor.authorHu, Xiaoyong
dc.contributor.authorZhang, Qing
dc.contributor.authorWu, Tao
dc.contributor.authorLiu, Xinfeng
dc.date.accessioned2018-02-01T07:24:59Z
dc.date.available2018-02-01T07:24:59Z
dc.date.issued2018-01-10
dc.identifier.citationMi Y, Liu Z, Shang Q, Niu X, Shi J, et al. (2018) Fabry-Pérot Oscillation and Room Temperature Lasing in Perovskite Cube-Corner Pyramid Cavities. Small: 1703136. Available: http://dx.doi.org/10.1002/smll.201703136.
dc.identifier.issn1613-6810
dc.identifier.pmid29320610
dc.identifier.doi10.1002/smll.201703136
dc.identifier.urihttp://hdl.handle.net/10754/626966
dc.description.abstractRecently, organometal halide perovskite-based optoelectronics, particularly lasers, have attracted intensive attentions because of its outstanding spectral coherence, low threshold, and wideband tunability. In this work, high-quality CH3 NH3 PbBr3 single crystals with a unique shape of cube-corner pyramids are synthesized on mica substrates using chemical vapor deposition method. These micropyramids naturally form cube-corner cavities, which are eminent candidates for small-sized resonators and retroreflectors. The as-grown perovskites show strong emission ≈530 nm in the vertical direction at room temperature. A special Fabry-Pérot (F-P) mode is employed to interpret the light confinement in the cavity. Lasing from the perovskite pyramids is observed from 80 to 200 K, with threshold ranging from ≈92 µJ cm-2 to 2.2 mJ cm-2 , yielding a characteristic temperature of T0 = 35 K. By coating a thin layer of Ag film, the threshold is reduced from ≈92 to 26 µJ cm-2 , which is accompanied by room temperature lasing with a threshold of ≈75 µJ cm-2 . This work advocates the prospect of shape-engineered perovskite crystals toward developing micro-sized optoelectronic devices and potentially investigating light-matter coupling in quantum optics.
dc.description.sponsorshipY.M. and Z.L. contributed equally to this work. X.F.L. thanks the support from the Ministry of Science and Technology (Nos. 2016YFA0200700 and 2017YFA0205004), National Natural Science Foundation of China (No. 21673054), Key Research Program of Frontier Science, CAS (No. QYZDB-SSW-SYS031). Q.Z. acknowledges funding support from the Ministry of Science and Technology (2017YFA0205700; 2017YFA0304600) and Natural Science Foundation of China (No. 61774003). Q.Z. also acknowledges the support of start-up funding from Peking University, one-thousand talent programs from Chinese government, open research fund program of the state key laboratory of low-dimensional quantum physics. Y.M. thanks the financial support from China Postdoctoral Science Foundation (No. 2017M620031). W.D. thanks the funding support from the Natural Science Foundation of China (No. 61704038).
dc.publisherWiley
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/smll.201703136/full
dc.subjectChemical vapor deposition
dc.subjectCube-corner pyramids
dc.subjectFabry-Pérot
dc.subjectLasing
dc.subjectPerovskite
dc.titleFabry-Pérot Oscillation and Room Temperature Lasing in Perovskite Cube-Corner Pyramid Cavities
dc.typeArticle
dc.contributor.departmentLaboratory of Nano Oxides for Sustainable Energy
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalSmall
dc.contributor.institutionDivision 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 P. R. China
dc.contributor.institutionDepartment of Materials Science and Engineering; College of Engineering; Peking University; Beijing 100871 P. R. China
dc.contributor.institutionState Key Laboratory for Mesoscopic Physics & Department of Physics; Collaborative Innovation Center of Quantum Matter; Peking University; Beijing 100190 P. R. China
kaust.personLiu, Zhixiong
kaust.personWu, Tao
dc.date.published-online2018-01-10
dc.date.published-print2018-03


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