High-Quality Whispering-Gallery-Mode Lasing from Cesium Lead Halide Perovskite Nanoplatelets
Semiconductor micro/nano-cavities with high quality factor (Q) and small modal volume provide critical platforms for exploring strong light-matter interactions and quantum optics, enabling further development of coherent and quantum photonic devices. Constrained by exciton binding energy and thermal...
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sg-ntu-dr.10356-840802021-01-08T07:54:58Z High-Quality Whispering-Gallery-Mode Lasing from Cesium Lead Halide Perovskite Nanoplatelets Zhang, Qing Su, Rui Liu, Xinfeng Xing, Jun Sum, Tze Chien Xiong, Qihua School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences NOVITAS Nanoelectronics Centre of Excellence Energy Research Institute @ NTU (ERI@N) Cesium Lead Halide Perovskite Semiconductor micro/nano-cavities with high quality factor (Q) and small modal volume provide critical platforms for exploring strong light-matter interactions and quantum optics, enabling further development of coherent and quantum photonic devices. Constrained by exciton binding energy and thermal fluctuation, only a handful of wide-band semiconductors such as ZnO and GaN have stable excitons at room temperature. Metal halide perovskite with cubic lattice and well-controlled exciton may provide solutions. In this work, high-quality single-crystalline cesium lead halide CsPbX3 (X = Cl, Br, I) whispering-gallery-mode (WGM) microcavities are synthesized by vapor-phase van der Waals epitaxy method. The as-grown perovskites show strong emission and stable exciton at room temperature over the whole visible spectra range. By varying the halide composition, multi-color (400–700 nm).WGM excitonic lasing is achieved at room temperature with low threshold (~ 2.0 μJ cm−2) and high spectra coherence (~0.14–0.15 nm). The results advocate the promise of inorganic perovskites towards development of optoelectronic devices and strong light-matter coupling in quantum optics. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2017-08-07T03:32:15Z 2019-12-06T15:37:52Z 2017-08-07T03:32:15Z 2019-12-06T15:37:52Z 2016 Journal Article Zhang, Q., Su, R., Liu, X., Xing, J., Sum, T. C., & Xiong, Q. (2016). High-Quality Whispering-Gallery-Mode Lasing from Cesium Lead Halide Perovskite Nanoplatelets. Advanced Functional Materials, 26(34), 6238-6245. 1616-301X https://hdl.handle.net/10356/84080 http://hdl.handle.net/10220/43556 10.1002/adfm.201601690 en Advanced Functional Materials © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the author created version of a work that has been peer reviewed and accepted for publication by Advanced Functional Materials, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1002/adfm.201601690]. 21 p. application/pdf |
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Cesium Lead Halide Perovskite Zhang, Qing Su, Rui Liu, Xinfeng Xing, Jun Sum, Tze Chien Xiong, Qihua High-Quality Whispering-Gallery-Mode Lasing from Cesium Lead Halide Perovskite Nanoplatelets |
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Semiconductor micro/nano-cavities with high quality factor (Q) and small modal volume provide critical platforms for exploring strong light-matter interactions and quantum optics, enabling further development of coherent and quantum photonic devices. Constrained by exciton binding energy and thermal fluctuation, only a handful of wide-band semiconductors such as ZnO and GaN have stable excitons at room temperature. Metal halide perovskite with cubic lattice and well-controlled exciton may provide solutions. In this work, high-quality single-crystalline cesium lead halide CsPbX3 (X = Cl, Br, I) whispering-gallery-mode (WGM) microcavities are synthesized by vapor-phase van der Waals epitaxy method. The as-grown perovskites show strong emission and stable exciton at room temperature over the whole visible spectra range. By varying the halide composition, multi-color (400–700 nm).WGM excitonic lasing is achieved at room temperature with low threshold (~ 2.0 μJ cm−2) and high spectra coherence (~0.14–0.15 nm). The results advocate the promise of inorganic perovskites towards development of optoelectronic devices and strong light-matter coupling in quantum optics. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Zhang, Qing Su, Rui Liu, Xinfeng Xing, Jun Sum, Tze Chien Xiong, Qihua |
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Article |
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Zhang, Qing Su, Rui Liu, Xinfeng Xing, Jun Sum, Tze Chien Xiong, Qihua |
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Zhang, Qing |
title |
High-Quality Whispering-Gallery-Mode Lasing from Cesium Lead Halide Perovskite Nanoplatelets |
title_short |
High-Quality Whispering-Gallery-Mode Lasing from Cesium Lead Halide Perovskite Nanoplatelets |
title_full |
High-Quality Whispering-Gallery-Mode Lasing from Cesium Lead Halide Perovskite Nanoplatelets |
title_fullStr |
High-Quality Whispering-Gallery-Mode Lasing from Cesium Lead Halide Perovskite Nanoplatelets |
title_full_unstemmed |
High-Quality Whispering-Gallery-Mode Lasing from Cesium Lead Halide Perovskite Nanoplatelets |
title_sort |
high-quality whispering-gallery-mode lasing from cesium lead halide perovskite nanoplatelets |
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2017 |
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https://hdl.handle.net/10356/84080 http://hdl.handle.net/10220/43556 |
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1688665583531327488 |