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A few-minute synthesis of CsPbBr3 nanolasers with a high quality factor by spraying at ambient conditions

A few-minute synthesis of CsPbBr3 nanolasers with a high quality factor by spraying at ambient conditions
A few-minute synthesis of CsPbBr3 nanolasers with a high quality factor by spraying at ambient conditions

Inorganic cesium lead halide perovskite nanowires, generating laser emission in the broad spectral range at room temperature and low threshold, have become powerful tools for the cutting-edge applications in the optoelectronics and nanophotonics. However, to achieve high-quality nanowires with the outstanding optical properties, it was necessary to employ long-lasting and costly methods of their synthesis, as well as postsynthetic separation and transfer procedures that are not convenient for large-scale production. Here we report a novel approach to fabricate high-quality CsPbBr3 nanolasers obtained by rapid precipitation from dimethyl sulfoxide solution sprayed onto hydrophobic substrates at ambient conditions. The synthesis technique allows producing the well-separated nanowires with a broad size distribution of 2-50 μm in 5-7 min, being the fastest method to the best of our knowledge. The formation of nanowires occurs via ligand-assisted reprecipitation triggered by intermolecular proton transfer from (CH3)2CHOH to H2O in the presence of a minor amount of water. The XRD patterns confirm an orthorhombic crystal structure of the as-grown CsPbBr3 single nanowires. Scanning electron microscopy images reveal their regular shape and truncated pyramidal end facets, while high-resolution transmission electron microscopy ones demonstrate their single-crystal structure. The lifetime of excitonic emission of the nanowires is found to be 7 ns, when the samples are excited with energy below the lasing threshold, manifesting the low concentration of defect states. The measured nanolasers of different lengths exhibit pronounced stimulated emission above 13 μJ cm-2 excitation threshold with quality factor Q = 1017-6166. Their high performance is assumed to be related to their monocrystalline structure, low concentration of defect states, and improved end facet reflectivity.

CsPbBr, high Q-factor lasing, lead halide perovskite, nanolaser, nanowire, spraying, synthesis
1944-8244
1040–1048
Pushkarev, Anatoly P.
17a2a8be-80dc-4b47-9d7d-1bcfbec308ff
Korolev, Viacheslav I.
1cf5daa2-f2d9-4a02-8ac1-e33b9e2bf2fc
Markina, Daria I.
5e12e01a-344c-4444-b754-f281768bab19
Komissarenko, Filipp E.
a0ebc840-ba53-497c-995f-5810c66b76f1
Naujokaitis, Arnas
89972557-9905-4d32-a431-dec2a18f22c7
Drabavičius, Audrius
207f4b47-77a7-4726-9739-97fa9cc2cf55
Pakštas, Vidas
99c262bc-690c-4972-bb3b-38ccd58618df
Franckevičius, Marius
d007acb8-fc89-4e71-98a6-5ff6fda76131
Khubezhov, Soslan A.
7a5133e3-fa4f-4612-85f1-db7c578a4281
Sannikov, Denis A.
8712f2bf-5b5b-4017-8eee-a8a20001c1a9
Zasedatelev, Anton V.
b8f8265a-58a1-48c8-abf5-68e4e6ef8f70
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf
Zakhidov, Anvar A.
d8ed251a-3c26-4c3d-9145-c346b20c78fe
Makarov, Sergey V.
e9905a50-06c7-4154-9db3-103100b0189a
Pushkarev, Anatoly P.
17a2a8be-80dc-4b47-9d7d-1bcfbec308ff
Korolev, Viacheslav I.
1cf5daa2-f2d9-4a02-8ac1-e33b9e2bf2fc
Markina, Daria I.
5e12e01a-344c-4444-b754-f281768bab19
Komissarenko, Filipp E.
a0ebc840-ba53-497c-995f-5810c66b76f1
Naujokaitis, Arnas
89972557-9905-4d32-a431-dec2a18f22c7
Drabavičius, Audrius
207f4b47-77a7-4726-9739-97fa9cc2cf55
Pakštas, Vidas
99c262bc-690c-4972-bb3b-38ccd58618df
Franckevičius, Marius
d007acb8-fc89-4e71-98a6-5ff6fda76131
Khubezhov, Soslan A.
7a5133e3-fa4f-4612-85f1-db7c578a4281
Sannikov, Denis A.
8712f2bf-5b5b-4017-8eee-a8a20001c1a9
Zasedatelev, Anton V.
b8f8265a-58a1-48c8-abf5-68e4e6ef8f70
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf
Zakhidov, Anvar A.
d8ed251a-3c26-4c3d-9145-c346b20c78fe
Makarov, Sergey V.
e9905a50-06c7-4154-9db3-103100b0189a

Pushkarev, Anatoly P., Korolev, Viacheslav I., Markina, Daria I., Komissarenko, Filipp E., Naujokaitis, Arnas, Drabavičius, Audrius, Pakštas, Vidas, Franckevičius, Marius, Khubezhov, Soslan A., Sannikov, Denis A., Zasedatelev, Anton V., Lagoudakis, Pavlos G., Zakhidov, Anvar A. and Makarov, Sergey V. (2019) A few-minute synthesis of CsPbBr3 nanolasers with a high quality factor by spraying at ambient conditions. ACS Applied Materials & Interfaces, 11 (1), 1040–1048. (doi:10.1021/acsami.8b17396).

Record type: Article

Abstract

Inorganic cesium lead halide perovskite nanowires, generating laser emission in the broad spectral range at room temperature and low threshold, have become powerful tools for the cutting-edge applications in the optoelectronics and nanophotonics. However, to achieve high-quality nanowires with the outstanding optical properties, it was necessary to employ long-lasting and costly methods of their synthesis, as well as postsynthetic separation and transfer procedures that are not convenient for large-scale production. Here we report a novel approach to fabricate high-quality CsPbBr3 nanolasers obtained by rapid precipitation from dimethyl sulfoxide solution sprayed onto hydrophobic substrates at ambient conditions. The synthesis technique allows producing the well-separated nanowires with a broad size distribution of 2-50 μm in 5-7 min, being the fastest method to the best of our knowledge. The formation of nanowires occurs via ligand-assisted reprecipitation triggered by intermolecular proton transfer from (CH3)2CHOH to H2O in the presence of a minor amount of water. The XRD patterns confirm an orthorhombic crystal structure of the as-grown CsPbBr3 single nanowires. Scanning electron microscopy images reveal their regular shape and truncated pyramidal end facets, while high-resolution transmission electron microscopy ones demonstrate their single-crystal structure. The lifetime of excitonic emission of the nanowires is found to be 7 ns, when the samples are excited with energy below the lasing threshold, manifesting the low concentration of defect states. The measured nanolasers of different lengths exhibit pronounced stimulated emission above 13 μJ cm-2 excitation threshold with quality factor Q = 1017-6166. Their high performance is assumed to be related to their monocrystalline structure, low concentration of defect states, and improved end facet reflectivity.

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More information

Accepted/In Press date: 12 December 2018
e-pub ahead of print date: 12 December 2018
Published date: 9 January 2019
Keywords: CsPbBr, high Q-factor lasing, lead halide perovskite, nanolaser, nanowire, spraying, synthesis

Identifiers

Local EPrints ID: 428962
URI: http://eprints.soton.ac.uk/id/eprint/428962
ISSN: 1944-8244
PURE UUID: 81fd0a72-fd64-45a6-954c-d1e850fb00cb
ORCID for Anton V. Zasedatelev: ORCID iD orcid.org/0000-0003-0414-5779

Catalogue record

Date deposited: 15 Mar 2019 17:30
Last modified: 04 Mar 2020 01:44

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Contributors

Author: Anatoly P. Pushkarev
Author: Viacheslav I. Korolev
Author: Daria I. Markina
Author: Filipp E. Komissarenko
Author: Arnas Naujokaitis
Author: Audrius Drabavičius
Author: Vidas Pakštas
Author: Marius Franckevičius
Author: Soslan A. Khubezhov
Author: Denis A. Sannikov
Author: Anvar A. Zakhidov
Author: Sergey V. Makarov

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