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Polymer-enhanced stability of inorganic perovskite nanocrystals and their application in color conversion LEDs

Polymer-enhanced stability of inorganic perovskite nanocrystals and their application in color conversion LEDs
Polymer-enhanced stability of inorganic perovskite nanocrystals and their application in color conversion LEDs
Cesium lead halide (CsPbX3, X = Cl, Br, I) nanocrystals (NCs) offer exceptional optical properties for several potential applications but their implementation is hindered by a low chemical and structural stability and limited processability. In the present work, we developed a new method to efficiently coat CsPbX3 NCs, which resulted in their increased chemical and optical stability as well as processability. The method is based on the incorporation of poly(maleic anhydride-alt-1-octadecene) (PMA) into the synthesis of the perovskite NCs. The presence of PMA in the ligand shell stabilizes the NCs by tightening the ligand binding, limiting in this way the NC surface interaction with the surrounding media. We further show that these NCs can be embedded in self-standing silicone/glass plates as down-conversion filters for the fabrication of monochromatic green and white light emitting diodes (LEDs) with narrow bandwidths and appealing color characteristics
1944-8244
1-18
Meyns, Michaela
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Perálvarez, Mariano
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Heuer-Jungemann, Amelie
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Hertog, Wim
6cec97ef-294f-4d01-89cb-930ef2489322
Ibáñez, Maria
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Nafria, Raquel
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Genç, Aziz
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Arbiol, Jordi
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Kovalenko, Maksym V.
fac642ae-841e-4ed2-8280-dcd8be762ff1
Carreras, Josep
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Cabot, Andreu
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Kanaras, Antonios
667ecfdc-7647-4bd8-be03-a47bf32504c7
Meyns, Michaela
2da3c6a9-3fef-4399-b19d-194c277b1b02
Perálvarez, Mariano
32331602-fa44-4a15-91c9-ac324f7b8c8f
Heuer-Jungemann, Amelie
19d5a272-0f65-4679-b62b-263fa1806230
Hertog, Wim
6cec97ef-294f-4d01-89cb-930ef2489322
Ibáñez, Maria
26088251-3ee0-4ff2-aec9-8b033e2122db
Nafria, Raquel
a067ea33-ffc0-45d9-89b9-a68c9c583234
Genç, Aziz
b9552e08-9e95-45b3-96ea-e89aa301d021
Arbiol, Jordi
e85ee415-5b52-4cbd-921c-0821f97cbda5
Kovalenko, Maksym V.
fac642ae-841e-4ed2-8280-dcd8be762ff1
Carreras, Josep
bad70aeb-8166-47fa-9a2f-f5b6a1b75a9e
Cabot, Andreu
5bfa06f5-aafe-49e4-8098-a34bb4f96981
Kanaras, Antonios
667ecfdc-7647-4bd8-be03-a47bf32504c7

Meyns, Michaela, Perálvarez, Mariano, Heuer-Jungemann, Amelie, Hertog, Wim, Ibáñez, Maria, Nafria, Raquel, Genç, Aziz, Arbiol, Jordi, Kovalenko, Maksym V., Carreras, Josep, Cabot, Andreu and Kanaras, Antonios (2016) Polymer-enhanced stability of inorganic perovskite nanocrystals and their application in color conversion LEDs. ACS Applied Materials & Interfaces, 1-18. (doi:10.1021/acsami.6b02529).

Record type: Article

Abstract

Cesium lead halide (CsPbX3, X = Cl, Br, I) nanocrystals (NCs) offer exceptional optical properties for several potential applications but their implementation is hindered by a low chemical and structural stability and limited processability. In the present work, we developed a new method to efficiently coat CsPbX3 NCs, which resulted in their increased chemical and optical stability as well as processability. The method is based on the incorporation of poly(maleic anhydride-alt-1-octadecene) (PMA) into the synthesis of the perovskite NCs. The presence of PMA in the ligand shell stabilizes the NCs by tightening the ligand binding, limiting in this way the NC surface interaction with the surrounding media. We further show that these NCs can be embedded in self-standing silicone/glass plates as down-conversion filters for the fabrication of monochromatic green and white light emitting diodes (LEDs) with narrow bandwidths and appealing color characteristics

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Accepted/In Press date: 14 July 2016
e-pub ahead of print date: 25 July 2016
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 398581
URI: https://eprints.soton.ac.uk/id/eprint/398581
ISSN: 1944-8244
PURE UUID: 332373c2-0ab7-4cbf-8634-32e6e62fb155
ORCID for Antonios Kanaras: ORCID iD orcid.org/0000-0002-9847-6706

Catalogue record

Date deposited: 28 Jul 2016 11:07
Last modified: 03 Dec 2019 06:37

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