High intensity photodegradation of lead halide perovskite nanocrystals
High intensity photodegradation of lead halide perovskite nanocrystals
In this work, we probe the photodegradative behaviour of CsPbBr3 perovskite nanocrystals under illumination intensities in excess of 1 W=cm2. In doing so, we uncover optical behaviours unique to this extreme form of degradation namely a pronounced period of increasing photoluminescent intensity at the outset of degradation along with a red-shifted emission lobe. We also compare the photochemical lifetimes of CsPbBr3 to the relating organic-inorganic hybrid of FAPbBr3 and show that FAPbBr3 can withstand such high intensities for approximately ten times longer than CsPbBr3. This marks out FAPbBr3 as a potential successor to CsPbBr3 in optoelectronic applications.
Colour conversion, Degradation, High intensity, LEDs, Nanocrystals, Perovskite, Photoactivation, Stability
Shaw, Peter J.
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Mercier, Thomas M.
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Bailey, Christopher G.
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Kanaras, Antonios G.
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Lagoudakis, Pavlos G.
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Charlton, Martin D.B.
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1 January 2020
Shaw, Peter J.
dcb6c9af-bf38-4dfe-8395-8aeac2ad5cc7
Mercier, Thomas M.
48bf8bb9-2952-41f6-8153-354763a06edd
Bailey, Christopher G.
c537fe2c-47b1-45cc-b449-92a7febdbd8d
Kanaras, Antonios G.
667ecfdc-7647-4bd8-be03-a47bf32504c7
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf
Charlton, Martin D.B.
fcf86ab0-8f34-411a-b576-4f684e51e274
Shaw, Peter J., Mercier, Thomas M., Bailey, Christopher G., Kanaras, Antonios G., Lagoudakis, Pavlos G. and Charlton, Martin D.B.
(2020)
High intensity photodegradation of lead halide perovskite nanocrystals.
Kim, Jong Kyu, Krames, Michael R. and Strassburg, Martin
(eds.)
In Light-Emitting Devices, Materials, and Applications XXIV.
vol. 11302,
SPIE..
(doi:10.1117/12.2544170).
Record type:
Conference or Workshop Item
(Paper)
Abstract
In this work, we probe the photodegradative behaviour of CsPbBr3 perovskite nanocrystals under illumination intensities in excess of 1 W=cm2. In doing so, we uncover optical behaviours unique to this extreme form of degradation namely a pronounced period of increasing photoluminescent intensity at the outset of degradation along with a red-shifted emission lobe. We also compare the photochemical lifetimes of CsPbBr3 to the relating organic-inorganic hybrid of FAPbBr3 and show that FAPbBr3 can withstand such high intensities for approximately ten times longer than CsPbBr3. This marks out FAPbBr3 as a potential successor to CsPbBr3 in optoelectronic applications.
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More information
Published date: 1 January 2020
Venue - Dates:
Light-Emitting Devices, Materials, and Applications XXIV 2020, , San Francisco, United States, 2020-02-03 - 2020-02-06
Keywords:
Colour conversion, Degradation, High intensity, LEDs, Nanocrystals, Perovskite, Photoactivation, Stability
Identifiers
Local EPrints ID: 444407
URI: http://eprints.soton.ac.uk/id/eprint/444407
PURE UUID: d3b13674-6cd8-47ea-9560-c5f14a85a9d2
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Date deposited: 16 Oct 2020 16:32
Last modified: 17 Mar 2024 03:12
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Contributors
Author:
Peter J. Shaw
Author:
Thomas M. Mercier
Author:
Christopher G. Bailey
Author:
Pavlos G. Lagoudakis
Author:
Martin D.B. Charlton
Editor:
Jong Kyu Kim
Editor:
Michael R. Krames
Editor:
Martin Strassburg
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