The University of Southampton
University of Southampton Institutional Repository

High intensity photodegradation of lead halide perovskite nanocrystals

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
SPIE
Shaw, Peter J.
dcb6c9af-bf38-4dfe-8395-8aeac2ad5cc7
Mercier, Thomas M.
48bf8bb9-2952-41f6-8153-354763a06edd
Bailey, Christopher G.
5dc8d026-09d8-4dd5-aef2-c4edf83deb8f
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
Kim, Jong Kyu
Krames, Michael R.
Strassburg, Martin
Shaw, Peter J.
dcb6c9af-bf38-4dfe-8395-8aeac2ad5cc7
Mercier, Thomas M.
48bf8bb9-2952-41f6-8153-354763a06edd
Bailey, Christopher G.
5dc8d026-09d8-4dd5-aef2-c4edf83deb8f
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
Kim, Jong Kyu
Krames, Michael R.
Strassburg, Martin

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.

Full text not available from this repository.

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
ORCID for Peter J. Shaw: ORCID iD orcid.org/0000-0001-9044-1069
ORCID for Christopher G. Bailey: ORCID iD orcid.org/0000-0001-6593-1381
ORCID for Antonios G. Kanaras: ORCID iD orcid.org/0000-0002-9847-6706

Catalogue record

Date deposited: 16 Oct 2020 16:32
Last modified: 16 Oct 2020 16:32

Export record

Altmetrics

Contributors

Author: Peter J. Shaw ORCID iD
Author: Thomas M. Mercier
Author: Christopher G. Bailey ORCID iD
Author: Martin D.B. Charlton
Editor: Jong Kyu Kim
Editor: Michael R. Krames
Editor: Martin Strassburg

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×