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The lifetime of electrons, holes and excitons before self-trapping

MOTT, NF; STONEHAM, AM; (1977) The lifetime of electrons, holes and excitons before self-trapping. Journal of Physics C: Solid State Physics , 10 (17) 3391 - 3398. 10.1088/0022-3719/10/17/022. Green open access

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Abstract

In this paper we discuss the self-trapping of a carrier or exciton in an insulator. The qualitative differences between small self-trapped molecular polarons and dielectric polarons are stressed. We point out that, for the formation of a molecular polaron or selftrapped exciton, a potential barrier must be penetrated or surmounted by the configuration coordinate, leading to a delay in the self-trapping process. This does not exist for dielectric polarons. The observable consequence of the delay time before self-trapping is discussed, and applications are made to alkali halides and to SOz.

Type: Article
Title: The lifetime of electrons, holes and excitons before self-trapping
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/0022-3719/10/17/022
Publisher version: http://dx.doi.org/10.1088/0022-3719/10/17/022
Language: English
Additional information: Text made available to UCL Discovery by kind permission of IOP Publishing, 2012
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/59750
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