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Non-radiative de-excitation of deep centres

Stoneham, AM; Bartram, RH; (1978) Non-radiative de-excitation of deep centres. Solid-State Electronics , 21 (11-12) 1325 - 1329. 10.1016/0038-1101(78)90201-0. Green open access

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Abstract

We develop a quantitative theory of the ratio R of radiative to non-radiative de-excitation based on the Dexter-Klick-Russell criterion for the occurrence of luminescence. The model invokes three essential elements: a promoting mode, an accepting mode, and a set of lattice modes which ultimately absorb the vibrational energy. The ratio R is determined by the relative population of the relaxed excited and ground states. We show that Rnx(a)/ng(a), where nx(a) and ng(a) are the numbers of vibrational quanta in the accepting mode associated with the excited state and the ground state, respectively, at the crossing of their adiabatic potential energy curves. The result is consistent with experiment.

Type: Article
Title: Non-radiative de-excitation of deep centres
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/0038-1101(78)90201-0
Publisher version: http://dx.doi.org/10.1016/0038-1101(78)90201-0
Language: English
Additional information: Text made available to UCL Discovery by kind permission of Elsevier B.V., 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/59763
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