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Modeling the contribution of quantum confinement to luminescence from silicon nanoclusters

Trwoga, PF; Kenyon, AJ; Pitt, CW; (1998) Modeling the contribution of quantum confinement to luminescence from silicon nanoclusters. Journal of Applied Physics , 83 (7) 3789 - 3794. 10.1063/1.366608. Green open access

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Abstract

We present a model for the luminescence spectrum of silicon nanoclusters. We propose that the major contribution to luminescence is from radiative recombination of confined excitons (quantum confinement). Utilizing the effective mass approximation we consider the variation in oscillator strength with cluster size and the associated change in the number of available free carriers. By varying both the mean cluster size and size distribution of silicon nanoclusters, the luminescence spectra are modeled to a good fit. We compare our model with experimental photoluminescence and electroluminescence data from this group and from others.

Type: Article
Title: Modeling the contribution of quantum confinement to luminescence from silicon nanoclusters
Open access status: An open access version is available from UCL Discovery
DOI: 10.1063/1.366608
Publisher version: http://dx.doi.org/10.1063/1.366608
Language: English
Additional information: Copyright 1998 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Trwoga, PF and Kenyon, AJ and Pitt, CW (1998) Modeling the contribution of quantum confinement to luminescence from silicon nanoclusters. Journal of Applied Physics , 83 (7) 3789 – 3794 and may be found at http://link.aip.org/link/?jap/83/03789
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 Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/149921
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