Light emission from silicon with tin-containing nanocrystals

Søren Roesgaard Nielsen, Jacques Chevallier, Peter I. Gaiduk, John Lundsgaard Hansen, Pia Bomholt Jensen, Arne Nylandsted Larsen, Axel Svane, Peter Balling, Brian Julsgaard

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

8 Citationer (Scopus)

Abstract

Tin-containing nanocrystals, embedded in silicon, have been fabricated by growing an epitaxial layer of Si1-x-ySnxCy, where x = 1.6 % and y = 0.04 % on a silicon substrate, followed by annealing at various temperatures ranging from 650 degrees C to 900 degrees C. The nanocrystal density and average diameters are determined by scanning transmission-electron microscopy to approximate to 10(17) cm(-3) and approximate to 5 nm, respectively. Photoluminescence spectroscopy demonstrates that the light emission is very pronounced for samples annealed at 725 degrees C, and Rutherford back-scattering spectrometry shows that the nanocrystals are predominantly in the diamond-structured phase at this particular annealing temperature. The origin of the light emission is discussed. (C) 2015 Author(s).

OriginalsprogEngelsk
Artikelnummer077114
TidsskriftR S C Advances
Vol/bind5
Nummer7
Antal sider6
ISSN2046-2069
DOI
StatusUdgivet - jul. 2015

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