Eur. Phys. J. Appl. Phys.
Volume 33, Number 3, March 2006
|Page(s)||161 - 167|
|Section||Semiconductors and Related Materials|
|Published online||04 April 2006|
Oscillatory structure in radiation spectra of individual microplasmas in silicon carbide p-n-junctions
National Technical University of Ukraine “Kyiv Polytechnical Institute”, Kyiv, Ukraine
2 I.N.Frantzevich Institute for Problems of Materials Science of National Academy of Sciences of Ukraine, 3 Krzhyzhanovskogo str., 03180 Kyiv, Ukraine
Corresponding author: firstname.lastname@example.org
Revised: 17 December 2005
Accepted: 17 December 2005
Published online: 4 April 2006
The breakdown electroluminescence spectra of individual microplasmas in a p-n-junction with microplasma breakdown, which was prepared on a 3C-SiC crystal, have been investigated. The clear periodic structure of an oscillatory nature, which was discovered first by the authors recently, with a period of about 0.16 eV was observed in the emission spectra of this microplasma. The oscillations were superimposed over the entire investigated spectral region between 1.8–4.7 eV. The amplitude of the oscillations amounted to 0.05–0.25 of the background radiation intensity. The characteristics of the oscillatory structure and of the background radiation have been separated and compared. It turned out that they depend in different ways on the temperature and on the sample-powering regime. It has been revealed that the oscillatory structure is associated apparently with the energy transition (X3c−X1c) in the conduction band.
PACS: 71.20.-b – Electron density of states and band structure of crystalline solids / 78.20.Jq – Electrooptical effects / 78.60.Fi – Electroluminescence
© EDP Sciences, 2006
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