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Titolo:
OPTICAL-SPECTRA AND ANALYSIS OF ER3+ IN SILICON WITH C, O, AND N IMPURITIES
Autore:
WORTMAN DE; MORRISON CA; BRADSHAW JL;
Indirizzi:
USA,RES LAB,2800 POWDER MILL RD ADELPHI MD 20783
Titolo Testata:
Journal of applied physics
fascicolo: 5, volume: 82, anno: 1997,
pagine: 2580 - 2583
SICI:
0021-8979(1997)82:5<2580:OAAOEI>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
DOPED SILICON; LUMINESCENCE; SI;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
D.E. Wortman et al., "OPTICAL-SPECTRA AND ANALYSIS OF ER3+ IN SILICON WITH C, O, AND N IMPURITIES", Journal of applied physics, 82(5), 1997, pp. 2580-2583

Abstract

Photoluminescence (PL) spectra of Er3+ in an Er-doped silicon film were recorded at 2 and 77 K over the wavelength range from 1.52 to 1.68 mu m, which includes optical transitions between the Er3+ 4I13/2 and I-4(15/2) manifolds. These spectra were then analyzed to determine the nature of the electrostatic field at the site of the Er ion that governs the ion's optical behavior. The PL spectra were analyzed three different ways: by-considering the Er3+ ions to be occupying sites of T-d,C-3, or D-2d point group symmetry. Transition energies and magnetic dipole transition probabilities were calculated for each case by diagonalizing a Hamiltonian representing the free-ion and crystal-field interactions in a Russell-Saunders basis of states spanning the lowest 15 J multiplets of the (4)f(11) electronic configuration of Er3+. Crystal-field parameters were varied in each case to find the best agreement with the experiment. Our results showed that the site symmetry of the Er3+ ions most consistent with the data is D-2d. For this case, the rms deviation between the experimental and calculated energy levels is 3.3 cm(-1) with the calculated magnetic dipole transition probabilitiesin qualitative agreement with the experiment. (C) 1997 American Institute of Physics.

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Documento generato il 01/12/20 alle ore 07:56:55