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Titolo:
Step bunching in InGaAs/GaAs quantum wells grown by molecular beam epitaxyon GaAs(001) vicinal surfaces
Autore:
Martini, S; Quivy, AA; Ugarte, D; Lange, C; Richter, W; Tokranov, VE;
Indirizzi:
Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil Univ Sao Paulo Sao Paulo Brazil BR-05315970 BC05315970 Sao Paulo, Brazil Lab Nac Luz Sincrotron, BR-13083970 Campinas, SP, Brazil Lab Nac Luz Sincrotron Campinas SP Brazil BR-13083970 BCpinas, SP, Brazil Univ Jena, Inst Festkorperphys, D-07743 Jena, Germany Univ Jena Jena Germany D-07743 nst Festkorperphys, D-07743 Jena, Germany RAS, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia RAS St Petersburg Russia 194021 Tech Inst, St Petersburg 194021, Russia
Titolo Testata:
JOURNAL OF CRYSTAL GROWTH
, volume: 227, anno: 2001,
pagine: 46 - 50
SICI:
0022-0248(200107)227:<46:SBIIQW>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
GAAS;
Keywords:
photoluminescence; transmission electron microscopy; vicinal surfaces;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Quivy, AA Univ Sao Paulo, Inst Fis, CP 66318, BR-05315970 Sao Paulo, Brazil Univ Sao Paulo CP 66318 Sao Paulo Brazil BR-05315970 BC, Brazil
Citazione:
S. Martini et al., "Step bunching in InGaAs/GaAs quantum wells grown by molecular beam epitaxyon GaAs(001) vicinal surfaces", J CRYST GR, 227, 2001, pp. 46-50

Abstract

In the present work, we investigated the influence of step bunching on theoptical properties of InGaAs/GaAs quantum wells (QWs) grown by molecular beam epitaxy (MBE) on vicinal surfaces. Photoluminescence (PL) measurements showed a larger full width at half maximum (FWHM) of the emission coming from the QWs grown on the vicinal surfaces with respect to the nominal sample. Transmission-electron-microscopy (TEM) measurements revealed the presenceof step bunches that clearly roughen the interfaces of the heterostructures and worsen the optical properties of the samples. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 26/01/21 alle ore 04:30:37