Pregled bibliografske jedinice broj: 457418
Exciton-phonon coupling in individual GaAs nanowires studied using resonant Raman spectroscopy
Exciton-phonon coupling in individual GaAs nanowires studied using resonant Raman spectroscopy // Physical Review B - Condensed Matter and Materials Physics, 80 (2009), 20; 201314-201317 doi:10.1103/PhysRevB.80.201314 (međunarodna recenzija, članak, znanstveni)
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Naslov
Exciton-phonon coupling in individual GaAs nanowires studied using resonant Raman spectroscopy
Autori
Brewster, Megan ; Schimek, Oliver ; Reich, Stephanie ; Gradečak, Silvija
Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 80
(2009), 20;
201314-201317
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Fröhlich coupling ; GaAs ; nanowires
Sažetak
The Fröhlich coupling strength of individual GaAs nanowires is investigated by resonant micro-Raman spectroscopy measurements near the direct bandgap Eg. Large 2LO/1LO intensities up to 5.7 are observed in an individual GaAs nanowire. A 2LO resonance profile of the GaAs nanowire agrees well with a two-phonon-scattering model, suggesting excitonic scattering. These results advance the understanding of electron-phonon coupling and exciton scattering in quasi-one-dimensional systems and in GaAs at Eg, allowing for the development and optimization of nanowire optoelectronic devices.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
119-0982886-1009 - Struktura i svojstva posebnih nanomaterijala dobivenih suvremenim tehnikama (Tonejc, Antun, MZOS ) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
Profili:
Silvija Gradečak
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
