Cathodoluminescence studies of the inhomogeneities in Sn-doped Ga2O3 nanowires.
Nano Lett
; 9(9): 3245-51, 2009 Sep.
Article
em En
| MEDLINE
| ID: mdl-19670846
ABSTRACT
Cathodoluminescence real-color imaging and spectroscopy were employed to study the properties of Ga(2)O(3) nanowires grown with different Sn/Ga ratios. The structures grown under Sn-rich conditions show large spectral emission variation, ranging from blue to red, with a green transition zone. Spectral emission changes correlate with changes in the chemical composition and structure found by energy dispersive spectroscopy and electron diffraction. A sharp transition from green to red emission correlates with a phase transition of beta-Ga(2)O(3) to polycrystalline SnO(2). The origin of the green emission band is discussed based on ab initio calculation results.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Estanho
/
Nanofios
/
Gálio
/
Medições Luminescentes
Idioma:
En
Revista:
Nano Lett
Ano de publicação:
2009
Tipo de documento:
Article