TY - JOUR
T1 - Synthesis of β-Ga2O3 nanowire from elemental Ga metal and its photoluminescence study
AU - Guha, Pinaki
AU - Chakrabarti, Supriya
AU - Chaudhuri, Subhadra
PY - 2004/6/1
Y1 - 2004/6/1
N2 - Gallium oxide (Ga2O3) one-dimensional (ID) nanostructure was fabricated through a simple physical evaporation of elemental gallium in argon atmosphere using gold-sputtered silicon as the substrate. The shape of the ID structure was controlled by the thickness of the sputtered gold layer. Monoclinic Ga2O3 structure was identified by X-ray diffraction XRD and electron diffraction patterns. High-resolution transmission electron microscopy revealed that these nanowires were single crystalline in nature. Energy dispersive X-ray indicated stoichiometric composition of the nanomaterial. Photoluminescence measurement under excitation at 250 nm showed that these nanowires had three emission peaks at 373, 410 and 475 nm, which may be attributed to the defects such as oxygen vacancy (VO) and gallium-oxygen vacancy pair (VO,VGa).
AB - Gallium oxide (Ga2O3) one-dimensional (ID) nanostructure was fabricated through a simple physical evaporation of elemental gallium in argon atmosphere using gold-sputtered silicon as the substrate. The shape of the ID structure was controlled by the thickness of the sputtered gold layer. Monoclinic Ga2O3 structure was identified by X-ray diffraction XRD and electron diffraction patterns. High-resolution transmission electron microscopy revealed that these nanowires were single crystalline in nature. Energy dispersive X-ray indicated stoichiometric composition of the nanomaterial. Photoluminescence measurement under excitation at 250 nm showed that these nanowires had three emission peaks at 373, 410 and 475 nm, which may be attributed to the defects such as oxygen vacancy (VO) and gallium-oxygen vacancy pair (VO,VGa).
KW - β-GaO
KW - Growth mechanism
KW - Nanostructure
KW - Photoluminescence
KW - Physical vapor deposition
UR - http://www.scopus.com/inward/record.url?scp=2642580089&partnerID=8YFLogxK
U2 - 10.1016/j.physe.2004.01.003
DO - 10.1016/j.physe.2004.01.003
M3 - Article
AN - SCOPUS:2642580089
SN - 1386-9477
VL - 23
SP - 81
EP - 85
JO - Physica E: Low-dimensional Systems and Nanostructures
JF - Physica E: Low-dimensional Systems and Nanostructures
IS - 1-2
ER -