TeO2-core/SnO2-sheath nanowires
作者： Changhyun Jin , Kyungjoon Baek , Jungkeun Lee , Sunghoon Park , Chongmu Lee
DOI: 10.1016/J.PHYSE.2011.03.004
关键词:
摘要: Abstract TeO 2 /SnO nanowires were synthesized by a two-step process comprising the thermal evaporation of Te powders and atomic layer deposition SnO . Transmission electron microscopy X-ray diffraction analysis results indicate that cores shells coaxial are polycrystalline monoclinic-type simple orthorhombic-type , respectively, although amorphous before annealing. Photoluminescence measurement shows have blue emission band centered at approximately 460 nm. The is slightly enhanced in intensity sheathing them with further annealing reducing atmosphere. Energy-dispersive spectroscopy concentration profiles suggest enhancement attributed to increases both O vacancy Sn interstitial concentrations during process.
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