Controlling the electronic structure of SnO2 nanowires by Mo-doping

Mo-doped SnO2 （MTO） nanowires are synthesized by an in-situ doping chemical vapour deposition method. Raman scattering spectra indicate that the lattice symmetry of MTO nanowires lowers with the increase of Mo doping, which implies that Mo ions do enter into the lattice of SnO2 nanowire. Ultraviolet...

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Published inChinese physics B Vol. 19; no. 2; pp. 352 - 356
Main Author 罗志华 唐东升 海阔 余芳 陈亚奇 何熊武 彭跃华 袁华军 羊亿
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.02.2010
Subjects
Chemical vapor deposition
Doping
Lattices
Molybdenum
Nanowires
Spectra
Tin dioxide
Tin oxides
二氧化锡
兴奋剂
化学气相沉积法
拉曼散射光谱
电子结构
精确控制
纳米线
钼掺杂
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Summary:Mo-doped SnO2 （MTO） nanowires are synthesized by an in-situ doping chemical vapour deposition method. Raman scattering spectra indicate that the lattice symmetry of MTO nanowires lowers with the increase of Mo doping, which implies that Mo ions do enter into the lattice of SnO2 nanowire. Ultraviolet-visible diffuse reflectance spectra show that the band gap of MTO nanowires decreases with the increase of Mo concentration. The photoluminescence emission of SnO2 nanowires around 580~nm at room temperature can also be controlled accurately by Mo-doping, and it is extremely sensitive to Mo ions and will disappear when the atomic ratio reaches 0.46%.
Bibliography:doping nanostructures chemical vapor deposition processes semiconducting materials
TN304.21
11-5639/O4
TH134
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/19/2/026102