Synthesis and characterization of indium-doped ZnO nanowires with periodical single-twin structures.
Identifieur interne : 002885 ( Main/Exploration ); précédent : 002884; suivant : 002886Synthesis and characterization of indium-doped ZnO nanowires with periodical single-twin structures.
Auteurs : RBID : pubmed:16570966Abstract
In-doped ZnO (IZO) nanowires have been synthesized by a thermal evaporation method. The morphology and microstructure of the IZO nanowires have been extensively investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HRTEM). The products in general contain several kinds of nanowires. In this work, a remarkable type of IZO zigzag nanowire with a periodical twinning structure has been investigated by transmission electron microscopy (TEM). HRTEM observation reveals that this type of IZO nanowire has an uncommonly observed zinc blend crystal structure. These nanowires, with a diameter about 100 nm, grow along the [111] direction with a well-defined twinning relationship and a well-coherent lattice across the boundary. In addition, an IZO nanodendrite structure was also observed in our work. A growth model based on the vapor-liquid-solid mechanism is proposed for interpreting the growth of zigzag nanowires in our work. Due to the heavy doping of In, the emission peak in photoluminescence spectra has red-shifted as well as broadened seriously.
DOI: 10.1021/jp057476v
PubMed: 16570966
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<author><name sortKey="Xu, Liang" uniqKey="Xu L">Liang Xu</name>
<affiliation><nlm:affiliation>School of Materials Science and Engineering, Hefei University of Technology, Hefei, Anhui, 23009 PR China. andyxul@163.com</nlm:affiliation>
<country wicri:rule="url">Colombie</country>
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<author><name sortKey="Su, Yong" uniqKey="Su Y">Yong Su</name>
</author>
<author><name sortKey="Chen, Yiqing" uniqKey="Chen Y">Yiqing Chen</name>
</author>
<author><name sortKey="Xiao, Haihua" uniqKey="Xiao H">Haihua Xiao</name>
</author>
<author><name sortKey="Zhu, Li Ang" uniqKey="Zhu L">Li-ang Zhu</name>
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<author><name sortKey="Zhou, Qingtao" uniqKey="Zhou Q">Qingtao Zhou</name>
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<author><name sortKey="Li, Sen" uniqKey="Li S">Sen Li</name>
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<front><div type="abstract" xml:lang="en">In-doped ZnO (IZO) nanowires have been synthesized by a thermal evaporation method. The morphology and microstructure of the IZO nanowires have been extensively investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HRTEM). The products in general contain several kinds of nanowires. In this work, a remarkable type of IZO zigzag nanowire with a periodical twinning structure has been investigated by transmission electron microscopy (TEM). HRTEM observation reveals that this type of IZO nanowire has an uncommonly observed zinc blend crystal structure. These nanowires, with a diameter about 100 nm, grow along the [111] direction with a well-defined twinning relationship and a well-coherent lattice across the boundary. In addition, an IZO nanodendrite structure was also observed in our work. A growth model based on the vapor-liquid-solid mechanism is proposed for interpreting the growth of zigzag nanowires in our work. Due to the heavy doping of In, the emission peak in photoluminescence spectra has red-shifted as well as broadened seriously.</div>
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<Abstract><AbstractText>In-doped ZnO (IZO) nanowires have been synthesized by a thermal evaporation method. The morphology and microstructure of the IZO nanowires have been extensively investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HRTEM). The products in general contain several kinds of nanowires. In this work, a remarkable type of IZO zigzag nanowire with a periodical twinning structure has been investigated by transmission electron microscopy (TEM). HRTEM observation reveals that this type of IZO nanowire has an uncommonly observed zinc blend crystal structure. These nanowires, with a diameter about 100 nm, grow along the [111] direction with a well-defined twinning relationship and a well-coherent lattice across the boundary. In addition, an IZO nanodendrite structure was also observed in our work. A growth model based on the vapor-liquid-solid mechanism is proposed for interpreting the growth of zigzag nanowires in our work. Due to the heavy doping of In, the emission peak in photoluminescence spectra has red-shifted as well as broadened seriously.</AbstractText>
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