Synthesis and characterization of axially periodic Zn2SnO4 dendritic nanostructures |
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Authors: | Shen Jun Ge Bing-Hui Chu Wei-Guo Luo Shu-Dong Zhang Zeng-Xing Liu Dong-Fang Liu Li-Feng Ma Wen-Jun Ren Yan Xiang Yan-Juan Wang Chao-Ying Wang Gang and Zhou Wei-Ya |
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Institution: | Beijing National Laboratory for Condensed Matter
Physics, Institute of Physics,
Chinese Academy of Sciences,
Beijing
100190, China; Beijing National Laboratory for Condensed Matter
Physics, Institute of Physics,
Chinese Academy of Sciences,
Beijing
100190, China;Graduate School of the Chinese Academy of Sciences,
Beijing 100039, China; National Center for Nanoscience and Nanotechnology,
Beijing 100190, China |
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Abstract: | Zn2SnO4 (ZTO) nanowires with a unique dendritic
nanostructure were synthesized via a simple one-step thermal
evaporation and condensation process. The morphology and
microstructure of the ZTO nanodendrite have been investigated by
means of field emission scanning electron microscopy (SEM), x-ray
diffraction (XRD) and high-resolution transmission electron
microscopy (HRTEM). SEM observation revealed the formation of
branched nanostructures and showed that each branch exhibited a
unique periodic structure formed by a row of overlaid rhombohedra of
ZTO nanocrystals along the axis of the nanobranch. HRTEM studies
displayed that the branches grew homoepitaxially as
single-crystalline nanowires from the ZTO nanowire backbone. A
possible growth model of the branched ZTO nanowires is discussed. To
successfully prepare branched structures would provide an opportunity
for both fundamental research and practical applications, such as
three-dimensional nanoelectronics, and opto-electronic nanodevices. |
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Keywords: | Zn2SnO4 epitaxial
growth dendrite photoluminescence |
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