Novel dual-chirality heterostructure nanoscrews and kinetics imaging of linear-to-rotary growth

The controllable synthesis and growth kinetics of new nanostructures has an enormous impact on the fabrication and application of nanomaterials, and continues to be a central challenge in nanoscience and nanotechnology. On the other hand, sophisticated helical structures have been an attractive subj...

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Bibliographic Details
Published in:CrystEngComm 2011-01, Vol.13 (5), p.149-1497
Main Authors: Cui, H, Yang, G. Z, Sun, Y, Wang, C. X
Format: Article
Language:English
Subjects:
Helical
Imaging
Nanocomposites
Nanomaterials
Nanostructure
Self assembly
Stability
Synthesis
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Summary:The controllable synthesis and growth kinetics of new nanostructures has an enormous impact on the fabrication and application of nanomaterials, and continues to be a central challenge in nanoscience and nanotechnology. On the other hand, sophisticated helical structures have been an attractive subject due to its significance in understanding biological self-assembly and appealing application in nanoscience. Here, we report the synthesis of novel dual-chirality hetero nanoscrews with controllable backbones and circles of SiO 2 spiral threads by a single-step method and reveal experimentally its growth kinetics imaging for the first time. The nanoscrews are composed of amorphous SiO 2 winds around cone-shaped single crystal β-SiC backbone via linear-to-rotary growth process. Our finding might open a new door to understand the growth process of sophisticated helical nanostructures. We demonstrate growth kinetics imaging for the novel dual-chirality hetero nanoscrews grown via a VLS growth mechanism.
ISSN:1466-8033
1466-8033
DOI:10.1039/c0ce00442a