Facile synthesis of novel one-dimensional hierarchical SiC@SiO2@c-C nanostructures and their field emission properties
Facile synthesis of novel one-dimensional hierarchical SiC@SiO2@c-C nanostructures and their field emission properties
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新型一维分层SiC@SiO2@c-C纳米结构的简便合成及其场发射性能
DOI:
10.1039/c4ra11931b
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发表时间:
2014-10
期刊:
影响因子:
3.9
通讯作者:
Lu Gong
中科院分区:
文献类型:
--
作者:
Jian Zhao;Alan Meng;Fenglin Ma;Lu Gong
One-dimensional hierarchical nanostructures composed of SiC cores, SiO2 interlayers and crystalline carbon coatings (SiC@SiO2@c-C) were successfully synthesized by Ni-assisted chemical vapor deposition method. The nanostructures delivered a low turn-on field of 0.8 V μm−1 and threshold field of 2.6 V μm−1 when evaluated as a field emission cathode material. With the advantages of synergy between different layers, the attractive performance was adequately illustrated by the energy band diagram structures of the interface area. The coaxial nanostructures with a semiconductor–insulator–semiconductor geometry have promising applications in nanoelectronics display devices.
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