Effect of Hydrazine on Al-Contacted Carbon Nanotube Field Effect Transistors Using Density Functional Theory
Effect of Hydrazine on Al-Contacted Carbon Nanotube Field Effect Transistors Using Density Functional Theory
复制标题
利用密度泛函理论研究肼对铝接触碳纳米管场效应晶体管的影响
DOI：
10.1166/jcp.2009.004
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Casterman D
中科院分区：
文献类型：
--
作者：
Casterman D
用密度泛函理论研究了联氨对铝接触碳纳米管场效应晶体管(CNTFET)的影响。N2H4与Al的(100)-板条相互作用，通过最近的一对孤立的氮原子将电荷从分子交换到金属。与半导体碳纳米管相互作用，发现分子通过在碳纳米管上留下一些电荷而从纳米管中排斥。N2H4与碳纳米管的相互作用比与铝的相互作用弱得多，表明N2H4对n型电学行为的主要贡献来自于碳纳米管的局域功函数降低，而不是掺杂。
The effect of hydrazine, N2H4, on Aluminium (Al) contacted carbon nanotubes field effect transistors (CNTFETs) is explored using Density Functional Theory. The interaction of N2H4 with a (100)-slab of Al results in an exchange of charge from the molecule to the metal through the lone pair of the nearest atom of Nitrogen. Interacting with a semiconducting carbon nanotube, the molecule is found to be repulsed from the nanotube by leaving some charge on the CNT. The interaction of N2H4 with CNT is much weaker than that with Al suggesting that the main contribution to n-type electrical behavior arises from the local workfunction decrease rather than doping of CNT.