Mechanical and electronic properties of ultrathin nanodiamonds under uniaxial compressions

被引：17

作者：

Jiang, Xue ^{[1
,2
,3
]}

Zhao, Jijun ^{[1
,2
]}

Zhuang, Chunqiang ^{[1
,2
,3
]}

Wen, Bin ^{[3
]}

Jiang, Xin ^{[3
,4
]}

机构：

[1] Dalian Univ Technol, Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China

[2] Dalian Univ Technol, Coll Adv Sci & Technol, Dalian 116024, Peoples R China

[3] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China

[4] Univ Siegen, Inst Mat Engn, D-57076 Siegen, Germany

来源：

基金：

中国国家自然科学基金;

关键词：

Nanodiamonds; Young's modulus; Strain; Electronic properties; CHEMICAL-VAPOR-DEPOSITION; NANOCRYSTALLINE DIAMOND FILMS; ULTRANANOCRYSTALLINE DIAMOND; INTERSTELLAR DIAMONDS; MEGABAR STRESSES; SINGLE-CRYSTAL; THIN-FILMS; PRESSURE; CARBON; NANOPARTICLES;

D O I：

10.1016/j.diamond.2009.10.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mechanical and electronic properties Of Ultrathin hydrogenated nanodiamonds (with diameters from 071 nm to 14 nm) under uniaxial compression have been investigated by means of density functional theory calculations. The computed Young's moduli of nanodiamonds are lower than the bulk value and increase with size. which can be fitted to an empirical function of diameter Similar to the bulk diamond, the HOMO-LUMO gaps of nanodiamond reduces under uniaxial strain. implying tunable electronic properties via mechanical deformations. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：21 / 25

页数：5

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