A study of the size-dependent elastic properties of CdSe nanowires

被引：10
|
作者：
Chen, Na [1 ]
Xie, Yiqun [1 ]
Liu, Feng [1 ]
Ye, Xiang [1 ]
Shi, WangZhou [1 ]
机构：
[1] Shanghai Normal Univ, Dept Phys, Shanghai 200234, Peoples R China
来源：
COMPUTATIONAL MATERIALS SCIENCE | 2013年 / 77卷
基金：
中国国家自然科学基金;
关键词：
Molecular dynamics; Cadmium selenide; Nanowires; Elastic properties; MOLECULAR-DYNAMICS; NANOCRYSTALS;
D O I：
10.1016/j.commatsci.2013.04.052
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The size dependence of elastic properties of CdSe nanowire in [0 0 0 1] direction is investigated by all atoms molecular dynamic simulation. We found that both the Young's modulus and Poisson ratio of the nanowires decrease with increasing radius, and the Young's moduli of the nanowires studied here are significantly higher than that of bulk material. The physical origin of the size dependence can be explained by the factor that high surface stiffness effect decays with decreasing surface to volume ratio. The results of VDOS show that the high frequency part will enhance as the nanowire radius decreases, this trend is consistent with that of the Young's modulus of the nanowires. (c) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：245 / 249
页数：5
相关论文
共 50 条
  • [31] Numerical Evaluation of the Size-Dependent Elastic Properties of Cellular Polymers
    Chandrashekar, Gurudutt
    Han, Chung-Souk
    JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 2018, 140 (01):
  • [32] The size-dependent bending elastic properties of nanobeams with surface effects
    Guo, Jian-Gang
    Zhao, Ya-Pu
    NANOTECHNOLOGY, 2007, 18 (29)
  • [33] Size-dependent melting thermodynamic properties of selenium nanowires in theory and experiment
    Zhang, Jianhua
    Fu, Qingshan
    Cui, Zixiang
    Xue, Yongqiang
    CRYSTENGCOMM, 2019, 21 (03) : 430 - 438
  • [34] Size-dependent strain effects on electronic and optical properties of ZnO nanowires
    Yang, Yurong
    Yan, X. H.
    Xiao, Yang
    Lu, Di
    APPLIED PHYSICS LETTERS, 2010, 97 (03)
  • [35] Size-dependent transport and thermoelectric properties of individual polycrystalline bismuth nanowires
    Boukai, A
    Xu, K
    Heath, JR
    ADVANCED MATERIALS, 2006, 18 (07) : 864 - +
  • [36] Modified continuum theoretical model for size-dependent piezoelectric properties of nanowires
    Li, Jiangang
    Lei, Xiao
    Zhang, Jingqiong
    Yao, Haiyan
    Gao, Zhixiang
    ACTA MECHANICA, 2023, 234 (03) : 1169 - 1181
  • [37] Modified continuum theoretical model for size-dependent piezoelectric properties of nanowires
    Jiangang Li
    Xiao Lei
    Jingqiong Zhang
    Haiyan Yao
    Zhixiang Gao
    Acta Mechanica, 2023, 234 : 1169 - 1181
  • [38] Size-dependent optical properties and carriers dynamics in CdSe/ZnS quantum dots
    马红
    马国宏
    王文军
    高学喜
    马洪良
    ChinesePhysicsB, 2008, 17 (04) : 1280 - 1285
  • [39] Size-dependent optical properties and carriers dynamics in CdSe/ZnS quantum dots
    Department of Physics, Shanghai University, Shanghai 200444, China
    不详
    不详
    Chin. Phys., 2008, 4 (1280-1285):
  • [40] Lateral Size-Dependent Spontaneous and Stimulated Emission Properties in Colloidal CdSe Nanoplatelets
    Olutas, Murat
    Guzelturk, Burak
    Kelestemur, Yusuf
    Yeltik, Aydan
    Delikanli, Savas
    Demir, Hilmi Volkan
    ACS NANO, 2015, 9 (05) : 5041 - 5050
12345