通过原位共振和弯曲方法测定Sb2S3纳米线的杨氏模量

Determination of Young's modulus of Sb2S3 nanowires by in situ resonance and bending methods.

作者信息

Jasulaneca Liga, Meija Raimonds, Livshits Alexander I, Prikulis Juris, Biswas Subhajit, Holmes Justin D, Erts Donats

机构信息

Institute of Chemical Physics, University of Latvia, Raina blvd 19, Riga, LV-1586, Latvia.

Materials Chemistry and Analysis Group, Department of Chemistry, University College Cork, Cork, Ireland; CRANN & AMBER, Trinity College Dublin, Dublin 2, Ireland; Tyndall National Institute, Lee Maltings, Cork, Ireland.

出版信息

Beilstein J Nanotechnol. 2016 Feb 19;7:278-83. doi: 10.3762/bjnano.7.25. eCollection 2016.

DOI:10.3762/bjnano.7.25

PMID:26977384

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4778499/

Abstract

In this study we address the mechanical properties of Sb2S3 nanowires and determine their Young's modulus using in situ electric-field-induced mechanical resonance and static bending tests on individual Sb2S3 nanowires with cross-sectional areas ranging from 1.1·10(4) nm(2) to 7.8·10(4) nm(2). Mutually orthogonal resonances are observed and their origin explained by asymmetric cross section of nanowires. The results obtained from the two methods are consistent and show that nanowires exhibit Young's moduli comparable to the value for macroscopic material. An increasing trend of measured values of Young's modulus is observed for smaller thickness samples.

摘要

在本研究中，我们研究了Sb2S3纳米线的力学性能，并通过对横截面积在1.1·10(4) nm(2)至7.8·10(4) nm(2)范围内的单个Sb2S3纳米线进行原位电场诱导机械共振和静态弯曲测试，来确定其杨氏模量。观察到相互正交的共振，并通过纳米线的不对称横截面解释了其起源。两种方法获得的结果一致，表明纳米线的杨氏模量与宏观材料的值相当。对于较薄的样品，观察到杨氏模量测量值呈上升趋势。