Size Independence and Doping Dependence of Bending Modulus in ZnO Nanowires
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- 作者：Yunhua Huang<sup>† ; sup> ; Yue Zhang*<sup>† ; sup><sup>‡ ; sup> ; Xueqiang Wang<sup>† ; sup> ; Xuedong Bai<sup>§ ; sup> ; Yousong Gu<sup>† ; sup> ; Xiaoqin Yan<sup>† ; su
- 刊名：Crystal Growth & Design
- 出版年：2009
- 出版时间：April 1, 2009
- 年：2009
- 卷：9
- 期：4
- 页码：1640-1642
- 全文大小：137K
- 年卷期：v.9,no.4(April 1, 2009)
- ISSN：1528-7505
文摘
The bending moduli of individual pure and In-doped ZnO nanowires with different dimensions were studied in situ inside a transmission electron microscopy (TEM) using a mechanical resonance method. The results revealed that the elastic bending modulus of ZnO nanowires is dependent remarkably on doping but independent of size in the experimental nanoscaled range. Taking the structural orientation into account, doping with 17.2 at % In enhances the bending modulus of ZnO nanowires in the [010] direction by the average of 120%. The doping effect on the bending modulus of ZnO nanowires was explained by first-principles calculations.