Structural inhomogeneity and piezoelectric enhancement in ZnO nanobelts

被引：21

作者：

Momeni, Kasra ^{[1
]}

Asthana, Anjana ^{[2
]}

Prasad, Abhishek ^{[3
]}

Yap, Yoke K. ^{[3
]}

Shahbazian-Yassar, Reza ^{[1
]}

机构：

[1] Michigan Technol Univ, Dept Mech Engn, Houghton, MI 49931 USA

[2] Michigan Technol Univ, Dept Mat Sci & Engn, Houghton, MI 49931 USA

[3] Michigan Technol Univ, Dept Phys, Houghton, MI 49931 USA

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2012年 / 109卷 / 01期

基金：

美国国家科学基金会;

关键词：

ATOMIC-FORCE MICROSCOPY; THIN-FILMS; SPONTANEOUS POLARIZATION; SPUTTERED ZNO;

D O I：

10.1007/s00339-012-7081-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, piezoelectricity of individual ZnO nanobelts grown along the [0 1 A << 0] direction is studied using piezoresponse force microscopy (PFM). It is found that the effective piezoelectric coefficient of these NBs, , is increasing from 2.7 pm/V at 30 kHz to 44 pm/V at 150 kHz. The results were explained by the Debye model, where structural inhomogeneity in our NBs was shown to be responsible for piezoelectric enhancement.

引用

页码：95 / 100

页数：6

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