Issue 43, 2012
From the journal:

Journal of Materials Chemistry

A facile method to fabricate vertically aligned (K,Na)NbO3 lead-free piezoelectric nanorods

Ying Xu,a   Qi Yua  and  Jing-Feng Li*a  

* Corresponding authors

a State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, P. R. China
E-mail: jingfeng@mail.tsinghua.edu.cn
Fax: +86-10-62771160
Tel: +86-10-62784845

Abstract

This paper reports on a hydrothermal process to grow vertically aligned (K,Na)NbO3 lead-free piezoelectric nanorods on a single crystal SrTiO3 substrate. Under optimized conditions, micrometer-order-long (K,Na)NbO3 nanorods with a sectional width of about 100 nm were vertically grown on a (100)-cut SrTiO3 wafer with an oriented (K,Na)NbO3 film as a seeding layer, whereas KNN rods were not preferentially grown on bare wafers and no vertical KNN rods were formed on (110)- or (111)-cut substrates even with the (K,Na)NbO3 films. The growth direction of the nanorods was revealed to be along the 〈100〉 direction, which is deduced to contribute to the vertical growth of nanorods on (100)-cut SrTiO3 substrates. The vertical arrays of KNN nanorods may find potential applications in energy harvesting nanodevices and nanoscale 1–3 type multifunctional composites.

Graphical abstract: A facile method to fabricate vertically aligned (K,Na)NbO3 lead-free piezoelectric nanorods

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Article information

DOI
https://doi.org/10.1039/C2JM35090D
Article type
Paper
Submitted
31 Jul 2012
Accepted
04 Sep 2012
First published
04 Sep 2012

J. Mater. Chem., 2012,22, 23221-23226

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A facile method to fabricate vertically aligned (K,Na)NbO3 lead-free piezoelectric nanorods

Y. Xu, Q. Yu and J. Li, J. Mater. Chem., 2012, 22, 23221 DOI: 10.1039/C2JM35090D

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