Piezotronic-based magnetoelectric sensor: Fabrication and response

Grottrup, J., Kaps, S., Carstensen, J., Smazna, D., Mishra, Y. K., Piorra, A., Kirchhof, C., Quandt, E. and Adelung, Rainer (2016) Piezotronic-based magnetoelectric sensor: Fabrication and response Physica Status Solidi a-Applications and Materials Science, 213 (8). pp. 2208-2215. DOI 10.1002/pssa.201532924.

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In the present work, magnetoelectric-piezotronic devices have been fabricated using exceptionally long (mm long) ZnO nano-and microneedles grown by the simple and versatile flame transport synthesis approach. The piezotronic response to an applied magnetic field has been investigated for state of the art magnetoelectric (ME) sensors containing AlN and PZT as piezoelectric phase as well as sensors based on ZnO nano- and microneedles, which are among the best described materials in terms of piezotronic applications. The current voltage (I-V) characteristics of the fabricated electronic sensor devices have been measured to understand the individual contributions of the piezoelectric and semiconducting properties. The experimentally obtained correlations between the piezotronic effect and the I-V responses have been fitted using appropriate theoretical models which have been discussed in detail. The current observations demonstrate that ME based piezotronic sensing devices have complementary roles, on one hand, the ME principle helps to get a better understanding of the piezotronic nature of quasi one dimensional (Q1D) ZnO nano-and microneedles, and on the other hand, the integration of a piezotronic effect leads to an improved sensitivity of the ME devices and hence to a better quality of ME sensors. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Document Type: Article
Additional Information: Times Cited: 0 Groettrup, Jorit Kaps, Soeren Carstensen, Juergen Smazna, Daria Mishra, Yogendra Kumar Piorra, Andre Kirchhof, Christine Quandt, Eckhard Adelung, Rainer
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
DOI etc.: 10.1002/pssa.201532924
ISSN: 1862-6300
Projects: Future Ocean
Date Deposited: 16 Mar 2017 07:15
Last Modified: 27 Feb 2018 10:26
URI: http://eprints.uni-kiel.de/id/eprint/36114

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