Volume 213, Issue 8 pp. 2208-2215
Original Paper

Piezotronic-based magnetoelectric sensor: Fabrication and response

Jorit Gröttrup

Jorit Gröttrup

Functional Nanomaterials, Institute for Materials Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany

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Sören Kaps

Corresponding Author

Sören Kaps

Functional Nanomaterials, Institute for Materials Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany

Corresponding author: e-mail [email protected], Phone: +49 431 880 6116, Fax: + 49 431 880 6124

e-mail [email protected]

e-mail [email protected]

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Jürgen Carstensen

Jürgen Carstensen

Functional Nanomaterials, Institute for Materials Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany

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Daria Smazna

Daria Smazna

Functional Nanomaterials, Institute for Materials Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany

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Yogendra Kumar Mishra

Corresponding Author

Yogendra Kumar Mishra

Functional Nanomaterials, Institute for Materials Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany

Corresponding author: e-mail [email protected], Phone: +49 431 880 6116, Fax: + 49 431 880 6124

e-mail [email protected]

e-mail [email protected]

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André Piorra

André Piorra

Inorganic Functional Materials, Institute for Materials Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany

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Christine Kirchhof

Christine Kirchhof

Inorganic Functional Materials, Institute for Materials Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany

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Eckhard Quandt

Eckhard Quandt

Inorganic Functional Materials, Institute for Materials Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany

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Rainer Adelung

Corresponding Author

Rainer Adelung

Functional Nanomaterials, Institute for Materials Science, Kiel University, Kaiserstr. 2, 24143 Kiel, Germany

Corresponding author: e-mail [email protected], Phone: +49 431 880 6116, Fax: + 49 431 880 6124

e-mail [email protected]

e-mail [email protected]

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First published: 04 March 2016
Citations: 19

Abstract

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 (IV) 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 IV 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.pssa201532924-gra-0001

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