Issue 12, 2019, Issue in Progress
From the journal:

RSC Advances

Motion sensors achieved from a conducting polymer-metal Schottky contact†

Yang Zhou,a   Jian Fang,a   Hongxia Wang,a   Hua Zhou,a   Guilong Yan,a   Hao Shao,a   Yan Zhaoa  and  Tong Lin ORCID logo *a  

* Corresponding authors

a Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
E-mail: tong.lin@deakin.edu.au

Abstract

Mechanical-to-electrical energy conversion devices show potential applications in the detection of movements. Previous studies on these sensor devices are mainly based on piezoelectricity or triboelectricity, which typically generates AC signals. In this study, a movement sensor that generated DC signals based on a conducting polymer-metal Schottky diode was prepared for the first time. Using the Al|poly(3,4-ethylenedioxythiophene)|Au device as a model, we showed that the sensor device could detect the touch and sliding movements. Both the pressure of the Al electrode touching the PEDOT surface and its sliding speed affected the voltage outputs. The device showed a high response speed of 1.7 s at 39.8 kPa. The modified device can even measure the sliding speed. The DC output allows the use of electrical energy for running other electronic devices. A conducting polymer-metal Schottky contact may be useful for the development of DC output movement sensors.

Graphical abstract: Motion sensors achieved from a conducting polymer-metal Schottky contact

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Article information

DOI
https://doi.org/10.1039/C9RA00120D
Article type
Paper
Submitted
06 Jan 2019
Accepted
13 Feb 2019
First published
25 Feb 2019
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2019,9, 6576-6582

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Motion sensors achieved from a conducting polymer-metal Schottky contact

Y. Zhou, J. Fang, H. Wang, H. Zhou, G. Yan, H. Shao, Y. Zhao and T. Lin, RSC Adv., 2019, 9, 6576 DOI: 10.1039/C9RA00120D

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