Flexible pressure sensor based on graphene aerogel microstructures functionalized with CdS nanocrystalline thin film.

Plesco, Irina, Dragoman, Mircea, Strobel, Julian, Ghimpu, Lidia, Schütt, Fabian, Dinescu, Adrian, Ursaki, Veaceslav, Kienle, Lorenz, Adelung, Rainer and Tiginyanu, Ion (2018) Flexible pressure sensor based on graphene aerogel microstructures functionalized with CdS nanocrystalline thin film. Superlattices and Microstructures, 117 . pp. 418-422. DOI 10.1016/j.spmi.2018.03.064.

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Abstract

In this paper, we report on functionalization of graphene aerogel with a CdS thin film deposited by magnetron sputtering and on the development of flexible pressure sensors based on ultra-lightweight CdS-aerogel nanocomposite. Analysis by scanning electron microscopy, transmission electron microscopy and energy dispersive X-ray analysis disclose the uniform deposition of nanocrystalline CdS films with quasi-stoichiometric composition. The piezoresistive response of the aforementioned nanocomposite in the pressure range from 1 to 5 atm is found to be more than one order of magnitude higher than that inherent to suspended graphene membranes, leading to an average sensitivity as high as 3.2 × 10−4 kPa−1.

Document Type: Article
Keywords: Graphene aerogels, CdS, Nanocrystalline thin films, Pressure sensors, Magnetron sputtering
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1016/j.spmi.2018.03.064
ISSN: 0749-6036
Projects: Future Ocean
Date Deposited: 31 Jul 2018 09:47
Last Modified: 19 Mar 2019 11:00
URI: http://oceanrep.geomar.de/id/eprint/43837

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