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
Publisher:	Elsevier
Projects:	Future Ocean
Date Deposited:	31 Jul 2018 09:47
Last Modified:	19 Mar 2019 11:00
URI:	https://oceanrep.geomar.de/id/eprint/43837

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