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ZnO/PDMS nanocomposite generator: Interphase influence in the nanocomposite electro-mechanical properties and output voltage

Perez-Lopez, Carlos Andres and Perez-Taborda, Jaime Andres and Labre, Cilene and Marmolejo-Tejada, Juan Manuel and Jaramillo-Botero, Andres and Avila, Alba (2021) ZnO/PDMS nanocomposite generator: Interphase influence in the nanocomposite electro-mechanical properties and output voltage. Energy Reports, 7 . pp. 896-903. ISSN 2352-4847. doi:10.1016/j.egyr.2021.01.086.

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Nanocomposite generators convert mechanical energy into electrical energy and are attractive low-power solutions for self-powered sensors and wearables. Homogeneous dispersion, high concentration, and orientation of the embedded filler strategies have been assumed to maximize the voltage output in nanocomposite generators. This work contrast these assumptions by studying the dominance of the interphase in low filler concentrations (¡10%) and random dispersions in a ZnO/PDMS nanocomposite generator with high peak-to-peak voltage generation capabilities (≈150 V). The interphase in the nanocomposite was studied by the analysis of the random dispersion of the nanocomposite through the estimation of the effective volume fraction (ϕ_(agg)) which allowed us to identify three levels of interaction: individual interphases, interacting interphases, and overlapping between NPs and interphases. The interacting interphase is responsible here for the high generated voltage. In addition, the impact of the interphase was studied by applying lumped element (LE) and interphasial power-law (IPL) models that capture the measured voltages and the electromechanical film properties. The obtained results justify that engineering of interphases could be a design strategy for high voltage generation.

Item Type:Article
Related URLs:
URLURL TypeDescription
Perez-Lopez, Carlos Andres0000-0002-7078-9049
Perez-Taborda, Jaime Andres0000-0002-5202-9708
Labre, Cilene0000-0001-8351-0644
Marmolejo-Tejada, Juan Manuel0000-0002-2363-5100
Jaramillo-Botero, Andres0000-0003-2844-0756
Avila, Alba0000-0003-1241-2080
Additional Information:© 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license ( Received 6 November 2020, Revised 22 January 2021, Accepted 25 January 2021, Available online 8 February 2021. J.A. Perez-Taborda and J.M. Marmolejo-Tejada acknowledge the financial support from Department of Science, Technology, and Innovation (Colciencias) fellowship for the grant agreement N°.808. The authors wish also to thank the researchers Dr. Elvis Lopez and Dr. A. Mello for XPS measurements at the Laboratory of Surface and Nanostructures, Brazilian Physical Research Center - RJ, Brazil. This work was supported by Minciencias (Colombia) under Grant 808-2018 and a Joint Research Grant Program (2018) “Convocatoria interinstitucional de investigación en Ingeniería” between the Pontificia Universidad Javeriana Cali and Universidad de los Andes. The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Funding AgencyGrant Number
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)808
Ministerio de Ciencia Tecnología e Innovación (Minciencias)808-2018
Pontificia Universidad Javeriana CaliUNSPECIFIED
Universidad de los AndesUNSPECIFIED
Subject Keywords:Interphase overlapping; Mechanoelectric energy conversion; Polymer composite
Record Number:CaltechAUTHORS:20210209-154906241
Persistent URL:
Official Citation:Carlos Andres Perez-Lopez, Jaime Andres Perez-Taborda, Cilene Labre, Juan Manuel Marmolejo-Tejada, Andres Jaramillo-Botero, Alba Avila, ZnO/PDMS nanocomposite generator: Interphase influence in the nanocomposite electro-mechanical properties and output voltage, Energy Reports, Volume 7, 2021, Pages 896-903, ISSN 2352-4847,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107975
Deposited By: Tony Diaz
Deposited On:10 Feb 2021 00:00
Last Modified:16 Nov 2021 19:07

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