High-k dielectric composites of poly(2-cyanoethyl vinyl ether) and barium titanate for flexible electronics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39911688" target="_blank" >RIV/00216275:25310/17:39911688 - isvavai.cz</a>
Alternative codes found
RIV/61389013:_____/17:00475651
Result on the web
<a href="http://dx.doi.org/10.1002/APP.45236" target="_blank" >http://dx.doi.org/10.1002/APP.45236</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/APP.45236" target="_blank" >10.1002/APP.45236</a>

Result language
angličtina
Original language name
High-k dielectric composites of poly(2-cyanoethyl vinyl ether) and barium titanate for flexible electronics
Original language description
High-k dielectric composite material for electronic applications was obtained by mixing a polymer with high dielectric constant, poly(2-cyanoethyl vinyl ether) (CEPVA), and highly crystalline barium titanate (BT). Barium titanate nanoparticles of a size in the range 40-90nm were prepared by the solvothermal method. By optimizing the reaction conditions, the formation of carbonate impurities and the agglomeration of formed nanoparticles were significantly reduced compared to state-of-the-art procedures. Dielectric spectroscopy was measured in the range of 0.01Hz to 10 MHz and showed the dielectric constant to be epsilon similar to 35-40 with only 30 vol % content of BT in the composite. Extrapolating to 100% BT nanoparticle concentration and using the Lichtenecker model, the dielectric constant epsilon = 365 +/- 27 at 10 kHz was obtained. The relaxation and electrical properties were investigated in depth, and a new relaxation phenomenon was revealed. CEPVA/BT composite is considered suitable for electronic applications, in which high together with a good mechanical flexibility are required, such as organic field effect transistors.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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