Self-Assembled Core-Shell Polymer Dielectric Prepared by Solution Casting Process
2009 (English)In: Integrated Ferroelectrics, ISSN 1058-4587, E-ISSN 1607-8489, Vol. 113, 1-8 p.Article in journal (Refereed) Published
Giant permittivity at 1 MHz, which slightly changes with temperatures, is observed in a polymer composite. The dielectric spectroscopy demonstrates that the samples are electrically heterogeneous. The microstructure observation and the ingredient analysis evidence they self assemble the conducting cores surrounded by the insulating shells. The giant-dielectric phenomenon is therefore attributed to the percolation effect. The electrically heterogeneous microstructure with effective permittivity values about 10 000 can be fabricated by a simple solution casting process in air. The composite is an attractive option to the currently used printing dielectric and the future flexible electronics.
Place, publisher, year, edition, pages
Taylor andamp; Francis: STM, Behavioural Science and Public Health Titles , 2009. Vol. 113, 1-8 p.
High dielectric; Polymer composite
Composite Science and Engineering
IdentifiersURN: urn:nbn:se:liu:diva-115701DOI: 10.1080/10584587.2009.490167ISI: 000279396200002OAI: oai:DiVA.org:liu-115701DiVA: diva2:796096
21st International Symposium on Integrated Ferroelectrics and Functionalities