Space-charge-enhanced electromechanical response in thin-film polyurethane elastomers

Autor:	R. Y. Ting, Qiming Zhang, Jinzhan Su
Rok vydání:	1997
Předmět:	Materials science Physics and Astronomy (miscellaneous) business.industry Elastomer Space charge Polyurethane elastomer chemistry.chemical_compound chemistry Electric field Current (fluid) Composite material Thin film business Electromechanics Polyurethane
Zdroj:	Applied Physics Letters. 71:386-388
ISSN:	1077-3118 0003-6951
Popis:	We show that the large electrical-field-induced strain response observed in certain polyurethane elastomers is a thin-film effect. Based on the frequency dispersion of the strain response in samples with different thicknesses and the thermally stimulated discharge current on samples with different processing conditions, we suggest that the charge injection, an interface effect, which results in a nonuniform space-charge distribution and, hence, a nonuniform electric-field distribution across the sample thickness, is responsible for the enhanced electromechanical response in thin polyurethane samples.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9d2829873b4bdee6c2e12cd67b5cf31e https://doi.org/10.1063/1.119545 Zobrazit plný text záznamu