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

by: J Su, QM Zhang, RY Ting

Applied Physics Letters, Vol. 71, No. 3. (1997), pp. 386-388.

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Abstract

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. ©1997 American Institute of Physics.

@article{citeulike:1250705, abstract = {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. \©1997 American Institute of Physics.}, author = {Su, J. and Zhang, Q. M. and Ting, R. Y. }, citeulike-article-id = {1250705}, doi = {10.1063/1.119545}, journal = {Applied Physics Letters}, keywords = {eap, electrostriction}, number = {3}, pages = {386--388}, posted-at = {2007-04-25 16:57:25}, priority = {2}, publisher = {AIP}, title = {Space-charge-enhanced electromechanical response in thin-film polyurethane elastomers}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=APPLAB000071000003000386000001\&idtype=cvips\&gifs=yes}, volume = {71}, year = {1997} }

RIS record

TY - JOUR ID - citeulike:1250705 L3 - citeulike-article-id:1250705 TI - Space-charge-enhanced electromechanical response in thin-film polyurethane elastomers JF - Applied Physics Letters VL - 71 IS - 3 SP - 386 EP - 388 PB - AIP N2 - 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. ©1997 American Institute of Physics. KW - eap KW - electrostriction AU - Su, J AU - Zhang, QM AU - Ting, RY PY - 1997/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=APPLAB000071000003000386000001&idtype=cvips&gifs=yes ER -

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