Polymer-carbon composites for temperature-dependent electrical switching applications
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United States of America Patent
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Apr 30, 2019
Grant Date -
Sep 14, 2017
app pub date -
Mar 9, 2016
filing date -
Mar 9, 2016
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Abstract
Disclosed here is a method for sensing temperature-dependent electrical switching response, comprising: exposing a polymer-carbon composite to a temperature change, wherein the polymer-carbon composite comprises (a) a semi-conductive or conductive carbon network intercalated with (b) a polymer matrix, wherein the carbon network comprises at least one covalently bonded carbon material, and wherein the polymer matrix comprises at least one polymer having a net electron withdrawing character and adapted to apply a gating effect on the conductive carbon; and detecting a change in electrical conductivity of the polymer-carbon composite of at least three orders of magnitude. Also disclosed is a smart switching device comprising the polymer-carbon composite and a switch triggerable by an increase or decrease in electrical conductivity of the polymer-carbon composite of at least three orders or magnitude.
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