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Double layer humidity sensor based on phthalocyanine derivatives
Rakušan, J. ; Karásková, M. ; Hamáček, A. ; Řeboun, J. ; Kubáč, L. ; Černý, J. ; Rais, David ; Nešpůrek, Stanislav
New type of humidity sensors based on double layer structure consisting of hydrophilic and hydrophobic phthalocyanine derivatives is presented. The sensor shows high sensitivity in the range from 20 to 90 % relative humidity (RH), good long-time stability and fast response. The impedance change vs. RH is quasi-linear in semilogarithmic plot and fully reversible.

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