真黑素前体2-羧基-5,6-二羟基吲哚（DHICA）作为三元（PEDOT:PSS/真黑素）薄膜中用于提高导电性的掺杂因子。

Eumelanin Precursor 2-Carboxy-5,6-Dihydroxyindole (DHICA) as Doping Factor in Ternary (PEDOT:PSS/Eumelanin) Thin Films for Conductivity Enhancement.

作者信息

Migliaccio Ludovico, Gesuele Felice, Manini Paola, Maglione Maria Grazia, Tassini Paolo, Pezzella Alessandro

机构信息

Department of Chemical Sciences, University of Naples "Federico II", 80126 Naples, Italy.

Department of Physics "Ettore Pancini", University of Naples "Federico II", 80126 Naples, Italy.

出版信息

Materials (Basel). 2020 May 2;13(9):2108. doi: 10.3390/ma13092108.

The integration of the pristine not-doped commercial poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) PH1000 with eumelanin, the brown to black kind of melanin pigment, was achieved by dissolving the melanogenic precursors 2-carboxy-5,6-dihydroxyindole (DHICA) in the PH1000 suspension. Solid state oxidative polymerization of the catecholic indole allowed obtaining the ternary blend PEDOT:PSS/eumelanin. The introduction of DHICA into PH1000 produced a noticeable increase in the conductivity of PEDOT thin films akin to that produced by dimethyl sulfoxide (DMSO) treatment, opening up novel strategies for the simultaneous integration of eumelanin polymer and conductivity enhancement of PEDOT containing coatings, as well as the long term goal of replacing PSS by DHICA eumelanin for PEDOT pairing.