Dielectric relaxation in synthetic melanin | Zendy

Osak Władysław | Zendy; Tkacz Katarzyna | Zendy; Sławiński Janusz | Zendy; Czternastek Halina | Zendy

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Dielectric relaxation in synthetic melanin

Author(s) -

Osak Władysław,

Tkacz Katarzyna,

Sławiński Janusz,

Czternastek Halina

Publication year - 1989

Publication title -

biopolymers

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.556

H-Index - 125

eISSN - 1097-0282

pISSN - 0006-3525

DOI - 10.1002/bip.360281104

Subject(s) - chemistry , dielectric , relaxation (psychology) , polarization (electrochemistry) , melanin , electrode , current (fluid) , condensed matter physics , thermodynamics , analytical chemistry (journal) , optoelectronics , organic chemistry , materials science , physics , psychology , social psychology , biochemistry

The charging and discharging currents were investigated in a synthetic melanin sample. The presence of long‐lasting dielectric relaxation was established. The steady state was reached after a long time, from 10 3 to 10 5 s, which depends both on temperature and voltage. The temperature dependence of polarization was of an activation character ( E α = 0.67 eV). The kind of electrode material did not influence the current curves.

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