Explanation of the high conductivity of HCl protonated polyaniline films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10436035" target="_blank" >RIV/00216208:11320/21:10436035 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=d_mnlcT_el" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=d_mnlcT_el</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matchemphys.2020.124153" target="_blank" >10.1016/j.matchemphys.2020.124153</a>
Alternative languages
Result language
angličtina
Original language name
Explanation of the high conductivity of HCl protonated polyaniline films
Original language description
A very high conductivity of polyaniline (PANI) salts can be achieved but different authors provide different explanations of the conduction mechanism. To clarify the problem, we studied the contribution of each type of charge to the total conductivity. The conductivity (1.9-3.5) S cm(-1) was found using ohmic gold contacts on a PANI sample applied to glass. In contrast, the conductivity of 8.0 x 10(-7) S cm(-1) was determined from the voltampere characteristic measured on the Au/PANI/Si/In structure in a sandwich configuration. The impedance spectra show that in this structure only polarons and holes participate in the charge transfer while ions only cause sample polarization. Conductivity of 3 x 10-7 S cm(-1) caused by ions was determined from the dielectric spectra. Since the sum of all contributions is very low compared to the measured total conductivity, a new mechanism of conductivity is proposed that explains the importance of hydrogen and chlorine molecules for charge transfer.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Chemistry and Physics
ISSN
0254-0584
e-ISSN
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Volume of the periodical
260
Issue of the periodical within the volume
Únor
Country of publishing house
CH - SWITZERLAND
Number of pages
8
Pages from-to
124153
UT code for WoS article
000620391600006
EID of the result in the Scopus database
2-s2.0-85097651574