Pregled bibliografske jedinice broj: 617149
Hopping Electron Transport in Doped Polyaniline : an Experimental Verification of the Fogler- Teber-Shklovskii Model
Hopping Electron Transport in Doped Polyaniline : an Experimental Verification of the Fogler- Teber-Shklovskii Model // Synthetic metals, 172 (2013), 28-31 doi:10.1016/j.synthmet.2013.03.019 (međunarodna recenzija, članak, znanstveni)
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Naslov
Hopping Electron Transport in Doped Polyaniline : an Experimental Verification of the Fogler- Teber-Shklovskii Model
(Hopping Electron Transport in Doped Polyaniline : an Experimental Verification of the Fogler-Teber-Shklovskii Model)
Autori
Bacani, Mirko ; Novak, Mario ; Kokanović, Ivan ; Babić, Dinko
Izvornik
Synthetic metals (0379-6779) 172
(2013);
28-31
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Variable-range hopping; Nearest-neighbor hopping; Polyaniline; Electrical conductivity;
Sažetak
We present a systematic study of the temperature ($T$) dependence of the dc electrical conductivity of own-made polyaniline pellets doped over a wide range. The dopant is dodecylbenzenesulfonic acid, except for two samples that are fully doped with HCl. A crossover between low-$T$ variable-range hopping and high-$T$ nearest-neighbor hopping has been found below room temperature for most of the samples, which is atypical for conducting polymers. This allows us to construct a diagram that relates various regimes in the hopping electron transport to disorder level and $T$. Our experimentally constructed diagram closely resembles that proposed theoretically by Fogler, Teber, and Shklovskii for the hopping transport in coupled chain-like conductors in the presence of Coulomb interaction. This implies that the model is applicable to conducting polymers if Coulomb interaction is not negligible.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
119-1191458-1008 - Električna i magnetska svojstva odabranih anorganskih i organskih materijala (Kokanović, Ivan, MZOS ) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus