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Pregled bibliografske jedinice broj: 370466

New aspects of variable-range-hopping conductivity in doped polyaniline


Babić, Dinko; Baćani, Mirko; Novak, Mario; Kokanović, Ivan
New aspects of variable-range-hopping conductivity in doped polyaniline // Croatica chemica acta, 83 (2010), 1; 1-5 (međunarodna recenzija, članak, znanstveni)


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Naslov
New aspects of variable-range-hopping conductivity in doped polyaniline

Autori
Babić, Dinko ; Baćani, Mirko ; Novak, Mario ; Kokanović, Ivan

Izvornik
Croatica chemica acta (0011-1643) 83 (2010), 1; 1-5

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
doped polyaniline; electrical conductivity; hopping transport; Coulomb

Sažetak
Temperature (T) dependence of the electrical conductivity s of own-made polyaniline pellets, highly doped either by HCl or by dodecylbenzenesulphonic acid, is discussed. For the both dopants, a variable-range-hopping exponent 2/5 is found below * T ~ 200- 250 K. This result can be understood on the basis of a recent theory of Fogler, Teber and Shklovskii which takes into account Coulomb correlations in a three-dimensional system of chain-like conductors, predicting a power-law density of states for charge excitations around the Fermi energy. At T > T * , the s (T) curves are steeper, implying a tendency towards nearest-neighbour hopping by a reduction of the average hop length.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
119-1191458-1008 - Električna i magnetska svojstva odabranih anorganskih i organskih materijala (Kokanović, Ivan, MZOS ) ( POIROT)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Dinko Babić (autor)

Avatar Url Ivan Kokanović (autor)

Avatar Url Mario Novak (autor)

Avatar Url Mirko Baćani (autor)

Citiraj ovu publikaciju

Babić, Dinko; Baćani, Mirko; Novak, Mario; Kokanović, Ivan
New aspects of variable-range-hopping conductivity in doped polyaniline // Croatica chemica acta, 83 (2010), 1; 1-5 (međunarodna recenzija, članak, znanstveni)
Babić, D., Baćani, M., Novak, M. & Kokanović, I. (2010) New aspects of variable-range-hopping conductivity in doped polyaniline. Croatica chemica acta, 83 (1), 1-5.
@article{article, year = {2010}, pages = {1-5}, keywords = {doped polyaniline, electrical conductivity, hopping transport, Coulomb}, journal = {Croatica chemica acta}, volume = {83}, number = {1}, issn = {0011-1643}, title = {New aspects of variable-range-hopping conductivity in doped polyaniline}, keyword = {doped polyaniline, electrical conductivity, hopping transport, Coulomb} }
@article{article, year = {2010}, pages = {1-5}, keywords = {doped polyaniline, electrical conductivity, hopping transport, Coulomb}, journal = {Croatica chemica acta}, volume = {83}, number = {1}, issn = {0011-1643}, title = {New aspects of variable-range-hopping conductivity in doped polyaniline}, keyword = {doped polyaniline, electrical conductivity, hopping transport, Coulomb} }

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





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