Naslov
APPLICATIONS OF MOTT'S THEORY OF CONDUCTIVITY ON DOPED POLYANILINE

Autori
Gazdić, Izet ; Babić, Dinko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
10th International Research/Expert Conference &#8221 ; Trends in the Development of Machinery and Associated Technology&#8221 ; TMT 2006 / - Barcelona : Lloret de Mar, 2006, 1235-1238

Skup
10th International Research/Expert Conference &#8221 ; Trends in the Development of Machinery and Associated Technology&#8221 ; TMT 2006

Mjesto i datum
Barcelona, Španjolska; Lloret de Mar, Španjolska, 11-15.09

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
polyaniline; resistance; electrical conductivity; activation energies; Mott's theory

Sažetak
Polyaniline is a polymer which undoped state is an insulator. Doping of polyaniline gives a conductive state and becomes a very good conductor of electric current. Since the mechanisms of conductivity in polyaniline are still not clear, this paper attempts to give a specific contribution in explaining the theories of conductivity of the material. It has been shown that conductivity of polyaniline depends on the concentration of doping and temperature. With the decrease in the amount of the doping, the conductivity of polyaniline reduces and faster converges to zero. The "hopping temperatures" and activation energies were determined experimentally for all the samples. The resistance of the samples were measured within the temperature interval of 10 K to 290K, during cooling and heating. The temperature interval of 150 K to 290 K. showed the dependence of resistance as: lnR=CT_- 1/2, which corresponds to the quasi-one-dimensional (Q1d) Mott's theory of conductivity without the Coulomb electron-electron interaction .

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA