Study of Synthesis and Temperature Dependence of DC Conductivity in the Low Temperature Range for Poly(N-Methylaniline)

Kapil, Atul; Chand, Subhash

doi:10.1007/s11664-011-1526-z

Cited by 1 publication

(1 citation statement)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on this, it can be argued that the 3D variable range hopping mechanism as envisaged by Mott is prevailing in the present nanocomposites. This deduction of result is in agreement with the reported result of reference [29,31,32]. Considering 3D VRH conduction mechanism to be operated at low temperatures, N(EF) values determined and are tabulated in Table 2.…”

Section: Conductivitysupporting

confidence: 89%

Studies on Conduction Mechanism, Magnetization and Electrochemical Properties of Polythiophene-Cobalt Nanocomposites

Chandraprabha¹,

Sankarappa²,

Lokhande³

et al. 2018

JNST

View full text Add to dashboard Cite

Polythiophene (PTh) was prepared by chemical oxidation and cobalt nanoparticles (Co-nps) by modified polyol process. The nanocomposites were prepared by mixing mechanically the PTh and Co-nps in the weight percentage, PTh100-xCox, x = 10, 20, 30, 40 and 50. XRD of these nanocomposites showed amorphous nature. DC conductivity variation with temperature in the range from 303 K to 473 K indicated semiconducting behavior. Conduction mechanism was found to be small polaron hopping at high temperature and 3D variable range hopping at low temperatures. Conductivity and activation energy values points out that addition of Co-nps to the PTh induces electrically insulating effect. The SQUID magnetometer measurements at 10 K and 300 K showed perfect ferromagnetic nature and magnetically softness of the composites. Cyclic voltammetry study has been carried out on all the composites and in that a composite having 30% of Co-nps measured Specific Capacitance (SC) value as high as 583.20 F/g. This can be the best candidate for capacitor applications. This is for the first time that PTh-Co nanocomposites have been thoroughly probed for structure, conduction mechanism, magnetization and supercapacitor applications.

show abstract

Section: Conductivitysupporting

confidence: 89%