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Effect of solvent on Meyer-Neldel rule for conducting polyaniline thin film

S. A. MOIZ1,* , S. M. IMRAN2, A. M. NAHHAS1, K. S. KARIMOV3, HEE-TAIK KIM2,*

Affiliation

  1. Department of Electrical Engineering, College of Engineering and Islamic Architecture, Umm Al-Qura University, Makkah, Saudi Arabia
  2. Department of Fusion Chemical Engineering, Hanyang University, Ansan 426-791, South Korea
  3. Faculty of Electrical Engineering, Ghulam Ishaq Khan Institute (GIKI), Topi, Swabi, Pakistan

Abstract

The effects of solvent on electrical properties of polyaniline emeraldine base (PANIEB) are investigated as a function of temperatures. It is observed that PANIEB follows Arrhenius type of conductivity, while Arrhenius pre-exponential factor and activation-energy are found interrelated according to the Meyer-Neldel rule (MNR). The effects of solvent on the activation energy and isokinetic temperature (derived from MNR) are further examined according to the generalized adiabatic polaron hopping mechanism. It is observed that the solvent provides higher Isokinetic temperature and lower activation energy due to the enhancement of solvent-induced crystallization, electronic energy transfer rate between molecular chains, and softening of molecular vibration in PANIEB thin film..

Keywords

Organic semiconductor, Polyaniline emeraldine base, Meyer-Neldel rule (MNR), Isopropyl-Alcohol (IPA), Activation energy.

Submitted at: Feb. 16, 2013
Accepted at: Nov. 13, 2014

Citation

S. A. MOIZ, S. M. IMRAN, A. M. NAHHAS, K. S. KARIMOV, HEE-TAIK KIM, Effect of solvent on Meyer-Neldel rule for conducting polyaniline thin film, Journal of Optoelectronics and Advanced Materials Vol. 16, Iss. 11-12, pp. 1405-1410 (2014)