scholarly journals Conduction Mechanism in Electrically Conducting Polymers

2018 ◽  
Vol 14 (4) ◽  
Author(s):  
Daniel Gochnauer ◽  
T Gilani
Keyword(s):  
Activation Energy ◽  
Conducting Polymers ◽  
Fermi Level ◽  
Temperature Dependence ◽  
Conduction Mechanism ◽  
Localized States ◽  
Electrically Conducting ◽  
Temperature Dependence Of Conductivity ◽  
Electrically Conducting Polymers ◽  
Hopping Model

The conduction mechanism in conducting polymers is reviewed and experimental results of temperature dependence of electrical conductivity of PF6 doped polypyrrole in temperature range of 77 to 300 K are discussed. The room-temperature conductivitywas experimentally determined to be 73 ± 3.4 S/m and temperature dependence follows the Mott’s variable range hopping model. The average hopping distance at 298 K was (6.75 ± 0.97) ×10-8 cm. The coefficient of decay of the localized states, the density states at the Fermi level, and the hopping activation energy were calculated to be (3.5±0.51) ×107 cm-1, (1.92 ± 0.83) ×1022 cm-3 eV-1, and 0.040 ± 0.001 eV respectively. KEYWORDS: Electrically Conducting Polymers; Doped Polypyrrole; Temperature Dependence of Conductivity; Hopping Activation Energy; Density of State at Fermi level

Modification of Lignin to Electrically Conducting Polymers

1989 ◽  
pp. 219-227 ◽  
Author(s):  
Tuula A. Kuusela ◽  
J. Johan Lindberg ◽  
Kiran Levon ◽  
J. E. Österholm
Keyword(s):  
Conducting Polymers ◽  
Electrically Conducting ◽  
Electrically Conducting Polymers

Biomedical Perspectives of Polyaniline Based Biosensors

2013 ◽  
Vol 810 ◽  
pp. 173-216 ◽  
Author(s):  
Amir Al-Ahmed ◽  
Haitham M. Bahaidarah ◽  
Mohammad A. Jafar Mazumder
Keyword(s):  
Electron Transfer ◽  
Conducting Polymers ◽  
Biomedical Applications ◽  
Catalytic Properties ◽  
Direct Electron Transfer ◽  
Review Article ◽  
Direct Communication ◽  
Electrically Conducting ◽  
Electrically Conducting Polymers ◽  
Significant Attention

Electrically conducting polymers (ECPs) are finding applications in various fields of science owing to their fascinating characteristic properties such as binding molecules, tuning their properties, direct communication to produce a range of analytical signals and new analytical applications. Polyaniline (PANI) is one such ECP that has been extensively used and investigated over the last decade for direct electron transfer leading towards fabrication of mediator-less biosensors. In this review article, significant attention has been paid to the various polymerization techniques of polyaniline as a transducer material, and their use in enzymes/biomolecules immobilization methods to study their bio-catalytic properties as a biosensor for potential biomedical applications.

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