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Transport and magnetic properties of conducting polyaniline doped with BX3 (X=F, Cl, and Br)

Chaudhuri, D and Kumar, Ashwani and Nirmala, R and Sarma, DD and Garcia-Hernandez, M and Chandra, LSS and Ganesan, V (2006) Transport and magnetic properties of conducting polyaniline doped with BX3 (X=F, Cl, and Br). In: Physical Review B, 73 (7). 075205-1.

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We report transport and magnetic properties of a different class of highly conducting polyaniline, doped with boron trihalides BX3 (X=F, Cl, and Br). In order to understand the transport mechanism we analyze the temperature dependence of resistivity of a large number of samples, made by pelletizing doped polyaniline powder and by doping films of polyaniline. We find that the charge transport in this class of conducting polyaniline is driven by the charging-energy limited transport of charge carriers, in contrast to the quasi-one-dimensional variable range hopping conduction prevalent in conventional proton-doped polyaniline samples. Magnetic susceptibility provides further insight into the unusually high intrinsic conductivity behavior.

Item Type: Journal Article
Publication: Physical Review B
Publisher: American Physical Society
Additional Information: Copyright of this article belongs to American Physical Society.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 16 Sep 2010 06:57
Last Modified: 19 Sep 2010 06:15
URI: http://eprints.iisc.ac.in/id/eprint/31760

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