DC transport studies of poly(benzimidazobenzophenanthroline) a ladder-type polymer

Narayan, K. S. ; Alagiriswamy, A. A. ; Spry, R. J. (1999) DC transport studies of poly(benzimidazobenzophenanthroline) a ladder-type polymer Physical Review B: Condensed Matter and Materials Physics, 59 (15). pp. 10054-10058. ISSN 1098-0121

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Official URL: http://prb.aps.org/abstract/PRB/v59/i15/p10054_1

Related URL: http://dx.doi.org/10.1103/PhysRevB.59.10054


The room- temperature electrical conductivity of poly(benzimidazobenzophenanthroline) dramatically increases when heated to 600 K by more than six orders in magnitude. The evolution of this significant increase in conductivity is studied closely. The conductivity prior to exposure to the high temperature is compared with postheated samples and analyzed in terms of activated and hopping models. The thermally induced electrical conductivity is studied for different geometries and significant anisotropic features are observed. The variation in the thermally induced conductivity with respect to the ambient conditions is also correlated with the structure. The results reveal contribution of surface processes in the electronic transport.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:60038
Deposited On:08 Sep 2011 10:04
Last Modified:08 Sep 2011 10:04

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