DC Transport Studies of BBL, a Ladder Type Polymer
Abstract
The dc electrical conductivity of the ladder type polymer benzimidazobenzophenanthroline (BBL) increased dramatically by more than six orders of magnitude when heated to 600 K. The evolution of this significant increase in conductivity was studied systematically. The conductivity prior to exposure to the high temperature was compared to post-heated samples and analyzed in terms of activated and hopping models. The thermally induced electrical conductivity was studied for different geometries, and significant anisotropic features were observed. The variation in thermally induced conductivity with respect to the ambient conditions was also correlated with the morphology. The results revealed the contribution of surface processes in the electronic transport.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 1998
- Bibcode:
- 1998APS..MAR.M2410N