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Doping in Solution as an Order‐Inducing Tool Prior to Film Formation of Regio‐Irregular Polyalkylthiophenes
Author(s) -
Apperloo J. J.,
Janssen R. A. J.,
Nielsen M. M.,
Bechgaard K.
Publication year - 2000
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200011)12:21<1594::aid-adma1594>3.0.co;2-7
Subject(s) - oxidizing agent , materials science , polymer , doping , order (exchange) , supramolecular chemistry , chemical engineering , chemical physics , nanotechnology , optoelectronics , crystallography , composite material , organic chemistry , crystal structure , chemistry , finance , engineering , economics
Favorable alignment of regio‐irregular poly(3‐alkylthiophene)s in a film can be attained, despite the fact that these polymers lack an intrinsic tendency to form well‐ordered supramolecular aggregates. As reported here, alignment can be achieved simply by oxidizing the polymer in solution prior to film formation. A delicate balance between the degree of order and the level of oxidation in solution is observed. These results point to a way to improve charge transport efficiency, which is influenced by intra‐ and interchain order in the polymer.