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Self‐Assembly and Charge‐Transport Properties of a Polythiophene–Fullerene Triblock Copolymer
Author(s) -
Dante Mark,
Yang Changduk,
Walker Bright,
Wudl Fred,
Nguyen ThucQuyen
Publication year - 2010
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/adma.200902696
Subject(s) - materials science , copolymer , polythiophene , fullerene , polymer chemistry , nanofiber , conductive polymer , nanotechnology , polymer , chemical engineering , composite material , organic chemistry , engineering , chemistry
A rod–coil triblock copolymer consisting of a poly(3‐hexylthiophene) (P3HT) rigid block, a styrene coil block, and a coil block with fullerene pendant group has been synthesized (see figure). Nanofibers in films reach 250 nm in length and 10.7 nm in width. Photo‐ and dark‐current imaging by conducting atomic force microscopy reveals that the fibers are highly conductive. The electron and hole mobilities are comparable with a P3HT:fullerene‐derivative blend.