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Non‐dispersive Hole Transport in a Soluble Poly( p ‐phenylene vinylene)
Author(s) -
Inigo A. R.,
Tan C. H.,
Fann W.,
Huang Y.S.,
Perng G.Y.,
Chen S.A.
Publication year - 2001
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(200104)13:7<504::aid-adma504>3.0.co;2-o
Subject(s) - chlorobenzene , materials science , phenylene , toluene , conjugated system , solvent , poly(p phenylene vinylene) , xylene , polymer , polymer chemistry , chemical engineering , photochemistry , organic chemistry , composite material , chemistry , catalysis , engineering
Understanding the relationship between charge transport and morphology is critical for improving the efficiency of conjugated polymer–based devices. Time of flight measurements are used here to examine hole transport in films of poly(2‐methoxy‐5‐(2′‐ethylhexoxy)‐1,4,‐phenylene vinylene) (MEH‐PPV). Films cast from three different solvents, toluene, p ‐xylene, and chlorobenzene, are investigated. It is shown that the MEH‐PPV films can exhibit either non‐dispersive or dispersive transport, depending on the solvent used.