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Enhancing Solid‐State Emission from Conjugated Polymers via Self‐Forming Host–Guest Systems
Author(s) -
Vamvounis G.,
Holdcroft S.
Publication year - 2004
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.200306375
Subject(s) - conjugated system , thiophene , materials science , fluorene , polymer , luminescence , solid state , photochemistry , nanotechnology , polymer chemistry , optoelectronics , organic chemistry , chemistry , composite material
A novel host–guest system leading to enhanced luminescence (see Figure) is investigated using a self‐forming, solid‐state solution of a conjugated polymer. Poly(fluorene‐ alt ‐thiophene)s are synthesized with varying ratios of 2,5‐ and 3,4‐thiophene linkages. Small quantities of 2,5‐linkages give rise to systems in which a matrix of 3,4‐thiophene‐linked conjugated polymer transfers electronic excitation energy to isolated, emitting 2,5‐thiophene‐linked conjugated segments.