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          Institute: MPI für Polymerforschung     Collection: MPI Polymerforschung     Display Documents



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ID: 28463.0, MPI für Polymerforschung / MPI Polymerforschung
Correlation between molecular structure, microscopic morphology, and optical properties of poly (tetraalkylindenofluorene)s
Authors:Grimsdale, Andrew C.; Leclere, P.; Lazzaroni, R.; MacKenzie, J. D.; Murphy, C.; Setayesh, S.; Silva, C.; Friend, R. H.; Müllen, Klaus
Language:English
Date of Publication (YYYY-MM-DD):2002-10
Title of Journal:Advanced Functional Materials
Journal Abbrev.:Adv. Funct. Mater.
Volume:12
Issue / Number:10
Start Page:729
End Page:733
Review Status:No review
Audience:Not Specified
Abstract / Description:The emission properties of polyindenofluorenes with various proportions of straight- and branched-chain alkyl substituents have been compared. The polymer with straight octyl substituents shows green emission due to formation of aggregates, while the polymer with branched 2-ethylhexyl substituents shows blue emission. Studies of the film morphology show the presence of ordered structures due to pi- stacking of the polymer chains for the octyl-substituted polymer, whereas the polymer with branched side-chains shows no such order. Copolymers show intermediate behavior. A clear correlation is established between the degree of straight-chain alkyl substitution, the formation of ordered structures in the films, and the amount of long wavelength emission in the solid- state spectra.
Comment of the Author/Creator:Date: 2002, OCT
External Publication Status:published
Document Type:Article
Affiliations:MPI für Polymerforschung
External Affiliations:Univ Mons, Ctr Rech Elect & Photon Mol, Serv Chim Mat Nouveaux, B-7000 Mons, Belgium; Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England; CDT Ltd, Cambridge CB3 0HJ, England
Identifiers:ISI:000179020000012 [ID No:1]
ISSN:1616-301X [ID No:2]
LOCALID:P-02-147
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