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New Base-Dopable Well-Defined Poly-2,7-Fluorene Derivatives

Published online by Cambridge University Press:  10 February 2011

M. Ranger  and
M. Leclerc
M. Ranger
Affiliation:
Université de Montréal, Département de Chimie, C.P. 6128, Succ. Centre-Ville, Montréal (Qc), Canada, H3C 3J7, [email protected]
M. Leclerc
Affiliation:
Université de Montréal, Département de Chimie, C.P. 6128, Succ. Centre-Ville, Montréal (Qc), Canada, H3C 3J7, [email protected]
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Abstract

Well-defined poly(2,7-fluorene) derivatives have been prepared through palladium-catalyzed couplings; using this versatile synthetic method, processable polyfluorenes have been obtained in good yields. In solution, these yellow polymers exhibit blue emission around 410 nm with high quantum yields. Moreover, novel acidic polyfluorene derivatives have been synthesized (e.g. poly(2,7'-(pentyl 9,9-dioctyl-7,2'-bifluorene-9'-carbonyl))) which show, upon base-doping, electrical conductivities of 10−2 − 10−3 S/cm. This new doping method for conjugated polymers could open the way to the preparation of air-stable electron-injecting electrodes. Polyfluorene derivatives show their potential to play a double function in the fabrication of LEDs, i.e. as ntype electrode and luminescent polymeric materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 488: Symposium J – Electrical, Optical & Magnetic Properties of Organic IV , 1997 , 835
Copyright
Copyright © Materials Research Society 1998

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