Color tunability in non-doped single-layer PLEDs from a carbazole-based electrolumine scent polymer

A conjugated polymer with a carbazole moiety, poly(3,6-divinylene-N-octyl-carbazole-p-phenylene), was synthesized by Wittig reaction. The polymer can be dissolved in common organic solvents such as THF, chloroform, etc. Using this polymer as an active layer, single-layer non-doped PLEDs with different thicknesses were fabricated by a spin-coating approach. The results suggested that electroluminescence spectra are changed with the film thickness of the polymer emitter. Fortunately, CIE 1931 coordinate values are moved to the white-light region only by changing the film thickness. (C) Copyright 2008 John Wiley & Sons, Ltd.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000258649200020&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Polymer ScienceSCI(E)EI4ARTICLE81084-10911