Jh. Lee et al., Synthesis and characterization of a new green-emitting poly(phenylenevinylene) derivative containing alkylsilylphenyl pendant, J POL SC PC, 38(23), 2000, pp. 4185-4193
Citations number
37
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
A new type of processable green-emissive polymer containing alkylsilylpheny
l units was synthesized via Gilch polymerization. The resulting polymer was
soluble in organic solvents and was spin-cast to make a thin film. A light
-emitting diode was fabricated by the polymer being sandwiched between indi
um tin oxide and metal electrodes. A strong green emission at 524 nm was ob
served from the various device configurations made by the newly synthesized
polymer. The polymer had a strong absorption band around 427 nm that was a
ttributable to a pi-pi*: transition of the conjugated segments of the polym
er. A current-voltage-luminance curve showed typical rectifying diode chara
cteristics. The polymer had a very high molecular weight (number-average mo
lecular weight = similar to 300,000) with a polydispersity of about 3 and g
ood thermal stability up to 400 degreesC. The brightness at 13 and 17 V was
about 1000 and 5900 cd/m(2), respectively. (C) 2000 John Wiley & Sons, Inc
.