IMPROVED PHOTOLUMINESCENCE EFFICIENCY OF FILMS FROM CONJUGATED POLYMERS

Authors
ANDERSSON MR BERGGREN M OLINGA T HJERTBERG T INGANAS O WENNERSTROM O
Citation
Mr. Andersson et al., IMPROVED PHOTOLUMINESCENCE EFFICIENCY OF FILMS FROM CONJUGATED POLYMERS, Synthetic metals, 85(1-3), 1997, pp. 1383-1384
Citations number
8
Categorie Soggetti
Physics, Condensed Matter","Material Science","Polymer Sciences
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
85
Issue
1-3
Year of publication
1997
Pages
1383 - 1384
Database
ISI
SICI code
0379-6779(1997)85:1-3<1383:IPEOFF>2.0.ZU;2-O
Abstract
We have demonstrated two general ways to increase the photoluminescenc e efficiency of films from conjugated polymers. One is to disperse the conjugated polymer on a molecular level by using attractive forces be tween the conjugated polymer and the matrix. The other method is to su bstitute the conjugated polymer with side chains which separates the c onjugated backbones. Using this idea a new poly(thiophene) with a phot oluminescence efficiency of 16% in films has been prepared. LEDs from this polymer exhibit an external efficiency of 0.1% for single layer a nd 0.7% for double layer diodes.