Color variable bipolar/ac light-emitting devices based on conjugated polymers

TitleColor variable bipolar/ac light-emitting devices based on conjugated polymers
Publication TypeJournal Article
Year of Publication1997
AuthorsWang, YZ, Gebler, DD, Fu, DK, Swager, TM, Epstein, AJ
JournalApplied Physics Letters
Volume70
Pagination3215
ISSN00036951
Keywordscolor variable LED conjugated polymer
Abstract

The fabrication is reported of color variable bipolar/a.c. LEDs based on conjugated polymers. The devices consist of blends of pyridine-phenylene and thiophene-phenylene based copolymers sandwiched between the emeraldine base form and the sulfonated form of polyaniline. ITO and Al are used as electrodes. The devices operate under either polarity of driving voltage with different colors of light being emitted, red under forward bias, and green under reverse bias. The relative fast time response allows the rapid switching of colors and a.c. operation. [on SciFinder(R)]

URLhttp://link.aip.org/link/APPLAB/v70/i24/p3215/s1&Agg=doi
DOI10.1063/1.119129