MIT

Blue electroluminescent devices based on soluble poly(p-pyridine).

Title

Blue electroluminescent devices based on soluble poly(p-pyridine).

Publication Type
Journal Article
Year of Publication
1995
Journal
Journal of Applied Physics
Volume
78
Pagination
4264–4266
ISSN
0021-8979
Abstract
We have fabricated unilayer electroluminescent devices from sol. poly(p-pyridine) (PPy). The soly. of PPy in weak acids allows direct spin casting of the polymer films. The electroluminescence spectrum peaks at 2.5 eV (497 nm) corresponding to white light weighted towards the blue end of the spectrum. The photoluminescence spectrum peaks at 2.35 eV (530 nm). The operating voltages of the devices ranged from 4 to 12 V with current densities of 6 to 8 mA/mm2. We compare our devices with similar blue emitting devices based on poly(p-phenylene). [on SciFinder(R)]