Poly (p-phenyleneacetylene) light-emitting diodes

Patent · Tue Oct 04 04:00:00 EDT 1994

OSTI ID:6885539

Shinar, J; Swanson, L S; Lu, F; Ding, Y; Barton, T J; Vardeny, Z V

Acetylene containing poly(p-phenyleneacetylene) (PPA) - based light-emitting diodes (LEDs) are provided. The LEDs are fabricated by coating a hole-injecting electrode, preferably an indium tin oxide (ITO) coated glass substrate, with a PPA polymer, such as a 2,5-dibutoxy or a 2,5-dihexoxy derivative of PPA, dissolved in an organic solvent. This is then followed by evaporating a layer of material capable of injecting electrons, such as Al or Al/Ca, onto the polymer to form a base electrode. This composition is then annealed to form efficient EL diodes. 8 figs.

• DOE Contract Number: W-7405-ENG-82
• Assignee: Iowa State Univ. Research Foundation, Inc., Ames, IA (United States)
• Patent Number(s): A; US 5352906
• Application Number: PPN: US 8-011328
• OSTI ID: 6885539
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426000* -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
CHALCOGENIDES
DESIGN
FABRICATION
INDIUM COMPOUNDS
INDIUM OXIDES
LIGHT EMITTING DIODES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
POLYMERS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
TIN COMPOUNDS
TIN OXIDES