Fabrication of poly(p-phenyleneacetylene) light-emitting diodes

Patent · Tue Aug 02 04:00:00 EDT 1994

OSTI ID:7163590

Shinar, J; Swanson, L S; Lu, F; Ding, Y

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 5334539
• Application Number: PPN: US 8-011391
• OSTI ID: 7163590
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426000* -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
ALKALINE EARTH METALS
ALUMINIUM
ANNEALING
CALCIUM
CHALCOGENIDES
DEPOSITION
ELEMENTS
EVAPORATION
FABRICATION
GLASS
HEAT TREATMENTS
INDIUM COMPOUNDS
INDIUM OXIDES
LIGHT EMITTING DIODES
METALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
POLYMERS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SURFACE COATING
TIN COMPOUNDS
TIN OXIDES