Fabrication of poly(p-phenyleneacetylene) light-emitting diodes
Patent
·
OSTI ID:7163590
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):
- US 5334539; A
- Application Number:
- PPN: US 8-011391
- OSTI ID:
- 7163590
- Resource Relation:
- Patent File Date: 29 Jan 1993
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
LIGHT EMITTING DIODES
FABRICATION
ALUMINIUM
ANNEALING
CALCIUM
EVAPORATION
GLASS
INDIUM OXIDES
POLYMERS
SURFACE COATING
TIN OXIDES
ALKALINE EARTH METALS
CHALCOGENIDES
DEPOSITION
ELEMENTS
HEAT TREATMENTS
INDIUM COMPOUNDS
METALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
TIN COMPOUNDS
426000* - Engineering- Components
Electron Devices & Circuits- (1990-)
LIGHT EMITTING DIODES
FABRICATION
ALUMINIUM
ANNEALING
CALCIUM
EVAPORATION
GLASS
INDIUM OXIDES
POLYMERS
SURFACE COATING
TIN OXIDES
ALKALINE EARTH METALS
CHALCOGENIDES
DEPOSITION
ELEMENTS
HEAT TREATMENTS
INDIUM COMPOUNDS
METALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
TIN COMPOUNDS
426000* - Engineering- Components
Electron Devices & Circuits- (1990-)