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Applied Physics Letters / Volume 51 / Issue 12
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Appl. Phys. Lett. 51, 913 (1987); http://dx.doi.org/10.1063/1.98799 (3 pages)

Organic electroluminescent diodes

C. W. Tang and S. A. VanSlyke

Research Laboratories, Corporate Research Group, Eastman Kodak Company, Rochester, New York 14650

(Received 12 May 1987; accepted 20 July 1987)

A novel electroluminescent device is constructed using organic materials as the emitting elements. The diode has a double‐layer structure of organic thin films, prepared by vapor deposition. Efficient injection of holes and electrons is provided from an indium‐tin‐oxide anode and an alloyed Mg:Ag cathode. Electron‐hole recombination and green electroluminescent emission are confined near the organic interface region. High external quantum efficiency (1% photon/electron), luminous efficiency (1.5 lm/W), and brightness (>1000 cd/m2) are achievable at a driving voltage below 10 V.

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KEYWORDS and PACS

Keywords

ELECTROLUMINESCENCE, ORGANIC COMPOUNDS, ORGANIC SEMICONDUCTORS, THIN FILMS, VAPOR DEPOSITED COATINGS, QUANTUM EFFICIENCY, EFFICIENCY, ANODES, RECOMBINATION, DIODES, ELECTRON−HOLE DROPS, FABRICATION, ITO LAYERS, CATHODES, SILVER, MAGNESIUM

PACS

  • 85.60.Jb

    Light-emitting devices

  • 72.20.Jv

    Charge carriers: generation, recombination, lifetime, and trapping

  • 73.61.Cw

    Elemental semiconductors

  • 73.61.Jc

    Amorphous semiconductors; glasses

  • 73.61.Le

    Other inorganic semiconductors

  • 78.60.Fi

    Electroluminescence

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.98799

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

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