Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Patent
1992-07-30
1994-03-15
Larkins, William D.
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
257 97, 257103, H01L 2928, H01L 3300
Patent
active
052948102
ABSTRACT:
In an organic electroluminescent device including first and second electrodes opposite to each other and a multi-layered body which is sandwiched between these electrodes and consists of a plurality of organic films including a light-emitting layer, a material for each organic film and electrode is selected so that electrons and holes are simultaneously and respectively injected from the first and second electrodes in the multi-layered body when a forward biasing voltage is applied, a large amount of injected electrons and holes are accumulated at the multi-layered body, and these electrons and holes are subjected to radiative recombination at a predetermined threshold voltage.
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Applied Physics Letters, vol. 56, Feb. 1990, pp. 799-801, New York, US; C. Adachi et al.: "Blue light-emitting organic electroluminescent devices".
Journal of Applied Physics, vol. 51, Aug, 1980, pp. 4555-4557, New York, US; T. Doi et al.: "Bright dc electroluminescence in ZnSe-ZnS:Mn thin films".
Appl. Phys. Lett., vol. 51, p. 913; C. W. Tang and S. A. Vanslyke; Sep. 21, 1987.
Jap. J. Appl. Phys., vol. 27, L269; C. Adachi, S. Tokito, T. Tsutsui; and S. Saito; Feb. 1988.
Egusa Syun
Gemma Nobuhiro
Kabushiki Kaisha Toshiba
Larkins William D.
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