The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 1992
Filed:
Mar. 13, 1991
Syun Egusa, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A semiconductor luminescent device having a structure in which an organic layer is sandwiched between first and second electrodes and having an organic/inorganic junction in which at least the first electrode of the first and second electrodes consists of an n-type inorganic semiconductor. A junction between the first electrode and the organic layer forms a blocking contact against electron injection from the first electrode into the organic layer and hole injection from the organic layer into the first electrode. A junction between the second electrode and the organic layer facilitates injection of holes from the second electrode into the organic layer. An electric double layer is formed in the junction portion between the organic layer and the first electrode when a voltage positive with respect to the first electrode is applied to the second electrode, thereby causing tunnel injection of carriers between the first electrode and the organic layer to obtain recombination luminescence in at least one of the first electrode and the organic layer.