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. 13, 2004
Filed:
Jun. 23, 2000
Thomas N. Jackson, State College, PA (US);
Hagen Klauk, Erlangen, DE;
The Penn State Research Foundation, University Park, PA (US);
Abstract
A light emitting device with improved carrier injection. The device has a layer of organic light emitting material and a layer of organic semiconductor material that are interposed between first and second contact layers. A carrier transport layer,may optionally be included between the semiconductor and light emitting layers. When used as a diode, the first and second contacts are functionally the anode and cathode. The device can also be a field effect transistor device by adding a gate contact and a gate dielectric. The first and second contacts then additionally have the function of source and drain, depending on whether the organic semiconductor material is a p-type or an n-type. Preferably, the organic semiconductor is formed with pentacene.