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:
Aug. 14, 2012
Filed:
Jun. 23, 2010
Lionel C. Kimerling, Concord, MA (US);
Jifeng Liu, Cambridge, MA (US);
Jurgen Michel, Arlington, MA (US);
Lionel C. Kimerling, Concord, MA (US);
Jifeng Liu, Cambridge, MA (US);
Jurgen Michel, Arlington, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A light emitting device is provided that includes at least one first semiconductor material layers and at least one second semiconductor material layers. At least one near-direct band gap material layers are positioned between the at least one first semiconductor layers and the at least one second semiconductor material layers. The at least one first semiconductor layers and the at least one second material layers have a larger band gap than the at least one near-direct band gap material layers. The at least one near-direct band gap material layers have an energy difference between the direct and indirect band gaps of less than 0.5 eV.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile