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:
Mar. 05, 2013
Filed:
Nov. 29, 2011
Yong Qiu, Beijing, CN;
Deqiang Zhang, Beijing, CN;
Yang LI, Beijing, CN;
Guohui Zhang, Beijing, CN;
Kongwu Wu, Beijing, CN;
Lian Duan, Beijing, CN;
Yudi Gao, Beijing, CN;
Yong Qiu, Beijing, CN;
Deqiang Zhang, Beijing, CN;
Yang Li, Beijing, CN;
Guohui Zhang, Beijing, CN;
Kongwu Wu, Beijing, CN;
Lian Duan, Beijing, CN;
Yudi Gao, Beijing, CN;
Tsinghua University, Beijing, CN;
Beijing Visionox Technology Co., Ltd., Beijing, CN;
Kunshan Visionox Display Co., Ltd., Kunshan, CN;
Abstract
The present invention relates to a method of preparing a Li film, wherein said Li film is fabricated by directly decomposing a compound of Li under a vacuum evaporation condition, and said compound is LiN. Said Li film is fabricated by decomposing LiN at an evaporation rate of 0.01-0.25 nm/s and an evaporation temperature of 300-450° C., and said Li film has a thickness of 0.3-5.0 nm. The present invention also relates to an organic light emitting device comprising said Li film as an electron injection layer and a method for the preparation thereof, and an organic light emitting device including an electron injection layer comprising an electron transport material doped with Li obtained by decomposing LiN under a vacuum evaporation condition, and a method for the preparation thereof.