Invention Grant
- Patent Title: Methods of preparing a Li film and methods of preparing an organic light emitting device
- Patent Title (中): 制备Li膜的方法和制备有机发光器件的方法
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Application No.: US12192668Application Date: 2008-08-15
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Publication No.: US08257128B2Publication Date: 2012-09-04
- Inventor: Yong Qiu , Deqiang Zhang , Yang Li , Guohui Zhang , Kongwu Wu , Lian Duan , Yudi Gao
- Applicant: Yong Qiu , Deqiang Zhang , Yang Li , Guohui Zhang , Kongwu Wu , Lian Duan , Yudi Gao
- Applicant Address: CN Beijing CN Beijing CN Jiangsu
- Assignee: Tsinghua University,Beijing Visionox Technology,Kunshan Visionox Display Co., Ltd.
- Current Assignee: Tsinghua University,Beijing Visionox Technology,Kunshan Visionox Display Co., Ltd.
- Current Assignee Address: CN Beijing CN Beijing CN Jiangsu
- Agency: Foley & Lardner LLP
- Priority: CN200710120335 20070816
- Main IPC: H01J9/00
- IPC: H01J9/00
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 Li3N. Said Li film is fabricated by decomposing Li3N 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 Li3N under a vacuum evaporation condition, and a method for the preparation thereof.
Public/Granted literature
- US20090045737A1 ORGANIC LIGHT EMITTING DEVICE Public/Granted day:2009-02-19
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