Company Filing History:
1 out of 2,994 
1 out of 17 Years Active: 2007
Title: Gangtie Lei: Innovator in Electroluminescent Devices
Introduction
Gangtie Lei is a prominent inventor based in Beijing, China. He has made significant contributions to the field of organic electroluminescent devices. His innovative work focuses on carbazole derivatives, which play a crucial role in enhancing the performance of these devices.
Latest Patents
Gangtie Lei holds a patent for a "Carbazole derivative and its use in electroluminescent devices." This invention relates to a series of carbazole derivatives that serve as phosphorescent host materials in organic electroluminescent devices. The derivatives exhibit a glass transition temperature ranging from 70°C to 220°C and a triplet energy of 2.62 eV or more. The unique structure of these derivatives includes two carbazole groups with an alkyl group and/or spiro group inserted between the carbazole group and an aromatic group. This design enhances the stability and efficiency of the devices, particularly improving the luminance and lifespan of blue triplet OLEDs.
Career Highlights
Gangtie Lei has worked with notable institutions, including Tsinghua University and Beijing Visionox Technology Co., Ltd. His experience in these organizations has allowed him to advance his research and development in the field of electroluminescent technology.
Collaborations
Throughout his career, Gangtie Lei has collaborated with esteemed colleagues such as Yong Qiu and Juan Qiao. These partnerships have contributed to the success of his innovative projects and patents.
Conclusion
Gangtie Lei is a key figure in the development of advanced materials for electroluminescent devices. His work on carbazole derivatives has the potential to significantly impact the efficiency and longevity of OLED technology.