Title :
Organic EL cells using alkaline metal compounds as electron injection materials
Author :
Wakimoto, Takeo ; Fukuda, Yoshinori ; Nagayama, Kenichi ; Yokoi, Akira ; Nakada, Hitoshi ; Tsuchida, Masami
Author_Institution :
Pioneer Electron. Corp., Saitama, Japan
fDate :
8/1/1997 12:00:00 AM
Abstract :
Organic electroluminescent (EL) devices with multilayer structure were fabricated using alkaline metal compounds as the electron injection materials. We found that the EL cells using the alkaline metal compounds reduce the driving voltage and increase the quantum EL efficiency. In addition, these cells are made with good reproducibility compared with the cells using aluminum and lithium alloy cathode
Keywords :
alkaline earth compounds; electroluminescent devices; organic compounds; EL cell; alkaline metal compound; driving voltage; electron injection material; multilayer structure; organic electroluminescent device; quantum efficiency; reproducibility; Aluminum alloys; Cathodes; Electroluminescent devices; Electrons; Inorganic materials; Lithium; Nonhomogeneous media; Organic materials; Reproducibility of results; Voltage;
Journal_Title :
Electron Devices, IEEE Transactions on
