Title :
An organic infrared electroluminescent diode utilizing a phthalocyanine film
Author :
Fujii, Akihiko ; Ohmori, Yutaka ; Yoshino, Katsumi
Author_Institution :
Dept. of Electron. Eng., Osaka Univ., Japan
fDate :
8/1/1997 12:00:00 AM
Abstract :
Electroluminescent (EL) diodes utilizing metal-free phthalocyanine (H2Pc) have been fabricated by the vacuum evaporation method. The EL characteristics of the diodes depending upon the metal cathode and the characteristics of the diodes with the coevaporated layer with 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) have been investigated. We have demonstrated the infrared electroluminescence originated from the radiative transition corresponding to the Q band of H2Pc by taking the energy band structure into consideration
Keywords :
electroluminescent devices; light emitting diodes; optical films; organic compounds; organic semiconductors; vacuum deposited coatings; 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran; DCM; H2Pc; Q band; coevaporated layer; energy band structure; metal-free phthalocyanine film; organic infrared electroluminescent diode; radiative transition; vacuum evaporation; Cathodes; Crystallization; Diodes; Electric variables measurement; Electroluminescence; Optical films; Pulse amplifiers; Substrates; Temperature; Transistors;
Journal_Title :
Electron Devices, IEEE Transactions on
