The Preparation of Alq3/CuPc Heterojunction Organic Electroluminesence Diodes

With the method of vacuum dc sputtering and vacuum evaporation,the green light double organic light-emitting devices (OLED) of ITO/CuPc/Alq3 / Al structure were prepared, the electrical characteristics and electroluminescent properties of the device were measured. Devices show good luminous performance, light intensity reaches 600000 cps, when the wavelength of luminescence spectrum is 510 nm, luminance is 2641I/a.u.