The organic thin film electroluminescence device with blue-green color using new organic material

silicon alkyl derivative(SCS-SiH)

was fabricated. The structure of the device is Glass/ITO/PVK+SCS-SiH/Alp/Mg:Ag. The photoluminescence(PL) spectra of the film (SCS-SiH and PVK) were measured

which were illuminated by the different excitation wavelength of 406nm and 340nm

respectively. The PVK shows an emission maximum at about 420nm that corresponds to the result measured by others

[7]

.The peak wavelength of SCS-SiH film is at 516nm with 70nm full width at half maximum(FWHM).The electroluminescence spectra were also measured and the peak wavelength of EL for the device is at about 500nm. It is found that the color of the device was blue-shifted with applied voltage

which may open vast vistas for full color flat panel display. The changing range is from 520nm to 495nm. The maximum brightness of the device is 810cd/m

2

with 25V(89mA/cm

2

).