ORGANIC ELECTROLUMINESCENCE DEVICE AND METHOD FOR MANUFACTURE THEREOF

摘要

An organic electroluminescence device (100, 200) comprises a substrate (110), an anode (130), a light emitting layer (160) and a cathode (190) stacked sequentially. The anode (130) comprises a light transmittance increased layer (131), a conductive layer (132) and a hole injection auxiliary layer (133) stacked on the substrate (110) sequentially. The materials of the light transmittance increased layer (131) are inorganic compounds of zinc with a light transmittance of 400 nm to 800 nm in the visible region and a refractive index greater than 2.3. The material of the conductive layer (132) is graphene. The utilization of light transmittance increased principle for multilayer anode structure can make the light transmittance of the anode in the visible region high and surface resistance low. The utilization of inorganic material with hole injection ability can reduce the hole injection barrier, make the luminous performance of the organic electroluminescence device (100, 200) stable and luminous efficiency high. A method for manufacturing the organic electroluminescence device (100, 200) is also provided. The anode is prepared by vacuum evaporation and pulling method, which is convenient to operate and is suitable for large scale production.