Method for improving organic electro-luminescence device lifetime

This invention relates to a method for increasing the service life of organic electroluminescence device, characterized in processing oxygen plasma conducting high polymer material and injecting in strata dioxy ethylthiophene-polystyrolsulfon acid(PEDOT: PSS) surface, and improving work stability and service life of device. The device comprises an indium tin oxide transparent conducting positive pole(1) coated on glass, a conducting high polymer material cacity injecting layer(2), an organic material cavity transferring layer(3), an organic material emitting layer(4), a organic material electron transferring layer(5), a metal negative pole. The invention has effectively increase service life of device.