利用真空蒸镀方法,在PET柔性衬底上制备了有机电致发光器件.分析了玻璃和柔性衬底器件的电压、电流和亮度特性,重点讨论LiF层对器件性能的影响、柔性衬底上器件的失效机理,以及器件性能随时间衰减现象.实验结果表明,相同条件下,LiF层的加入能降低器件的开启电压,从7 V降至5.5 V;柔性衬底与界面容易形成缺陷,影响器件的寿命.
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