全印刷工艺制备聚合物OLED显示屏

发布时间：2019-04-15 19:01

【摘要】：详细探讨采用全印刷工艺,制备聚合物OLED显示屏的工艺流程和技术难点的克服。通过喷墨打印纳米银电子墨水制备金属阴极,完全避免了高温及真空工艺的使用。在显示屏制备过程中,我们成功研发由水/醇溶性共轭聚合物聚[9,9-二辛基芴-9,9-双(N,N-二甲基胺丙基)芴],与一种可固化的环氧树脂粘合剂共混形成的多功能缓冲层。此多功能缓冲层,一方面保护有机功能层,避免纳米阴电子墨水的侵蚀,另一方面提供必需的电子注入功能,使高功函银阴极可以有效地注入电子。通过研究表面能优化打印阴极的成型形貌,并克服工艺难点,所制得的96×3×64分辨率的单色和全彩色聚合物OLED显示屏无坏点/坏线,红、绿、蓝电流效率分别为0.62、4.38、0.93cd/A,色坐标分别为(0.63,0.37)、(0.39,0.57)、(0.18,0.16)。
[Abstract]:The technological process and technical difficulties of preparing polymer OLED display screen by full printing process are discussed in detail. Metal cathode prepared by ink jet printing nano silver electronic ink completely avoids the use of high temperature and vacuum technology. In the process of screen preparation, we have successfully developed poly [9,9-dioctylfluorene-9,9-bis (N, N-dimethylamine propyl) fluorene], a water / alcohol-soluble conjugated polymer, A multifunctional buffer layer formed by blending with a curable epoxy resin adhesive. This multifunctional buffer layer, on the one hand, protects the organic functional layer from the erosion of nano-negative electron ink, on the other hand, provides the necessary electron injection function, so that the high-power silver cathode can be effectively injected into the electron. The surface can optimize the shape of the printed cathode and overcome the process difficulties. The 96 脳 3 脳 64 resolution monochromatic and full color polymer OLED display screen has no damage point / bad line, red and green. The blue current efficiencies were 0.62, 4.38, 0.93), (A, respectively. The color coordinates were (0.63, 0.37), (0.39, 0.57), (0.18, 0.16), and the color coordinates were (0.63, 0.37), (0.39, 0.57), (0.18, 0.16).
【作者单位】：广东华南理工大学材料科学与工程学院高分子光电材料与器件研究所发光材料与器件国家重点实验室;
【基金】：973项目(2009CB623604,2009CB930604) 863项目(2008AA03A311) 国家自然科学基金面上项目(61076116)
【分类号】：TS805;TN873

【共引文献】