3D-printed flexible organic light-emitting diode displays.
3D-printed flexible organic light-emitting diode displays.
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DOI：
10.1126/sciadv.abl8798
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发表时间：
2022-01-07
期刊：
影响因子：
13.6
通讯作者：
McAlpine MC
中科院分区：
文献类型：
--
作者：
Su R;Park SH;Ouyang X;Ahn SI;McAlpine MC
OLED 阵列在环境条件下完全 3D 打印，以产生灵活的信息显示技术。完全 3D 打印有源电子和光电设备的能力将通过不受传统微加工设施束缚的策略实现独特的设备形状因素。目前，3D 打印光电器件的性能可能会因溶液沉积活性层的不均匀性和不稳定的聚合物-金属结而受到影响。在这里，我们展示了一种多模式打印方法，可实现完全 3D 打印的柔性有机发光二极管显示器。电极、互连、绝缘和封装均采用挤出印刷，而有源层则采用喷涂印刷。喷涂印刷通过抑制印刷液滴中的定向质量传输来改善层的均匀性。通过利用印刷阴极液滴的粘弹性氧化物表面，实现了机械重构过程，以增加聚合物-金属结的接触面积。均匀的阴极阵列与顶部互连件紧密连接。这种混合方法创建了一个完全 3D 打印的柔性 8 × 8 显示器，所有像素均成功打开。
OLED arrays were fully 3D-printed under ambient conditions to produce a flexible information display technology. The ability to fully 3D-print active electronic and optoelectronic devices will enable unique device form factors via strategies untethered from conventional microfabrication facilities. Currently, the performance of 3D-printed optoelectronics can suffer from nonuniformities in the solution-deposited active layers and unstable polymer-metal junctions. Here, we demonstrate a multimodal printing methodology that results in fully 3D-printed flexible organic light-emitting diode displays. The electrodes, interconnects, insulation, and encapsulation are all extrusion-printed, while the active layers are spray-printed. Spray printing leads to improved layer uniformity via suppression of directional mass transport in the printed droplets. By exploiting the viscoelastic oxide surface of the printed cathode droplets, a mechanical reconfiguration process is achieved to increase the contact area of the polymer-metal junctions. The uniform cathode array is intimately interfaced with the top interconnects. This hybrid approach creates a fully 3D-printed flexible 8 × 8 display with all pixels turning on successfully.
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影响因子：
9.5
作者：
Kang, You Jung;Bail, Robert;Chin, Byung Doo
通讯作者：
Chin, Byung Doo
影响因子：
10.8
作者：
Kong, Yong Lin;Tamargo, Ian A.;McAlpine, Michael C.
通讯作者：
McAlpine, Michael C.
DOI：
10.1002/adma.201701218
发表时间：
2017-07
期刊：
Advanced materials (Deerfield Beach, Fla.)
影响因子：
--
作者：
Guo SZ;Qiu K;Meng F;Park SH;McAlpine MC
通讯作者：
McAlpine MC
影响因子：
7
作者：
Hoefle, Stefan;Lutz, Tobias;Colsmann, Alexander
通讯作者：
Colsmann, Alexander
影响因子：
64.8
作者：
Deegan, RD;Bakajin, O;Witten, TA
通讯作者：
Witten, TA