Patterning of flexible organic light emitting diode (FOLED) stack using an ultrafast laser.
Patterning of flexible organic light emitting diode (FOLED) stack using an ultrafast laser.
复制标题
使用超快激光对柔性有机发光二极管 (FOLED) 堆栈进行图案化。
作者：
R. Mandamparambil;H. Fledderus;G. Van Steenberge;A. Dietzel
飞秒激光已成功用于对单层厚度约为 100 nm 的薄型柔性有机发光二极管 (FOLED) 结构进行图案化。作者在本文中报告了层界面处的阶梯状烧蚀行为，这解释了整个层的局部去除。各种表面分析技术用于研究消融区域内及其附近的形态和化学成分。这项研究开辟了一条新途径，使用飞秒激光器选择性地烧蚀柔性基板上多层堆叠的不同层，从而允许大面积柔性有机电子器件的沉积后结构化。
A femtosecond laser has been successfully utilized for patterning thin Flexible Organic Light Emitting Diode (FOLED) structures of individual layer thickness around 100nm. The authors report in this paper a step-like ablation behavior at the layer interfaces which accounts for a local removal of entire layers. Various surface analyzing techniques are used to investigate the morphologies and chemical compositions within and in the vicinity of the ablation areas. This study opens a new avenue in selectively ablating different layers from a multilayer stack on flexible substrates using fs lasers allowing post deposition structuring of large area flexible organic electronic devices.