1. Patterning of Flexible Organic Light Emitting Diode (FOLED) stack using an ultrafast laser
- Author
-
Rajesh Mandamparambil, Geert Van Steenberge, Henri Fledderus, Andreas Dietzel, and TNO Industrie en Techniek
- Subjects
DEVICES ,Flexible organic electronics ,Layer interfaces ,HOL - Holst ,Ablation ,law.invention ,Post-deposition ,Stack (abstract data type) ,law ,Organic lasers ,Veröffentlichung der TU Braunschweig ,Multilayer stacks ,TS - Technical Sciences ,Industrial Innovation ,Light emitting diodes ,Atomic and Molecular Physics, and Optics ,Femto-second laser ,Physical optics ,Femtosecond ,Optoelectronics ,Light emission ,ddc:621 ,Layer (electronics) ,Light-emitting diode ,Chemical compositions ,Technology and Engineering ,Materials science ,Layer thickness ,FABRICATION ,Ultrafast laser ,Pulsed laser applications ,Fs laser ,Flexible organic light-emitting diode ,Article ,Ablation area ,Optics ,Helmet mounted displays ,ddc:6 ,ddc:62 ,Thin film ,Flexible substrate ,Flexible organic light - emitting diodes ,business.industry ,Mechatronics, Mechanics & Materials ,Laser ,Organic light emitting diodes (OLED) ,POLYMERS ,Electronics ,business - Abstract
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. (C)2010 Optical Society of America
- Published
- 2010