Prof. Dr. Pim Groen is working at TNO Holst Centre as program manager “Large Area Coating” for printed electronics and Delft University as full professor on SMART materials. He studied Chemistry at Leiden University and did his PhD on ceramic perovskite based superconductors. Hereafter he worked for Philips Research in Eindhoven (NL) and Aachen (Germany) and Morgan Electroceramics in the field of materials science. In 2008 he moved to TU Delft and TNO. He is the author of >100 publications, 2 books, 22 patents.
Roll-to-Roll Solution Processed Flexible OLEDs from the PI-SCALE Open Access Pilot Line
Flexible Organic light-emitting diodes (OLEDs) provide unique features such as high flexibility, fine and direct patterning of light emission designs over large areas, transparency, and an ultra- thin form factor which can be made in any shape. These features are difficult, if not impossible, to accomplish with conventional light sources, including LEDs. However, new products such as flexible OLEDs are not easily accessible to designers and product developers who often have to wait until mass production is in place before they can start with their work. The PI-SCALE open access flexible OLED pilot line service is set up to bridge that gap between R&D and mass manufacturing, accelerating the integration of flexible OLEDs in diverse applications. One of the manufacturing processes that the pilot line is developing is roll-to-roll (R2R) solution processed OLEDs on a flexible plastic moisture barrier film. This paper provides an update of the technical achievements and challenges of this new process. Furthermore, it will show the features and specifications of flexible OLEDs and the possibilities for obtaining prototypes from the pilot line service, together with the roadmap for future flexible OLED offerings. This is presented in the context of the exciting opportunities and anticipated challenges of creating sustainable industry around flexible OLEDs for lighting and signage applications.