Title
Toward high volume solution based roll-to-roll processing of OLEDs
Author
Abbel, R.
de Vries, I.
Langen, A.
Kirchner, G.
T’Mannetje, H.
Gorter, H.
Wilson, J.
Groen, P.
Publication year
2017
Abstract
The large volume production of flexible electronics by solution based roll-to-roll (R2R) manufacturing technologies is a promising upscaling strategy for the organic electronics industry. Typical optoelectronic devices like organic light emitting diodes (OLEDs) consist of a complex stack of functional layers. Solution deposition of these structures eliminates the need for expensive vacuum processing. This contribution presents approaches for solution based R2R production methods of functional OLED layers on flexible polymer substrates. The development of a R2R line with two slot-die coating stations is discussed which can deposit two uniform layers consecutively in a single run (“tandem coating”) at web speeds up to 30 m/min. Furthermore, it offers the unique feature that there is no contact between the rollers and the top side of the substrate where the functional coating is deposited. Thereby, an important source of particle contamination and other damage to the device is eliminated. In addition to continuous deposition, stripe and intermittent coating techniques have been developed, allowing the production of patterned layers. Finally, examples will be shown of OLEDs where two functional materials are deposited by R2R processing from solution.
Subject
Coating
Thin film
Solution deposition
OLEDs
Roll to roll manufacturing
Industrial Innovation
Nano Technology
HOL - Holst HOL - Holst
TS - Technical Sciences
To reference this document use:
http://resolver.tudelft.nl/uuid:1801e8c1-29e4-41a0-80fb-72de17fadf3e
DOI
https://doi.org/10.1557/jmr.2017.204
TNO identifier
781149
Publisher
Cambridge
ISSN
2044-5326
Source
Journal of Materials Research, 32 (32), 2219-2229
Document type
article