High-Resolution Organic Light-Emitting Diodes Patterned via Contact Printing

In this study, we report a contact printing technique that uses polyurethane-acrylate (PUA) polymers as the printing stamps to pattern electroluminescent layers of organic light emitting diodes (OLEDs). We demonstrate that electroluminescent thin films can be printed with high uniformity and resolut...

Full description

Saved in:
Bibliographic Details
Published inACS applied materials & interfaces Vol. 8; no. 26; pp. 16809 - 16815
Main Authors Li, Jinhai, Xu, Lisong, Tang, Ching W, Shestopalov, Alexander A
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 06.07.2016
Subjects
high-resolution printing
thin-film patterning
organic light emitting diodes
contact printing
polyurethane acrylate
Online AccessGet full text

Cover

More Information
Summary:In this study, we report a contact printing technique that uses polyurethane-acrylate (PUA) polymers as the printing stamps to pattern electroluminescent layers of organic light emitting diodes (OLEDs). We demonstrate that electroluminescent thin films can be printed with high uniformity and resolution. We also show that the performance of the printed devices can be improved via postprinting thermal annealing, and that the external quantum efficiency of the printed devices is comparable with the efficiency of the vacuum-deposited OLEDs. Our results suggest that the PUA-based contact printing can be used as an alternative to the traditional shadow mask deposition, permitting manufacturing of OLED displays with the resolution up to the diffraction limit of visible-light emission.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.6b05286