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20 August 2020 Printable thermally activated delayed fluorescence polymer light emitting diode
Cameron Cole, Susanna Kunz, Nico-Patrick Thoebes, Prashant M. Sonar, James Blinco, Christopher Barner-Kowollik, Soniya D. Yambem
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Proceedings Volume 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV; 1147305 (2020) https://doi.org/10.1117/12.2569764
Event: SPIE Organic Photonics + Electronics, 2020, Online Only
Abstract
Organic light emitting diodes (OLEDs) are thin, lightweight and flexible whilst still maintaining high efficiencies. Therefore, OLEDs are at the forefront of display technology and recently, applications of OLEDs have emerged in solid state lighting. Additionally, OLEDs can be made extremely flexible and stretchable, making them suitable for use in wearable electronics. Among light emitting materials for OLEDs, thermally activated delayed fluorescent (TADF) materials have shown great promise in the last few years. In this study, we report a solution processable TADF emitting polymer as an emissive material for OLEDs. The bespoke polymer structure has the TADF emitter 4-(9H-carbazol9-yl)-2-(3′-hydroxy-[1,1′- biphenyl]-3-yl)isoindoline-1,3-dione as a pendant group on a poly(methyl methacrylate) based polymer chain. We demonstrate ink-jet printed OLEDs using our TADF polymer, which allows for precise patterning without masks, deposition of nanometer scale thicknesses, and minimal wastage
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Cameron Cole, Susanna Kunz, Nico-Patrick Thoebes, Prashant M. Sonar, James Blinco, Christopher Barner-Kowollik, and Soniya D. Yambem "Printable thermally activated delayed fluorescence polymer light emitting diode", Proc. SPIE 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV, 1147305 (20 August 2020); https://doi.org/10.1117/12.2569764
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KEYWORDS
Organic light emitting diodes
Luminescence
Polymers
Optical lithography
Photomasks
Vacuum deposition
Display technology
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