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14 March 2023 Side-by-side white phosphorescent organic light-emitting diodes for white illumination sources
Claire Arneson, Stephen R. Forrest, Xinjing Huang
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Proceedings Volume PC12418, Organic Photonic Materials and Devices XXV; PC1241801 (2023) https://doi.org/10.1117/12.2650471
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
White phosphorescent organic light emitting diodes (WOLEDs) offer many advantages for solid-state lighting applications, including high color-rendering indexes, tunable color temperatures, and color stability. In side-by-side geometry, emissive stripes of different colors can be driven separately to enable color tunability. Previous side-by-side OLEDs have been patterned using shadow masks or chemical lift-off methods. We utilize a photolithographic peel-off patterning method to fabricate side-by-side WOLEDs consisting of two isolated color stripes, one emitting in the yellow and the other in the blue. This method allows for high-resolution stripe patterning without sacrificing device performance and lifetime.
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Claire Arneson, Stephen R. Forrest, and Xinjing Huang "Side-by-side white phosphorescent organic light-emitting diodes for white illumination sources", Proc. SPIE PC12418, Organic Photonic Materials and Devices XXV, PC1241801 (14 March 2023); https://doi.org/10.1117/12.2650471
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KEYWORDS
Phosphorescent organic light-emitting diodes
Organic light emitting diodes
Optical lithography
Light sources and illumination
Fluctuations and noise
Lithium
Microlens array
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