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In this paper we introduce a new light emitting device where phosphorescent emitters are intentionally coupled to the surface plasmon mode of a nearby metal electrode for decay rate enhancement. This energy is subsequently converted to photons in free space via a nanoparticle-based out-coupling scheme allowing us to harvest both efficiency and stability gains. Compared to a reference OLED based on conventional device design, our new architecture achieves a two-fold increase in operational stability at the same brightness while simultaneously outcoupling 8% of photons from the device.
Nicholas Thompson
"Increasing OLED stability: Plasmonic PHOLED", Proc. SPIE 11808, Organic and Hybrid Light Emitting Materials and Devices XXV, 118080C (1 August 2021); https://doi.org/10.1117/12.2595069
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Nicholas Thompson, "Increasing OLED stability: Plasmonic PHOLED," Proc. SPIE 11808, Organic and Hybrid Light Emitting Materials and Devices XXV, 118080C (1 August 2021); https://doi.org/10.1117/12.2595069