Stimulated Emission at Low Current Density in Organic Light Emitting Diodes

Mitchell C Nelson

doi:10.1364/PVLED.2022.PvTu1H.2

Optica Advanced Photonics Congress 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper PvTu1H.2
•https://doi.org/10.1364/PVLED.2022.PvTu1H.2

Stimulated Emission at Low Current Density in Organic Light Emitting Diodes

Mitchell C Nelson

Optical Devices and Materials for Solar Energy and Solid-state Lighting 2022

Maastricht,Limburg Netherlands
24–28 July 2022
ISBN: 978-1-957171-16-6

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New LED Spectral Regimes and Gain Media (PvTu1H)

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M. C. Nelson, "Stimulated Emission at Low Current Density in Organic Light Emitting Diodes," in Optica Advanced Photonics Congress 2022, Technical Digest Series (Optica Publishing Group, 2022), paper PvTu1H.2.

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Abstract

We observe stimulated emission from OLEDS at current densities as low as 20 uA/cm2 in a high Q cavity formed between the Ag cathode and exit surface of the substrate. In this regime, inversion is dependent on Boltzman population of vibrational levels serving as the ground state resulting in spectral dynamics on the time scale of thermalization.

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