中红外级联超晶格led从新的四层超晶格和纹理界面提高数量级

2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID) Pub Date : 2020-08-01 DOI:10.1109/rapid49481.2020.9195698

J. Prineas, D. Montealegre, A. C. Walhof, K. Schrock

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摘要

我们将新的四层超晶格整合到级联的中红外超晶格中，以提高量子效率，并将衬底(发射侧)变薄/变粗，以改善光提取。每一种都使InAs/GaSb无纹理中红外led的发光度提高了约3倍;壁塞效率提高10倍以上。

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Mid-Infrared Cascaded Superlattice LEDs Improved Order of Magnitude from New Four-Layer Superlattices and Textured Interfaces

We incorporate new four-layer superlattices into cascaded mid-infrared superlattices for improved quantum efficiency, and thinning/roughening of the substrate (emission side) for improved light extraction. Each improves radiance of InAs/GaSb, untextured mid-infrared LEDs by ~3x; wallplug efficiency is improved >10x.

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2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)

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