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

John P. Prineas; David A. Montealegre; Alex C. Walhof; Katrina Schrock

doi:10.1109/RAPID49481.2020.9195698

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Conference proceeding

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

John P. Prineas, David A. Montealegre, Alex C. Walhof and Katrina Schrock

2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID), pp.1-3

08/2020

DOI: 10.1109/RAPID49481.2020.9195698

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Abstract

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.

cascaded

GaSb

III-V Semiconductors

LED

Light emitting diodes

Mid-infrared

Optimized production technology

Sensors

superlattice

Superlattices

Details

Title: Subtitle: Mid-Infrared Cascaded Superlattice LEDs Improved Order of Magnitude from New Four-Layer Superlattices and Textured Interfaces
Creators: John P. Prineas - University of Iowa
David A. Montealegre - University of Iowa
Alex C. Walhof - Photonics
Katrina Schrock - University of Iowa
Resource Type: Conference proceeding
Publication Details: 2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID), pp.1-3
Publisher: IEEE
DOI: 10.1109/RAPID49481.2020.9195698
Language: English
Date published: 08/2020
Academic Unit: Physics and Astronomy
Record Identifier: 9984429025702771

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