J. Prineas, D. Montealegre, A. C. Walhof, K. Schrock
{"title":"Mid-Infrared Cascaded Superlattice LEDs Improved Order of Magnitude from New Four-Layer Superlattices and Textured Interfaces","authors":"J. Prineas, D. Montealegre, A. C. Walhof, K. Schrock","doi":"10.1109/rapid49481.2020.9195698","DOIUrl":null,"url":null,"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.","PeriodicalId":220244,"journal":{"name":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/rapid49481.2020.9195698","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
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.
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