P. A. Bokhan, K. S. Zhuravlev, D. E. Zakrevsky, T. V. Malin, N. V. Fateev
{"title":"Mechanisms of Optical Gain in Heavily Doped AlxGa1 – xN:Si Structures (x = 0.56–1)","authors":"P. A. Bokhan, K. S. Zhuravlev, D. E. Zakrevsky, T. V. Malin, N. V. Fateev","doi":"10.1134/s1063782624050026","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The optical gain parameters in the six heavily doped Al<sub><i>x</i></sub>Ga<sub>1 – <i>x</i></sub>N:Si structures with <i>x</i> = 0.56, 0.62, 0.65, 0.68, 0.74, were experimentally studied at room temperature. Under optical excitation by pulsed radiation with λ = 266 nm, the mechanisms of stimulated emission of radiative recombination of nonequilibrium charge carriers, leading to the appearance of broadband radiation in the wide range (350–650 nm) of the spectrum with a high luminescence quantum yield are studied. High optical gain (>10<sup>3</sup> cm<sup>–1</sup>) are realized due to the good optical quality of the structures, large donor-acceptor recombination cross sections (~10<sup>–15</sup> cm<sup>2</sup>) and the high density (up to 10<sup>20</sup> cm<sup>–3</sup>) of radiative recombination centers.</p>","PeriodicalId":21760,"journal":{"name":"Semiconductors","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Semiconductors","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1134/s1063782624050026","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
引用次数: 0
Abstract
The optical gain parameters in the six heavily doped AlxGa1 – xN:Si structures with x = 0.56, 0.62, 0.65, 0.68, 0.74, were experimentally studied at room temperature. Under optical excitation by pulsed radiation with λ = 266 nm, the mechanisms of stimulated emission of radiative recombination of nonequilibrium charge carriers, leading to the appearance of broadband radiation in the wide range (350–650 nm) of the spectrum with a high luminescence quantum yield are studied. High optical gain (>103 cm–1) are realized due to the good optical quality of the structures, large donor-acceptor recombination cross sections (~10–15 cm2) and the high density (up to 1020 cm–3) of radiative recombination centers.
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Publishes the most important work in semiconductor research in the countries of the former Soviet Union. Covers semiconductor theory, transport phenomena in semiconductors, optics, magnetooptics, and electrooptics of semiconductors, semiconductor lasers and semiconductor surface physics. The journal features an extensive book review section.
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