Influence of the Bismuth Content on the Optical Properties and Photoluminescence Decay Time in GaSbBi Films

[Image: see text] We report the optical properties of GaSbBi layers grown on GaSb (100) substrates with different bismuth contents of 5.8 and 8.0% Bi. Fourier-transform photoluminescence spectra were determined to identify the band gaps of the studied materials. Further temperature- and power-depend...

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Autores principales: Smołka, Tristan, Rygała, Michał, Hilska, Joonas, Puustinen, Janne, Koivusalo, Eero, Guina, Mircea, Motyka, Marcin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10552505/
https://www.ncbi.nlm.nih.gov/pubmed/37810694
http://dx.doi.org/10.1021/acsomega.3c05046
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author Smołka, Tristan
Rygała, Michał
Hilska, Joonas
Puustinen, Janne
Koivusalo, Eero
Guina, Mircea
Motyka, Marcin
author_facet Smołka, Tristan
Rygała, Michał
Hilska, Joonas
Puustinen, Janne
Koivusalo, Eero
Guina, Mircea
Motyka, Marcin
author_sort Smołka, Tristan
collection PubMed
description [Image: see text] We report the optical properties of GaSbBi layers grown on GaSb (100) substrates with different bismuth contents of 5.8 and 8.0% Bi. Fourier-transform photoluminescence spectra were determined to identify the band gaps of the studied materials. Further temperature- and power-dependent photoluminescence measurements indicated the presence of localized states connected to bismuth clustering. Finally, time-resolved photoluminescence measurements based on single-photon counting allowed the determination of characteristic photoluminescence decay time constants. Because of the increasing bismuth content and clustering effects, an increase in the time constant was observed.
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spelling pubmed-105525052023-10-06 Influence of the Bismuth Content on the Optical Properties and Photoluminescence Decay Time in GaSbBi Films Smołka, Tristan Rygała, Michał Hilska, Joonas Puustinen, Janne Koivusalo, Eero Guina, Mircea Motyka, Marcin ACS Omega [Image: see text] We report the optical properties of GaSbBi layers grown on GaSb (100) substrates with different bismuth contents of 5.8 and 8.0% Bi. Fourier-transform photoluminescence spectra were determined to identify the band gaps of the studied materials. Further temperature- and power-dependent photoluminescence measurements indicated the presence of localized states connected to bismuth clustering. Finally, time-resolved photoluminescence measurements based on single-photon counting allowed the determination of characteristic photoluminescence decay time constants. Because of the increasing bismuth content and clustering effects, an increase in the time constant was observed. American Chemical Society 2023-09-18 /pmc/articles/PMC10552505/ /pubmed/37810694 http://dx.doi.org/10.1021/acsomega.3c05046 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Smołka, Tristan
Rygała, Michał
Hilska, Joonas
Puustinen, Janne
Koivusalo, Eero
Guina, Mircea
Motyka, Marcin
Influence of the Bismuth Content on the Optical Properties and Photoluminescence Decay Time in GaSbBi Films
title Influence of the Bismuth Content on the Optical Properties and Photoluminescence Decay Time in GaSbBi Films
title_full Influence of the Bismuth Content on the Optical Properties and Photoluminescence Decay Time in GaSbBi Films
title_fullStr Influence of the Bismuth Content on the Optical Properties and Photoluminescence Decay Time in GaSbBi Films
title_full_unstemmed Influence of the Bismuth Content on the Optical Properties and Photoluminescence Decay Time in GaSbBi Films
title_short Influence of the Bismuth Content on the Optical Properties and Photoluminescence Decay Time in GaSbBi Films
title_sort influence of the bismuth content on the optical properties and photoluminescence decay time in gasbbi films
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10552505/
https://www.ncbi.nlm.nih.gov/pubmed/37810694
http://dx.doi.org/10.1021/acsomega.3c05046
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