Nonlinear Two-Photon Absorption in the Near-Infrared Band for Lead Bromide Perovskite Films Using an F-Scan Nonlinear Spectrometer

[Image: see text] An F-scan nonlinear spectrometer is used to measure the two-photon absorption coefficient for CH(3)NH(3)PbBr(3) perovskite films from 690 to 995 nm. This spectrometer uses an electrically focused tunable lens and a tunable femtosecond-pulse laser (Mai Tai-HP) with a resolution of 5...

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Autores principales: Rueda, Edgar, Serna, Juan, Uribe, Jose Ignacio, Ramírez, Daniel, Jaramillo, Franklin, Osorio, Jaime, García, Hernando
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9404478/
https://www.ncbi.nlm.nih.gov/pubmed/36033660
http://dx.doi.org/10.1021/acsomega.2c02967
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author Rueda, Edgar
Serna, Juan
Uribe, Jose Ignacio
Ramírez, Daniel
Jaramillo, Franklin
Osorio, Jaime
García, Hernando
author_facet Rueda, Edgar
Serna, Juan
Uribe, Jose Ignacio
Ramírez, Daniel
Jaramillo, Franklin
Osorio, Jaime
García, Hernando
author_sort Rueda, Edgar
collection PubMed
description [Image: see text] An F-scan nonlinear spectrometer is used to measure the two-photon absorption coefficient for CH(3)NH(3)PbBr(3) perovskite films from 690 to 995 nm. This spectrometer uses an electrically focused tunable lens and a tunable femtosecond-pulse laser (Mai Tai-HP) with a resolution of 5 nm. Two-band models and saturation irradiance corrections are used to fit the experimental data. The nonlinear absorption in this wavelength range is of the order of cm/MW. We found that the best agreement between the experimental data, the reported values in the literature, and the theoretical model is obtained for an extended two-band model with irradiance saturation correction.
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spelling pubmed-94044782022-08-26 Nonlinear Two-Photon Absorption in the Near-Infrared Band for Lead Bromide Perovskite Films Using an F-Scan Nonlinear Spectrometer Rueda, Edgar Serna, Juan Uribe, Jose Ignacio Ramírez, Daniel Jaramillo, Franklin Osorio, Jaime García, Hernando ACS Omega [Image: see text] An F-scan nonlinear spectrometer is used to measure the two-photon absorption coefficient for CH(3)NH(3)PbBr(3) perovskite films from 690 to 995 nm. This spectrometer uses an electrically focused tunable lens and a tunable femtosecond-pulse laser (Mai Tai-HP) with a resolution of 5 nm. Two-band models and saturation irradiance corrections are used to fit the experimental data. The nonlinear absorption in this wavelength range is of the order of cm/MW. We found that the best agreement between the experimental data, the reported values in the literature, and the theoretical model is obtained for an extended two-band model with irradiance saturation correction. American Chemical Society 2022-08-09 /pmc/articles/PMC9404478/ /pubmed/36033660 http://dx.doi.org/10.1021/acsomega.2c02967 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Rueda, Edgar
Serna, Juan
Uribe, Jose Ignacio
Ramírez, Daniel
Jaramillo, Franklin
Osorio, Jaime
García, Hernando
Nonlinear Two-Photon Absorption in the Near-Infrared Band for Lead Bromide Perovskite Films Using an F-Scan Nonlinear Spectrometer
title Nonlinear Two-Photon Absorption in the Near-Infrared Band for Lead Bromide Perovskite Films Using an F-Scan Nonlinear Spectrometer
title_full Nonlinear Two-Photon Absorption in the Near-Infrared Band for Lead Bromide Perovskite Films Using an F-Scan Nonlinear Spectrometer
title_fullStr Nonlinear Two-Photon Absorption in the Near-Infrared Band for Lead Bromide Perovskite Films Using an F-Scan Nonlinear Spectrometer
title_full_unstemmed Nonlinear Two-Photon Absorption in the Near-Infrared Band for Lead Bromide Perovskite Films Using an F-Scan Nonlinear Spectrometer
title_short Nonlinear Two-Photon Absorption in the Near-Infrared Band for Lead Bromide Perovskite Films Using an F-Scan Nonlinear Spectrometer
title_sort nonlinear two-photon absorption in the near-infrared band for lead bromide perovskite films using an f-scan nonlinear spectrometer
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9404478/
https://www.ncbi.nlm.nih.gov/pubmed/36033660
http://dx.doi.org/10.1021/acsomega.2c02967
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