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Rueda E, Serna J, Uribe JI, Ramírez D, Jaramillo F, Osorio J, García H. Nonlinear Two-Photon Absorption in the Near-Infrared Band for Lead Bromide Perovskite Films Using an F-Scan Nonlinear Spectrometer. ACS OMEGA 2022; 7:29100-29105. [PMID: 36033660 PMCID: PMC9404478 DOI: 10.1021/acsomega.2c02967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
An F-scan nonlinear spectrometer is used to measure the two-photon absorption coefficient for CH3NH3PbBr3 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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Affiliation(s)
- Edgar Rueda
- Grupo
de Óptica y Fotónica, Instituto de Física, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín 050010, Colombia
| | - Juan Serna
- Grupo
de Óptica y Espectroscopía, Centro de Ciencia Básica, Universidad Pontifícia Bolivariana, Cq. 1 No 70-01, Campus Laureles, Medellín 050031, Colombia
| | - Jose Ignacio Uribe
- Centro
de Investigación, Innovación y Desarrollo de Materiales—CIDEMAT,
Facultad de Ingeniería, Universidad
de Antioquia UdeA, Calle
70 No. 52-21, Medellín 050010, Colombia
- Grupo
de Estado Sólido, Instituto de Física, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín 050010, Colombia
- Ingeniush,
Institución Universitaria Salazar y Herrera, Medellín 050034, Colombia
| | - Daniel Ramírez
- Centro
de Investigación, Innovación y Desarrollo de Materiales—CIDEMAT,
Facultad de Ingeniería, Universidad
de Antioquia UdeA, Calle
70 No. 52-21, Medellín 050010, Colombia
| | - Franklin Jaramillo
- Centro
de Investigación, Innovación y Desarrollo de Materiales—CIDEMAT,
Facultad de Ingeniería, Universidad
de Antioquia UdeA, Calle
70 No. 52-21, Medellín 050010, Colombia
| | - Jaime Osorio
- Grupo
de Estado Sólido, Instituto de Física, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín 050010, Colombia
| | - Hernando García
- Department
of Physics, Southern Illinois University
Edwardsville, Edwardsville, Illinois 62026, United States
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