Journal
ACS OMEGA
Volume 7, Issue 33, Pages 29100-29105Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.2c02967
Keywords
-
Categories
Funding
- Colombia Scientific Program [FP44842-218-2018]
- Universidad Pontificia Bolivariana
- Universidad de Antioquia [G8-(Acta 2020 3906)]
- Instituto Tecnologico Metropolitano
- Institucion Universitaria Salazar y Herrera
- Southern Illinois University, Edwardsville
Ask authors/readers for more resources
An F-scan nonlinear spectrometer was used to measure the two-photon absorption coefficient of CH3NH3PbBr3 perovskite films. The experimental data was fitted using a two-band model and irradiance saturation correction, revealing a nonlinear absorption magnitude of cm/MW.
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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available