Nonlinear Absorption Applications of CH3 NH3 PbBr3 Perovskite Crystals
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
KAUST Solar Center (KSC)
Physical Sciences and Engineering (PSE) Division
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AbstractResearchers have recently revealed that hybrid lead halide perovskites exhibit ferroelectricity, which is often associated with other physical characteristics, such as a large nonlinear optical response. In this work, the nonlinear optical properties of single crystal inorganic–organic hybrid perovskite CH3NH3PbBr3 are studied. By exciting the material with a 1044 nm laser, strong two-photon absorption-induced photoluminescence in the green spectral region is observed. Using the transmission open-aperture Z-scan technique, the values of the two-photon absorption coefficient are observed to be 8.5 cm GW−1, which is much higher than that of standard two-photon absorbing materials that are industrially used in nonlinear optical applications, such as lithium niobate (LiNbO3), LiTaO3, KTiOPO4, and KH2PO4. Such a strong two-photon absorption effect in CH3NH3PbBr3 can be used to modulate the spectral and spatial profiles of laser pulses, as well as to reduce noise, and can be used to strongly control the intensity of incident light. In this study, the superior optical limiting, pulse reshaping, and stabilization properties of CH3NH3PbBr3 are demonstrated, opening new applications for perovskites in nonlinear optics.
CitationWei T-C, Mokkapati S, Li T-Y, Lin C-H, Lin G-R, et al. (2018) Nonlinear Absorption Applications of CH3 NH3 PbBr3 Perovskite Crystals. Advanced Functional Materials: 1707175. Available: http://dx.doi.org/10.1002/adfm.201707175.
SponsorsThis work was financially supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR-2016-CRG5-3005), the KAUST solar center (FCC/1/3079-08-01), and the KAUST baseline funding. Australian Research Council and Australian National Fabrication Facility are acknowledged for financial support and access to facilities, respectively.
JournalAdvanced Functional Materials