Outstanding nonlinear optical properties of methylammonium- and Cs-PbX3 (X = Br, I, and Br–I) perovskites: Polycrystalline thin films and nanoparticles
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Otros documentos de la autoría: Suárez, Isaac; Vallés Pelarda, Marta; Gualdrón Reyes, Andrés Fabián; Mora-Sero, Ivan; Ferrando, Albert; Michinel, Humberto; Salgueiro, José Ramón; Martínez-Pastor, Juan P.
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Título
Outstanding nonlinear optical properties of methylammonium- and Cs-PbX3 (X = Br, I, and Br–I) perovskites: Polycrystalline thin films and nanoparticlesAutoría
Fecha de publicación
2019Editor
AIP PublishingISSN
2166-532XCita bibliográfica
SUÁREZ, I., VALLÉS-PELARDA, M., GUALDRÓN-REYES, A.F., MORA-SERÓ, I., FERRANDO, A., MICHINEL, H., SALGUEIRO, J.R. y PASTOR, J.P.M., 2019. Outstanding nonlinear optical properties of methylammonium- and Cs-PbX 3 (X = Br, I, and Br–I) perovskites: Polycrystalline thin films and nanoparticles. APL Materials, vol. 7, no. 4, pp. 041106. ISSN 2166-532X. DOI 10.1063/1.5090926Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://aip.scitation.org/doi/abs/10.1063/1.5090926Versión
info:eu-repo/semantics/publishedVersionResumen
Metal Halide Perovskites (MHPs) have arisen as promising materials to construct cost-effective photovoltaic and light emission devices. The
study of nonlinear optical properties of MHPs is necessary to get similar ... [+]
Metal Halide Perovskites (MHPs) have arisen as promising materials to construct cost-effective photovoltaic and light emission devices. The
study of nonlinear optical properties of MHPs is necessary to get similar success in nonlinear photonic devices, which is practically absent in
the literature. The determination of the third order nonlinear coefficients is typically done by the Z-scan technique, which is limited by the
scattering of polycrystalline thin films. In this work, we have studied nonlinear optical properties of polycrystalline CH3NH3PbX3 (MAPbX3)
thin films and colloidal CsPbX3 nanoparticles with three different bandgaps (X3 = I3, Br3, and Br1.5I1.5). Their bright generation of photoluminescence
under infrared illumination demonstrates an excellent efficiency of multiphoton absorption. The nonlinear absorption coefficient
( ) was studied by analyzing the transmitted light through the samples, observing the expected Eg
−3 dependence with values as high as
= 1500 cm/GW. In addition, we proposed the use of a modified Z-scan technique with imaging processing to analyze the nonlinear refraction
coefficient (n2) under the laser damage threshold. Our experimental data agree quite well with theoretical predictions, demonstrating the
accuracy of the method and potential applications to other thin films. Moreover, n2 parameter reaches values of 3.5 cm2/GW, indicating the
suitability of MHPs for nonlinear photonics. [-]
Proyecto de investigación
MINECO Project No. TEC2017-86102-C2-1-R; European Research Council (ERC) via Consolidator Grant (724424—No-LIMIT); Universitat Jaume I (PREDOC/2017/40).Derechos de acceso
© Author(s) 2019
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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