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Giant Nonlinear Optical Response in Triple Cation Halide Mixed Perovskite Films
H. Syed,W. C. Kong,V. Mottamchetty,K. J. Lee,W. L. Yu,V. R. Soma,J. J. Yang and C. L. Guo
2020
发表期刊Advanced Optical Materials
ISSN2195-1071
卷号8期号:7页码:10
摘要The versatility of perovskites through chemical composition modification is critical for enhancing performance of a range of potential applications such as light emitters and integrated photovoltaics. However, a systematic study on the nonlinear optical (NLO) responses of these perovskites is still lacking. Here, for the first time, the NLO properties of triple cation mixed halide perovskite (TCMHP) films, (Cs(0.06)FA(0.79)MA(0.15))Pb (I0.85Br0.15)(3), using Z-scan and time-resolved spectroscopy, are investigated. It is found that TCMHP film shows strong saturable absorption at 395 nm, reverse saturable absorption such as two- and three-photon absorption (2PA, 3PA) at 790 nm (near the bandgap), and 3PA at 1200 nm. The 3PA phenomena at 790 nm are attributed to the phonon-assisted anti-Stokes process. The 2PA and 3PA coefficients are estimated to be approximate to 2.1 cm MW-1 and approximate to 900 cm(3) GW(-2), respectively, which are an order of magnitude larger than those of MAPbI(3) and other perovskites. Moreover, it is demonstrated that these giant 2PA and 3PA coefficients of TCMHP can be used to realize optical stabilization. The observed strong multiphoton absorption response will enable TCMHP materials to be suitable for various nonlinear optical applications such as multiphoton-based imaging, optical modulator, and all-optical switching devices.
DOI10.1002/adom.201901766
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收录类别SCI ; EI
语种英语
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/64543
专题中国科学院长春光学精密机械与物理研究所
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H. Syed,W. C. Kong,V. Mottamchetty,K. J. Lee,W. L. Yu,V. R. Soma,J. J. Yang and C. L. Guo. Giant Nonlinear Optical Response in Triple Cation Halide Mixed Perovskite Films[J]. Advanced Optical Materials,2020,8(7):10.
APA H. Syed,W. C. Kong,V. Mottamchetty,K. J. Lee,W. L. Yu,V. R. Soma,J. J. Yang and C. L. Guo.(2020).Giant Nonlinear Optical Response in Triple Cation Halide Mixed Perovskite Films.Advanced Optical Materials,8(7),10.
MLA H. Syed,W. C. Kong,V. Mottamchetty,K. J. Lee,W. L. Yu,V. R. Soma,J. J. Yang and C. L. Guo."Giant Nonlinear Optical Response in Triple Cation Halide Mixed Perovskite Films".Advanced Optical Materials 8.7(2020):10.
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