Giant Nonlinear Optical Response in Triple Cation Halide Mixed Perovskite Films

doi:10.1002/adom.201901766

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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
ISSN	2195-1071
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.
DOI	10.1002/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
推荐引用方式 GB/T 7714	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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