气候变化领域集成服务门户(CCPortal): Disentangling Second Harmonic Generation from Multiphoton Photoluminescence in Halide Perovskites using Multidimensional Harmonic Generation

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DOI	10.1021/acs.jpclett.0c01720
	Disentangling Second Harmonic Generation from Multiphoton Photoluminescence in Halide Perovskites using Multidimensional Harmonic Generation
	Morrow D.J.; Hautzinger M.P.; Lafayette D.P.; Scheeler J.M.; Dang L.; Leng M.; Kohler D.D.; Wheaton A.M.; Fu Y.; Guzei I.A.; Tang J.; Jin S.; Wright J.C.
发表日期	2020
ISSN	19487185
起始页码	6551
结束页码	6559
卷号	11 期号:16
英文摘要	Layered two-dimensional Ruddlesden-Popper (RP) halide perovskites are an intriguing class of semiconductors being explored for their linear and nonlinear optical and ferroelectric properties. Second harmonic generation (SHG) is commonly used to screen for noncentrosymmetric and ferroelectric materials. However, SHG measurements of perovskites can be obscured by their intense multiphoton photoluminescence (mPL). Here, we apply multidimensional harmonic generation as a method to eliminate the complications from mPL. By scanning and correlating both excitation and emission frequencies, we unambiguously assess whether a material supports SHG by examining if an emission feature scales as twice the excitation frequency. Measurements of a series of n = 2, 3 RP perovskites reveal that, contrary to previous belief, n-butylammonium (BA) RP perovskites are not SHG-Active and thus centrosymmetric, but RP perovskites with phenylethylammonium (PEA) and 2-Thiophenemethylammonium (TPMA) spacer cations display SHG. This work establishes multidimensional harmonic generation as a definitive method to measure SHG in halide perovskites. Copyright © 2020 American Chemical Society.
scopus关键词	Ferroelectric materials; Ferroelectricity; Harmonic analysis; Nonlinear optics; Perovskite; Photoluminescence; Emission features; Emission frequency; Excitation frequency; Ferroelectric property; Halide perovskites; Non-centrosymmetric; Non-linear optical; Ruddlesden-Popper; Harmonic generation
来源期刊	Journal of Physical Chemistry Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176835
作者单位	Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, United States; Sargent Joint Research Center, Wuhan National Laboratory for Optoelectronics (WNLO), School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei, 430074, China; School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei, 430074, China
推荐引用方式 GB/T 7714	Morrow D.J.,Hautzinger M.P.,Lafayette D.P.,et al. Disentangling Second Harmonic Generation from Multiphoton Photoluminescence in Halide Perovskites using Multidimensional Harmonic Generation[J],2020,11(16).
APA	Morrow D.J..,Hautzinger M.P..,Lafayette D.P..,Scheeler J.M..,Dang L..,...&Wright J.C..(2020).Disentangling Second Harmonic Generation from Multiphoton Photoluminescence in Halide Perovskites using Multidimensional Harmonic Generation.Journal of Physical Chemistry Letters,11(16).
MLA	Morrow D.J.,et al."Disentangling Second Harmonic Generation from Multiphoton Photoluminescence in Halide Perovskites using Multidimensional Harmonic Generation".Journal of Physical Chemistry Letters 11.16(2020).