Six-Photon Excited Self-Trapped Excitons Photoluminescence in Lead-Free Halide Perovskite

Jiang, Jutao1,2,3; Niu, Guangming1,2,4; Sui, Laizhi1,2; Wang, Xiaowei1,2,3; Zeng, Xiangyu1,2; Zhang, Yutong1,2; Che, Li5; Wu, Guorong1,2; Yuan, Kaijun1,2,3; Yang, Xueming1,2,6

2022-12-01

10.1002/adom.202202634

Advanced Optical Materials   Impact Factor & Quartile

2195-1071

Multiphoton absorption (MPA) effects are suitable for biophotonic applications due to the long penetration depth and high spatial confinement. Compared with lead halide perovskites, relevant studies on MPA effects of lead-free perovskites are still scarce, especially for the high-order MPA effects. Herein, an all-inorganic lead-free Cs2TeCl6 perovskite crystal is reported that exhibits three- to six-photon absorption (3PA to 6PA) effects over a wavelength range of 800-2200 nm. The results of steady and transient optical experiments indicate that the single- and multiphoton excited broadband orange emission in Cs2TeCl6 crystals is attributed to the self-trapped excitons (STEs) recombination. What is more, the 6PA cross-section (delta(6)) has been determined to be 1.87 x 10(-174) cm(12) s(5) photon(-5) (at 1980 nm). As far as it is known, the high-order 6PA effect is unprecedented in lead-free perovskites, which paves the way for the future development of lead-free perovskite high-order multiphoton application.

lead-free perovskites self-trapped excitons six-photon absorption

SCI

English

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Chemical Dynamics Research Center[22288201] ; National Natural Science Foundation of China (NSFC)["21873009","21922306"] ; Key Technology Team of the Chinese Academy of Science[GJJSTD20220001] ; Liaoning Revitalization Talents Program[XLYC1907154]

Materials Science ; Optics

Materials Science, Multidisciplinary ; Optics

WOS:000903081900001

WILEY-V C H VERLAG GMBH

Web of Science

1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Coherent Light Source, 457 Zhongshan Rd, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
4.Dalian Maritime Univ, Marine Engn Coll, Dalian 116026, Peoples R China
5.Dalian Maritime Univ, Sch Sci, Dept Phys, Dalian 116026, Peoples R China
6.Southern Univ Sci & Technol, Coll Sci, Dept Chem, P, R China, Shenzhen 518055, Peoples R China

Jiang, Jutao,Niu, Guangming,Sui, Laizhi,et al. Six-Photon Excited Self-Trapped Excitons Photoluminescence in Lead-Free Halide Perovskite[J]. Advanced Optical Materials,2022.

Jiang, Jutao.,Niu, Guangming.,Sui, Laizhi.,Wang, Xiaowei.,Zeng, Xiangyu.,...&Yang, Xueming.(2022).Six-Photon Excited Self-Trapped Excitons Photoluminescence in Lead-Free Halide Perovskite.Advanced Optical Materials.

Jiang, Jutao,et al."Six-Photon Excited Self-Trapped Excitons Photoluminescence in Lead-Free Halide Perovskite".Advanced Optical Materials (2022).