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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202002972
|2 doi
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|a pubmed24n1042.xml
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|a (DE-627)NLM312817061
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|a (NLM)32705717
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Li, Maofan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Giant and Broadband Multiphoton Absorption Nonlinearities of a 2D Organometallic Perovskite Ferroelectric
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 07.12.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Multiphoton absorption (MPA) has been utilized for important technological applications. High-order multiphoton harvesting (e.g., five-photon absorption, 5PA) exhibits unique properties that could benefit biophotonics. Within this field, perovskite oxide ferroelectrics (e.g., BaTiO3 ) enable low-order optical nonlinearities of 2PA/3PA processes. However, it is challenging to obtain efficient, high-order 5PA effects. Herein, for the first time, giant and broadband MPA properties are presented in the 2D hybrid perovskite ferroelectric (IA)2 (MA)2 Pb3 Br10 (1; IA = isoamylammonium and MA = methylammonium), where multiphoton-excited optical nonlinearities related to different MPA mechanisms over a broadband range of 550-2400 nm are observed. Strikingly, its 5PA absorption cross-section (σ5 ) reaches up to 1.2 × 10-132 cm10 s4 photon-4 (at 2400 nm), almost 10 orders larger than some state-of-the-art organic molecules and a record-high value among all known ferroelectrics. This unprecedented 5PA effect results from the quantum-confined motif of inorganic trilayer sheets (wells) and organic cations (barriers) in 1. Moreover, its large ferroelectric polarization of 5 µC cm-2 could promote modulation of MPA effects under external electric fields. As far as it is known, this is the first report on giant, broadband high-order MPA properties in ferroelectrics, which provides potential, novel electric-ordered materials for next-generation biophotonic applications
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|a Journal Article
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|a 2D ferroelectrics
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|a five-photon absorption
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| 650 |
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4 |
|a organometallic perovskites
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| 700 |
1 |
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|a Xu, Yanming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Han, Shiguo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Jinlong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xie, Zhenda
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Yi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Zhiyun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hong, Maochun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Junhua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Zhihua
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 32(2020), 36 vom: 15. Sept., Seite e2002972
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:32
|g year:2020
|g number:36
|g day:15
|g month:09
|g pages:e2002972
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202002972
|3 Volltext
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