@article{5575d729d5514b7b933d5aaa63fbe3f9,
title = "Strong Excitonic Magneto-Optic Effects in Two-Dimensional Organic-Inorganic Hybrid Perovskites",
abstract = "This work demonstrates the strong excitonic magneto-optic (MO) effects of magnetic circular dichroism (MCD) and Faraday rotation (FR) in nonmagnetic two-dimensional (2D) organic-inorganic hybrid Ruddlesden-Popper perovskites (RPPs) at room temperature. Due to their strong and sharp excitonic absorption as a result of unique quantum well structures of 2D RPPs, sizeable linear excitonic MO effects of MCD and FR can be observed at room temperature under a low magnetic field (<1 T) compared with their three-dimensional counterpart. In addition, since the band gaps of 2D organic-inorganic hybrid perovskites can be manipulated either by changing the number n of inorganic octahedral slabs per unit cell or through halide engineering, linear excitonic MO effects of 2D-RPPs can be observed through the broadband spectral ranges of visible light. Our result may pave the way for the promising research field of MO and magneto-optoelectronic applications based on 2D organic-inorganic hybrid perovskites with facile solution processes.",
keywords = "Faraday rotation, broadband, exciton, magnetic circular dichroism, two-dimensional perovskite",
author = "Chen, {Tzu Pei} and Lin, {Jun Xiao} and Lin, {Cheng Chieh} and Lin, {Chi Ying} and Ke, {We Chen} and Wang, {Di Yan} and Hsu, {Hua Shu} and Chen, {Chia Chun} and Chen, {Chun Wei}",
note = "Funding Information: T.P.C. and J.X.L. contributed equally to this work. This work was supported by the Ministry of Science and Technology (MOST), Taiwan (R.O.C.) and the Taiwan Consortium of Emergent Crystalline Materials (TCECM), (Project nos. 107-2112-M-002-024-MY3, 108-2923-M-002-002-MY2, and 109-2112-M-153-004). Financial support from the Center of Atomic Initiative for New Materials (AI-Mat), National Taiwan University and from the Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education in Taiwan (108L9008) is acknowledged. The authors would like to thank Professor Yang-Fang Chen at the Department of Physics, National Taiwan University for the valuable discussion. Publisher Copyright: {\textcopyright} ",
year = "2021",
month = mar,
day = "3",
doi = "10.1021/acsami.0c20863",
language = "English",
volume = "13",
pages = "10279--10286",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "8",
}