Strong Excitonic Magneto-Optic Effects in Two-Dimensional Organic-Inorganic Hybrid Perovskites

Tzu Pei Chen, Jun Xiao Lin, Cheng Chieh Lin, Chi Ying Lin, We Chen Ke, Di Yan Wang, Hua Shu Hsu*, Chia Chun Chen, Chun Wei Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)10279-10286
Number of pages8
JournalACS Applied Materials and Interfaces
Volume13
Issue number8
DOIs
Publication statusPublished - 2021 Mar 3

Keywords

  • Faraday rotation
  • broadband
  • exciton
  • magnetic circular dichroism
  • two-dimensional perovskite

ASJC Scopus subject areas

  • General Materials Science

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