A chiral switchable photovoltaic ferroelectric 1D perovskite

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Yang Hu
  • Fred Florio
  • Zhizhong Chen
  • W. Adam Phelan
  • Maxime A. Siegler
  • Zhe Zhou
  • Yuwei Guo
  • Ryan Hawks
  • Jie Jiang
  • Jing Feng
  • Lifu Zhang
  • Baiwei Wang
  • Yiping Wang
  • Daniel Gall
  • Edmund F. Palermo
  • Zonghuan Lu
  • Xin Sun
  • Toh-Ming Lu
  • Hua Zhou
  • Esther Wertz
  • Ravishankar Sundararaman
  • Jian Shi

Detail(s)

Original languageEnglish
Article numbereaay4213
Journal / PublicationScience Advances
Volume6
Issue number9
Online published28 Feb 2020
Publication statusPublished - Feb 2020
Externally publishedYes

Link(s)

Abstract

Spin and valley degrees of freedom in materials without inversion symmetry promise previously unknown device functionalities, such as spin-valleytronics. Control of material symmetry with electric fields (ferroelectricity), while breaking additional symmetries, including mirror symmetry, could yield phenomena where chirality, spin, valley, and crystal potential are strongly coupled. Here we report the synthesis of a halide perovskite semiconductor that is simultaneously photoferroelectricity switchable and chiral. Spectroscopic and structural analysis, and first-principles calculations, determine the material to be a previously unknown low-dimensional hybrid perovskite (R)-(−)-1-cyclohexylethylammonium/(S)-(+)-1 cyclohexylethylammonium) PbI3. Optical and electrical measurements characterize its semiconducting, ferroelectric, switchable pyroelectricity and switchable photoferroelectric properties. Temperature dependent structural, dielectric and transport measurements reveal a ferroelectric-paraelectric phase transition. Circular dichroism spectroscopy confirms its chirality. The development of a material with such a combination of these properties will facilitate the exploration of phenomena such as electric field and chiral enantiomer–dependent Rashba-Dresselhaus splitting and circular photogalvanic effects.

Citation Format(s)

A chiral switchable photovoltaic ferroelectric 1D perovskite. / Hu, Yang; Florio, Fred; Chen, Zhizhong et al.
In: Science Advances, Vol. 6, No. 9, eaay4213, 02.2020.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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