Issue 7, 2023

A nickel(ii)-based one-dimensional organic–inorganic halide perovskite ferroelectric with the highest Curie temperature

Abstract

Organic–inorganic halide perovskites (OIHPs) are very eye-catching due to their chemical tunability and rich physical properties such as ferroelectricity, magnetism, photovoltaic properties and photoluminescence. However, no nickel-based OIHP ferroelectrics have been reported so far. Here, we designed an ABX3 OIHP ferroelectric (3-pyrrolinium)NiCl3, where the 3-pyrrolinium cations are located on the voids surrounded by one-dimensional chains composed of NiCl6-face-sharing octahedra via hydrogen bonding interactions. Such a unique structure enables the (3-pyrrolinium)NiCl3 with a high spontaneous polarization (Ps) of 5.8 μC cm−2 and a high Curie temperature (Tc) of 428 K, realizing dramatic enhancement of 112 and 52 K compared to its isostructural (3-pyrrolinium)MCl3 (M = Cd, Mn). To our knowledge, remarkably, (3-pyrrolinium)NiCl3 should be the first case of nickel(II)-based OIHP ferroelectric to date, and its Tc of 428 K (35 K above that of BaTiO3) is the highest among all reported one-dimensional OIHP ferroelectrics. This work offers a new structural building block for enriching the family of OIHP structures and will inspire the further exploration of new nickel(II)-based OIHP ferroelectrics.

Graphical abstract: A nickel(ii)-based one-dimensional organic–inorganic halide perovskite ferroelectric with the highest Curie temperature

Supplementary files

Article information

Article type
Edge Article
Submitted
23 okt. 2022
Accepted
17 jan. 2023
First published
19 jan. 2023
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2023,14, 1781-1786

A nickel(II)-based one-dimensional organic–inorganic halide perovskite ferroelectric with the highest Curie temperature

H. Ni, L. Ye, P. Zhuge, B. Hu, J. Lou, C. Su, Z. Zhang, L. Xie, D. Fu and Y. Zhang, Chem. Sci., 2023, 14, 1781 DOI: 10.1039/D2SC05857J

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