Ferroelectricity and Thermochromism in a 2D Dion-Jacobson Organic-Inorganic Hybrid Perovskite

Wen-Cheng Qiao; Hongwei Qiao; Xue Lu Wang; Haojie Xu; Fanchen Xu; Zhihua Sun; Hongchang Gao; Ye-Feng Yao

doi:10.1002/smll.202310529

Ferroelectricity and Thermochromism in a 2D Dion-Jacobson Organic-Inorganic Hybrid Perovskite

Small. 2023 Dec 26:e2310529. doi: 10.1002/smll.202310529. Online ahead of print.

Authors

Wen-Cheng Qiao¹, Hongwei Qiao², Xue Lu Wang², Haojie Xu³, Fanchen Xu⁴, Zhihua Sun³, Hongchang Gao^{1

4}, Ye-Feng Yao²

Affiliations

¹ Oujiang Laboratory, Innovation Academy of Testing Technology, Scientific Research Center, Wenzhou Medical University, Wenzhou, 325035, P. R. China.
² Physics Department and Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, P. R. China.
³ State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
⁴ Institute of Metabonomics and Medical NMR, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, P. R. China.

PMID: 38148294
DOI: 10.1002/smll.202310529

Abstract

2D organic-inorganic hybrid perovskites (OIHPs) have become one of the hottest research topics due to their excellent environmental stability and unique optoelectronic properties. Recently, the ferroelectricity and thermochromism of 2D OIHPs have attracted increasing interests. Integrating ferroelectricity and thermochromism into perovskites can significantly promote the development of multichannel intelligent devices. Here, a novel 2D Dion-Jacobson OIHP of the formula (3AMP)PbI₄ (where 3AMP is 3-(aminomethyl)pyridinium) is reported, which has a remarkable spontaneous polarization value (Ps) of 15.6 µC cm^-2 and interesting thermochromism. As far it is known, such a large Ps value is the highest for 2D OIHPs recorded so far. These findings will inspire further exploration and application of multifunctional perovskites.

Keywords: 2D perovskite; Dion-Jacobson; ferroelectricity; thermochromism.

Abstract

Grants and funding