Two-Dimensional Organic-Inorganic Hybrid Rare-Earth Double Perovskite Ferroelectrics

被引：191

作者：

Shi, Chao ^{[1
]}

Ye, Le ^{[1
]}

Gong, Zhi-Xin ^{[1
]}

Ma, Jia-Jun ^{[1
]}

Wang, Qin-Wen ^{[1
]}

Jiang, Jia-Ying ^{[1
]}

Hua, Miao-Miao ^{[1
]}

Wang, Chang-Feng ^{[1
]}

Yu, Hui ^{[1
]}

Zhang, Yi ^{[1
]}

Ye, Heng-Yun ^{[1
]}

机构：

[1] Jiangxi Univ Sci & Technol, Chaot Matter Sci Res Ctr, Dept Mat Met & Chem, Ganzhou 341000, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2020年 / 142卷 / 01期

基金：

中国国家自然科学基金;

关键词：

MOLECULAR PEROVSKITE; CENTER-DOT; PIEZOELECTRICITY; CRYSTALS;

D O I：

10.1021/jacs.9b11697

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

As a major branch of hybrid perovskites, two-dimensional (2D) hybrid double perovskites are expected to be ideal systems for exploring novel ferroelectric properties, because they can accommodate a variety of organic cations and allow diverse combinations of different metal elements. However, no 2D hybrid double perovskite ferroelectric has been reported since the discovery of halide double perovskites in the 1930s. Based on trivalent rare-earth ions and chiral organic cations, we have designed a new family of 2D rare-earth double perovskite ferroelectrics, A4M(I)M(III)(NO3)(8), where A is the organic cation, M-I is the alkaline metal or ammonium ion, and M-III is the rare-earth ion. This is the first time that ferroelectricity is realized in 2D hybrid double perovskite systems. These ferroelectrics have achieved high-temperature ferroelectricity and photoluminescent properties. By varying the rare-earth ion, variable photoluminescent properties can be achieved. The results reveal that the 2D rare-earth double perovskite systems provide a promising platform for achieving multifunctional ferroelectricity.

引用

页码：545 / 551

页数：7

共 40 条

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