Bilayered Hybrid Perovskite Ferroelectric with Giant Two-Photon Absorption

被引：216

作者：

Li, Lina ^{[1
]}

Shang, Xiaoying ^{[2
,3
]}

Wang, Sasa ^{[1
]}

Dong, Ningning ^{[4
]}

Ji, Chengmin ^{[1
]}

Chen, Xueyuan ^{[2
,3
]}

Zhao, Sangen ^{[1
]}

Wang, Jun ^{[4
]}

Sun, Zhihua ^{[1
]}

Hong, Maochun ^{[1
]}

Luo, Junhua ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China

[3] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China

[4] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2018年 / 140卷 / 22期

基金：

中国国家自然科学基金;

关键词：

NONLINEAR-OPTICAL RESPONSE; THIN-FILMS; HALIDE;

D O I：

10.1021/jacs.8b04014

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Perovskite ferroelectrics with prominent nonlinear optical absorption have attracted great attention in the field of photonics. However, they are traditionally dominated by inorganic oxides and exhibit relatively small nonlinear optical absorption coefficients, which hinder their further applications. Herein, we report a new organic inorganic hybrid bilayered perovskite ferroelectric, (C4H9NH3)(2)(NH2CHNH2)Pb2Br7 (1), showing an above-room-temperature Curie temperature (similar to 322 K) and notable spontaneous polarization (similar to 3.8 mu C cm(-2)). Significantly, the unique quantum-well structure of 1 results in intriguing two-photon absorption properties with a giant nonlinear optical absorption coefficient as high as 5.76 X 10(3) cm GW(-1), which is almost two-orders of magnitude larger than those of mostly traditional all inorganic perovskite ferroelectrics. To our best knowledge, 1 is the first example of hybrid ferroelectrics with giant two-photon absorption coefficient. The mechanisms for ferroelectric and two-photon absorption are revealed. This work will shed light on the design of new ferroelectrics with two-photon absorption

引用

页码：6806 / 6809

页数：4

共 46 条

[1] PEROVSKITE PHYSICS Extremely efficient internal exciton dissociation through edge states in layered 2D perovskites [J].