Cage-Incorporation of Secondary Amine in Ruddlesden-Popper 2D Hybrid Perovskite with Strong Photoconductivity and Polarization Response

Author(s):  
beibei wang ◽  
Huaixi Chen ◽  
Wuqian Guo ◽  
Yi Liu ◽  
Shiguo Han ◽  
...  

Two-dimensional (2D) Ruddlesden-Popper hybrid perovskites (RPHPs) have shown enormous potentials for photoelectric applications, owing to their advantages of structural diversity and unique physical properties. Despite extensive studies, the cage-incorporation of...

2020 ◽  
Vol 8 (4) ◽  
pp. 1875-1886 ◽  
Author(s):  
Ambra Pisanu ◽  
Mauro Coduri ◽  
Marta Morana ◽  
Yasemin O. Ciftci ◽  
Aurora Rizzo ◽  
...  

The role of halide substitution in a lead-free 2D hybrid perovskite is studied on the BZA2SnX4 (BZA = benzylammonium; X = Cl, Br, I) system, by reporting the two novel compositions BZA2SnBr4 and BZA2SnCl4.


2020 ◽  
Vol 8 (37) ◽  
pp. 12848-12853
Author(s):  
Tao Yang ◽  
Yaobin Li ◽  
Shiguo Han ◽  
Yi Liu ◽  
Zhiyun Xu ◽  
...  

We present a new 2D hybrid perovskite by alloying secondary dimethylammonium cation as the “perovskiter” into the PbI3 framework, which shows the strong in-plane photoresponses.


Author(s):  
Yu Ma ◽  
Jiaqi Wang ◽  
Yi Liu ◽  
Shiguo Han ◽  
Yaobin Li ◽  
...  

Self-powered photodetection with an extremely low detection limit of 82 nW cm−2 is achieved in a 2D hybrid perovskite ferroelectric. This result sheds light on future advances of ferroelectrics toward smart optoelectronic device applications.


Author(s):  
Xiangxin Tian ◽  
Zhaoxing Hu ◽  
Zeliang Gao ◽  
Yongzhuan Zhang ◽  
Chuanming Li ◽  
...  

Quasi two-dimensional Ruddlesden-Popper perovskites (RPPs) have drawn unprecedented research interests for their superior long-term environmental stability, abundant structural diversity, and favorable performance in energy-related application scenario. Rational molecular design strategies,...


2019 ◽  
Vol 75 (3) ◽  
pp. 354-358 ◽  
Author(s):  
Ling Cheng ◽  
Yingjie Cao

Recently, with the prevalence of `perovskite fever', organic–inorganic hybrid perovskites (OHPs) have attracted intense attention due to their remarkable structural variability and highly tunable properties. In particular, the optical and electrical properties of organic–inorganic hybrid lead halides are typical of the OHP family. Besides, although three-dimensional hybrid perovskites, such as [CH3NH3]PbX 3 (X = Cl, Br or I), have been reported, the development of new organic–inorganic hybrid semiconductors is still an area in urgent need of exploration. Here, an organic–inorganic hybrid lead halide perovskite is reported, namely poly[(2-azaniumylethyl)trimethylphosphanium [tetra-μ-bromido-plumbate(II)]], {(C5H16NP)[PbBr4]} n , in which an organic cation is embedded in inorganic two-dimensional (2D) mesh layers to produce a sandwich structure. This unique sandwich 2D hybrid perovskite material shows an indirect band gap of ∼2.700 eV. The properties of this compound as a semiconductor are demonstrated by a series of optical characterizations and indicate potential applications for optical devices.


2019 ◽  
Vol 10 (41) ◽  
pp. 5578-5583 ◽  
Author(s):  
Takumitsu Kida ◽  
Ryo Tanaka ◽  
Koh-hei Nitta ◽  
Takeshi Shiono

The increase of aggregation number in a star-shaped cyclic olefin copolymer was succeeded by using a triazine-based secondary amine, which caused a drastic change in physical properties without changing the thermal properties.


Author(s):  
Xiaoqiu Guo ◽  
Ruixin Yu ◽  
Jingwen Jiang ◽  
Zhuang Ma ◽  
Xiuwen Zhang

Topological insulation is widely predicted in two-dimensional (2D) materials realized by epitaxial growth or van der Waals (vdW) exfoliation. Such 2D topological insulators (TI’s) host many interesting physical properties such...


2014 ◽  
Vol 53 (13) ◽  
pp. 7028-7039 ◽  
Author(s):  
Matteo Atzori ◽  
Flavia Pop ◽  
Pascale Auban-Senzier ◽  
Carlos J. Gómez-García ◽  
Enric Canadell ◽  
...  

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