Metal halide perovskites under compression

2019 ◽  
Vol 7 (27) ◽  
pp. 16089-16108 ◽  
Author(s):  
Qian Li ◽  
Liming Zhang ◽  
Zhongwei Chen ◽  
Zewei Quan
Keyword(s):  
High Pressure ◽  
Photovoltaic Performance ◽  
Metal Halide ◽  
Halide Perovskites

High pressure engineering of metal halide perovskites, revealing the structural and photovoltaic performance contributions of different components.

Structural regulation and optical behavior of three-dimensional metal halide perovskites under pressure

2020 ◽  
Vol 8 (37) ◽  
pp. 12755-12767
Author(s):  
Yue Shi ◽  
Yu Zhou ◽  
Zhiwei Ma ◽  
Guanjun Xiao ◽  
Kai Wang ◽  
...  
Keyword(s):  
High Pressure ◽  
Three Dimensional ◽  
Metal Halide ◽  
Structural Regulation ◽  
Halide Perovskites ◽  
Optical Behavior

The high-pressure behaviors of three-dimensional (3D) metal halide perovskites (MHPs) have been summarized in this “scientific dictionary”.

scholarly journals Origin of vertical orientation in two-dimensional metal halide perovskites and its effect on photovoltaic performance

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Alexander Z. Chen ◽  
Michelle Shiu ◽  
Jennifer H. Ma ◽  
Matthew R. Alpert ◽  
Depei Zhang ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Metal Halide ◽  
Two Dimensional ◽  
Vertical Orientation ◽  
Halide Perovskites

Lead-Free Metal Halide Perovskite Nanocrystals for Photocatalysis in Water

2019 ◽  
Author(s):  
Subhajit Bhattacharjee ◽  
Sonu Pratap Chaudhary ◽  
Sayan Bhattacharyya
Keyword(s):  
Charge Carrier ◽  
Wide Spectrum ◽  
Real Life ◽  
Metal Halide ◽  
Lead Free ◽  
Water Medium ◽  
Type I ◽  
Type Ii ◽  
Perovskite Layer ◽  
Halide Perovskites

<p>Metal halide perovskites with high absorption coefficient, direct generation of free charge carriers, excellent ambipolar charge carrier transport properties, point-defect tolerance, compositional versatility and solution processability are potentially transforming the photovoltaics and optoelectronics industries. However their limited ambient stability, particularly those of iodide perovskites, obscures their use as photocatalysts especially in aqueous medium. In an unprecedented approach we have exploited the photo-absorption property of the less toxic lead-free Cs<sub>3</sub>Bi<sub>2</sub>X<sub>9 </sub>(X = Br, I) nanocrystals (NCs) to catalyse the degradation of water pollutant organic dye, methylene blue (MB) in presence of visible light at room temperature. After providing a proof-of-concept with bromide perovskites in isopropanol, the perovskites are employed as photocatalysts in water medium by designing perovskite/Ag<sub>2</sub>S and perovskite/TiO<sub>2 </sub>composite systems, with Type I (or quasi Type II) and Type II alignments, respectively. Ag<sub>2</sub>S and TiO<sub>2</sub> coatings decelerate penetration of water into the perovskite layer while facilitating charge carrier extraction. With a minimal NC loading, Cs<sub>3</sub>Bi<sub>2</sub>I<sub>9</sub>/Ag<sub>2</sub>S degrades ~90% MB within an hour. Our approach has the potential to unravel the photocatalytic properties of metal halide perovskites for a wide spectrum of real-life applications. </p>

Epitaxial Metal Halide Perovskites by InkJet Printing

2019 ◽  
Author(s):  
Mykhailo Sytnyk ◽  
Ole Lytken ◽  
Tim Freund ◽  
Wolfgang Heiss ◽  
Christina Harreiss ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
Metal Halide ◽  
Halide Perovskites
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