A Rapid and Robust Light-and-Solution-Triggered In Situ Crafting of Organic Passivating Membrane over Metal Halide Perovskites for Markedly Improved Stability and Photocatalysis

Nano Letters ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1643-1650
Author(s):  
Fangyan Liu ◽  
Mengye Wang ◽  
Xiaolong Liu ◽  
Biao Wang ◽  
Caifu Li ◽  
...  
Keyword(s):  
Metal Halide ◽  
Improved Stability ◽  
Halide Perovskites

scholarly journals Dynamics of Antisolvent Processed Hybrid Metal Halide Perovskites Studied by In Situ Photoluminescence and Its Influence on Optoelectronic Properties

2020 ◽  
Vol 3 (3) ◽  
pp. 2386-2393 ◽  
Author(s):  
Tze-Bin Song ◽  
Zhenghao Yuan ◽  
Finn Babbe ◽  
David P. Nenon ◽  
Erkan Aydin ◽  
...  
Keyword(s):  
Optoelectronic Properties ◽  
Metal Halide ◽  
Halide Perovskites

In Situ Observation of Crystallization Dynamics and Grain Orientation in Sequential Deposition of Metal Halide Perovskites

2019 ◽  
Vol 29 (35) ◽  
pp. 1902319 ◽  
Author(s):  
Ke Meng ◽  
Xiao Wang ◽  
Qiaofei Xu ◽  
Zhimin Li ◽  
Zhou Liu ◽  
...  
Keyword(s):  
Grain Orientation ◽  
Metal Halide ◽  
In Situ Observation ◽  
Sequential Deposition ◽  
Halide Perovskites ◽  
Crystallization Dynamics

Phase Control and In Situ Passivation of Quasi-2D Metal Halide Perovskites for Spectrally Stable Blue Light-Emitting Diodes

2020 ◽  
Vol 12 (40) ◽  
pp. 45056-45063
Author(s):  
Michael Worku ◽  
Qingquan He ◽  
Liang-jin Xu ◽  
Jisook Hong ◽  
Ruo Xi Yang ◽  
...  
Keyword(s):  
Blue Light ◽  
Light Emitting Diodes ◽  
Phase Control ◽  
Metal Halide ◽  
Light Emitting ◽  
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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