Enhanced random lasing action of metal halide perovskites via in-situ AgI diffusion

2021 ◽  
Author(s):  
Tsung Sheng Kao
Keyword(s):  
Metal Halide ◽  
Random Lasing ◽  
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

scholarly journals Room-temperature random lasing of metal-halide perovskites via morphology-controlled synthesis

2020 ◽  
Vol 2 (12) ◽  
pp. 5833-5840
Author(s):  
Yu-Heng Hong ◽  
Tsung Sheng Kao
Keyword(s):  
Room Temperature ◽  
Metal Halide ◽  
Controlled Synthesis ◽  
Film Morphology ◽  
Optical Performance ◽  
Random Lasing ◽  
Structural Configuration ◽  
Metal Halide Perovskite ◽  
Halide Perovskites ◽  
Halide Perovskite

Film morphology and the corresponding structural configuration can profoundly affect the optical performance, especially the random lasing action in organic–inorganic metal-halide perovskite thin films.

2D/3D Heterostructure Derived from Phase Transformation of 0D Perovskite for Random Lasing Applications with Remarkably improved Water Resistance

Nanoscale ◽  
2021 ◽  
Author(s):  
Xun Sun ◽  
Xinmin Shi ◽  
Weiguang Zhang ◽  
Baoyuan Xu ◽  
Zhenhua Gao ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Water Resistance ◽  
Metal Halide ◽  
Random Lasing ◽  
Halide Perovskites

Phase transformation between metal halide perovskites serves as a promising route to create new optoelectronic functionality. Nevertheless, such transformation reported thus far mainly involves transition between two individual phases (e.g.,...

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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