Properties of Excitons and Photogenerated Charge Carriers in Metal Halide Perovskites

2019 ◽  
Vol 31 (47) ◽  
pp. 1806671 ◽  
Author(s):  
Ying Jiang ◽  
Xiao Wang ◽  
Anlian Pan
Keyword(s):  
Metal Halide ◽  
Charge Carriers ◽  
Halide Perovskites

Photoinduced Dynamics of Charge Carriers in Metal Halide Perovskites from an Atomistic Perspective

2020 ◽  
Vol 11 (17) ◽  
pp. 7066-7082
Author(s):  
Lu Qiao ◽  
Wei-Hai Fang ◽  
Run Long ◽  
Oleg V. Prezhdo
Keyword(s):  
Metal Halide ◽  
Charge Carriers ◽  
Halide Perovskites

scholarly journals Hot carrier solar cells and the potential of perovskites for breaking the Shockley–Queisser limit

2019 ◽  
Vol 7 (9) ◽  
pp. 2471-2486 ◽  
Author(s):  
Simon Kahmann ◽  
Maria A. Loi
Keyword(s):  
Solar Cells ◽  
Metal Halide ◽  
Charge Carriers ◽  
Hot Carrier ◽  
Halide Perovskites

We review the cooling of charge carriers in metal halide perovskites for the use in hot carrier solar cells.

scholarly journals Ab initio nonadiabatic molecular dynamics of charge carriers in metal halide perovskites

Nanoscale ◽  
2021 ◽  
Author(s):  
Wei Li ◽  
Yalan She ◽  
Andrey S. Vasenko ◽  
Oleg V. Prezhdo
Keyword(s):  
Molecular Dynamics ◽  
Time Domain ◽  
Quantum Dynamics ◽  
Density Functional ◽  
Metal Halide ◽  
Charge Carriers ◽  
Functional Theory ◽  
Nonadiabatic Molecular Dynamics ◽  
Halide Perovskites ◽  
Molecular Semiconductors

Atomistic details govern quantum dynamics of charge carriers in metal halide perovskites, which exhibit properties of solid state and molecular semiconductors, as revealed by time-domain density functional theory and nonadiabatic molecular dynamics.

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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