g-C3N4/metal halide perovskite composites as photocatalysts for singlet oxygen generation processes for the preparation of various oxidized synthons

2021 ◽  
Author(s):  
Marco Corti ◽  
Rossella Chiara ◽  
Lidia Romani ◽  
Barbara Mannucci ◽  
Lorenzo Malavasi ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Metal Halide ◽  
Oxidation Reactions ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Metal Halide Perovskite ◽  
Halide Perovskite ◽  
Organic Oxidation

Singlet oxygen generated by g-C3N4/metal halide perovskite composites as photocatalysts in organic oxidation reactions.

scholarly journals Organo Metal Halide Perovskites Effective Ly Photosensitize the Production of Singlet Oxygen (1Δg)

2019 ◽  
Author(s):  
XIan-Fu Zhang ◽  
Baomin Xu
Keyword(s):  
Quantum Dots ◽  
Singlet Oxygen ◽  
High Performance ◽  
Metal Halide ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Metal Halide Perovskite ◽  
Halide Perovskites ◽  
New Applications ◽  
Triplet Excitons

<p>Metal halide perovskite (MHP) materials are under extensive examination for various high performance optoelectronic applications, but their photosensitizing utilization for singlet oxygen generation has not been explored. Based on the observed characteristic NIR phosphorescence of singlet oxygen and the photosensitized decomposition of a specific singlet oxygen chemical trapper (diphenylisobenzofuran), we show herby that MAPbBr<sub>3</sub> quantum dots can significantly generate singlet oxygen with the quantum yield up to 0.34, which is the highest among nano semiconductor and nano metal material types of singlet oxygen photosensitizers. Further more, MAPbBr<sub>3</sub> quantum dots show good stability towards singlet oxygen. The mechanism of MHP as a singlet oxygen photosensitizer is also suggested to be due to triplet excitons. This finding expands new applications of MHPs in PDT, antiviral and antibacterial treatments, and pharmaceutical industry.</p>

scholarly journals Organo Metal Halide Perovskites Effective Ly Photosensitize the Production of Singlet Oxygen (1Δg)

2019 ◽  
Author(s):  
XIan-Fu Zhang ◽  
Baomin Xu
Keyword(s):  
Quantum Dots ◽  
Singlet Oxygen ◽  
High Performance ◽  
Metal Halide ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Metal Halide Perovskite ◽  
Halide Perovskites ◽  
New Applications ◽  
Triplet Excitons

<p>Metal halide perovskite (MHP) materials are under extensive examination for various high performance optoelectronic applications, but their photosensitizing utilization for singlet oxygen generation has not been explored. Based on the observed characteristic NIR phosphorescence of singlet oxygen and the photosensitized decomposition of a specific singlet oxygen chemical trapper (diphenylisobenzofuran), we show herby that MAPbBr<sub>3</sub> quantum dots can significantly generate singlet oxygen with the quantum yield up to 0.34, which is the highest among nano semiconductor and nano metal material types of singlet oxygen photosensitizers. Further more, MAPbBr<sub>3</sub> quantum dots show good stability towards singlet oxygen. The mechanism of MHP as a singlet oxygen photosensitizer is also suggested to be due to triplet excitons. This finding expands new applications of MHPs in PDT, antiviral and antibacterial treatments, and pharmaceutical industry.</p>

Organo metal halide perovskites effectively photosensitize the production of singlet oxygen (1Δg)

2019 ◽  
Vol 55 (87) ◽  
pp. 13100-13103 ◽  
Author(s):  
Xian-Fu Zhang ◽  
Baomin Xu
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Singlet Oxygen ◽  
Metal Halide ◽  
Metal Halide Perovskite ◽  
Perovskite Quantum Dots ◽  
Halide Perovskites ◽  
Halide Perovskite

Metal halide perovskite quantum dots effectively generate singlet oxygen with a quantum yield of 0.34, the highest among nano semiconductor/nano metal photosensitizers.

Hollow Metal Halide Perovskite Nanocrystals with Efficient Blue Emissions

2019 ◽  
Author(s):  
Michael Worku ◽  
Yu Tian ◽  
Chenkun Zhou ◽  
Haoran Lin ◽  
Maya Chaaban ◽  
...  
Keyword(s):  
Precursor Solution ◽  
Visible Spectral Region ◽  
Metal Halide ◽  
Synthetic Control ◽  
Perovskite Nanocrystals ◽  
Highly Efficient ◽  
Quantum Confinement Effects ◽  
Metal Halide Perovskite ◽  
Lead Bromide ◽  
Halide Perovskite

Metal halide perovskite nanocrystals (NCs) have emerged as a new generation light emitting materials with narrow emissions and high photoluminescence quantum efficiencies (PLQEs). Various types of perovskite NCs, e.g. platelets, wires, and cubes, have been discovered to exhibit tunable emissions across the whole visible spectral region. Despite remarkable advances in the field of metal halide perovskite NCs over the last few years, many nanostructures in inorganic NCs have yet been realized in metal halide perovskites and producing highly efficient blue emitting perovskite NCs remains challenging and of great interest. Here we report for the first time the discovery of highly efficient blue emitting cesium lead bromide perovskite (CsPbBr3) NCs with hollow structures. By facile solution processing of cesium lead bromide perovskite precursor solution containing additional ethylenediammonium bromide and sodium bromide, in-situ formation of hollow CsPbBr3 NCs with controlled particle and pore sizes is realized. Synthetic control of hollow nanostructures with quantum confinement effects results in color tuning of CsPbBr3 NCs from green to blue with high PLQEs of up to 81 %.<br><div><br></div>

Recent progress on defect modulation for highly efficient metal halide perovskite light-emitting diodes

2021 ◽  
Vol 22 ◽  
pp. 100946
Author(s):  
Le Ma ◽  
Boning Han ◽  
Fengjuan Zhang ◽  
Leimeng Xu ◽  
Tao Fang ◽  
...  
Keyword(s):  
Recent Progress ◽  
Light Emitting Diodes ◽  
Metal Halide ◽  
Light Emitting ◽  
Highly Efficient ◽  
Metal Halide Perovskite ◽  
Halide Perovskite

Core/Shell Metal Halide Perovskite Nanocrystals for Optoelectronic Applications

2021 ◽  
pp. 2100438
Author(s):  
Chengxi Zhang ◽  
Jiayi Chen ◽  
Lingmei Kong ◽  
Lin Wang ◽  
Sheng Wang ◽  
...  
Keyword(s):  
Metal Halide ◽  
Core Shell ◽  
Perovskite Nanocrystals ◽  
Metal Halide Perovskite ◽  
Halide Perovskite ◽  
Optoelectronic Applications

scholarly journals Author Correction: Controllable deposition of organic metal halide perovskite films with wafer-scale uniformity by single source flash evaporation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Woocheol Lee ◽  
Jonghoon Lee ◽  
Hyeon-Dong Lee ◽  
Junwoo Kim ◽  
Heebeom Ahn ◽  
...  
Keyword(s):  
Metal Halide ◽  
Single Source ◽  
Organic Metal ◽  
Flash Evaporation ◽  
Wafer Scale ◽  
Metal Halide Perovskite ◽  
Halide Perovskite

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

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