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.

scholarly journals Photocatalytic and Photoelectrochemical Degradation of Organic Compounds with All-Inorganic Metal Halide Perovskite Quantum Dots

2019 ◽  
Vol 10 (3) ◽  
pp. 630-636 ◽  
Author(s):  
Drialys Cardenas-Morcoso ◽  
Andrés F. Gualdrón-Reyes ◽  
Ana Beatriz Ferreira Vitoreti ◽  
Miguel García-Tecedor ◽  
Seog Joon Yoon ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Organic Compounds ◽  
Metal Halide ◽  
Metal Halide Perovskite ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite

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>

Metal halide perovskite quantum dots for amphiprotic bio-imaging

2022 ◽  
Vol 452 ◽  
pp. 214313
Author(s):  
Huiwang Lian ◽  
Yang Li ◽  
S. Saravanakumar ◽  
Huan Jiang ◽  
Zhanjun Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Metal Halide ◽  
Metal Halide Perovskite ◽  
Perovskite Quantum Dots ◽  
Bio Imaging ◽  
Halide Perovskite

scholarly journals Exploring the physics of cesium lead halide perovskites quantum dots via Bayesian inference of the photoluminescence spectra in automated experiment

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Amanda Heimbrook ◽  
Kate Higgins ◽  
Sergei V. Kalinin ◽  
Mahshid Ahmadi
Keyword(s):  
Quantum Dots ◽  
Bayesian Inference ◽  
Metal Halide ◽  
Automated Synthesis ◽  
Metal Halide Perovskite ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Bayesian Inference Framework ◽  
Automated Platform ◽  
Lead Halide

Abstract The unique optoelectronic properties of metal halide perovskite quantum dots (QDs) make them promising candidates for applications in light-emitting diodes (LEDs), scintillators, and other photonic devices. The automated micropipetting synthesis platform equipped with an optical reader enables the opportunity for high throughput synthesis and photoluminescent (PL) characterization of metal halide perovskite QDs for the first time. Here, we explore the compositional dependence of the PL behavior and stability of the combinatorial library of cesium lead halide (CsPbX3) perovskites QDs via the automated platform. To study the stability of synthesized QDs in the binary and ternary configurations, we study the time-dependent PL properties using previously developed machine learning analysis. To systematically explore the PL behavior in the ternary CsPbX3 QDs system, we introduce the Bayesian inference framework that allows the probabilistic fit of multiple models to the PL data and establishes both optimal model and model parameter robustly. Furthermore, these behaviors can be used as a control parameter for the navigation of the multidimensional compositional spaces in automated synthesis. This analysis shows the nonuniformity of the PL peak behavior in the ternary CsPbX3 QDs system. Further, the analysis confirms narrow size distribution and good quality of CsPbBr3 QDs alloyed with low concentrations of iodide and chloride. We note that Bayesian Inference fit parameters can be further used as a control signal for navigation of the chemical spaces in automated synthesis.

Flow Synthesis of Metal Halide Perovskite Quantum Dots: From Rapid Parameter Space Mapping to AI-Guided Modular Manufacturing

Matter ◽  
2020 ◽  
Vol 3 (4) ◽  
pp. 1053-1086
Author(s):  
Kameel Abdel-Latif ◽  
Fazel Bateni ◽  
Steven Crouse ◽  
Milad Abolhasani
Keyword(s):  
Quantum Dots ◽  
Parameter Space ◽  
Space Mapping ◽  
Metal Halide ◽  
Flow Synthesis ◽  
Metal Halide Perovskite ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite

High Efficiency Luminescent Solar Concentrator based on Organo‐Metal Halide Perovskite Quantum Dots with Plasmon Enhancement

2021 ◽  
pp. 2100754
Author(s):  
Benaz Mendewala ◽  
Evan T. Vickers ◽  
Katerina Nikolaidou ◽  
Albert DiBenedetto ◽  
William G. Delmas ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Efficiency ◽  
Metal Halide ◽  
Solar Concentrator ◽  
Luminescent Solar Concentrator ◽  
Metal Halide Perovskite ◽  
Plasmon Enhancement ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite

Tuning optical properties in CsPbBr3 quantum dot-doped glass by modulation of network topology

2021 ◽  
Author(s):  
Zhousu Xu ◽  
Tao Chen ◽  
Duoduo Zhang ◽  
Guojun Zheng ◽  
Zhuo Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Quantum Dot ◽  
Network Topology ◽  
Scientific Research ◽  
Metal Halide ◽  
Metal Halide Perovskite ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Doped Glass

All inorganic metal halide perovskite quantum dots (QDs) exhibit excellent optical properties promising for diverse applications, while their inherent frangibility remains an enormous challenge for both scientific research and practical...

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>

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