Confining perovskite quantum dots in pores of covalent organic framework: quantum confinement- and passivation-enhanced light-harvesting and photocatalysis

2021 ◽  
Author(s):  
Genping Meng ◽  
Liping Zhen ◽  
Shihao Sun ◽  
Jun Hai ◽  
Zefan Zhang ◽  
...  
Keyword(s):  
Quantum Confinement ◽  
Light Harvesting ◽  
High Light ◽  
Artificial Light ◽  
Absorption Coefficients ◽  
Harvesting Systems ◽  
Perovskite Quantum Dots ◽  
Halide Perovskites ◽  
Lead Halide ◽  
Significant Attention

All-inorganic lead halide perovskites have attracted significant attention in artificial light-harvesting systems (ALHSs) due to their superior emission tunability and high light-absorption coefficients. However, their relatively low photoluminescence quantum yield...

Efficient artificial light-harvesting systems based on aggregation-induced emission constructed in supramolecular gels

Soft Matter ◽  
2021 ◽  
Author(s):  
Xinxian Ma ◽  
bo qiao ◽  
Jinlong Yue ◽  
JingJing Yu ◽  
yutao geng ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Rhodamine B ◽  
Fluorescent Dyes ◽  
Light Harvesting ◽  
Artificial Light ◽  
Efficient Energy Transfer ◽  
Aggregation Induced Emission ◽  
Efficient Energy ◽  
Harvesting Systems ◽  
Acyl Hydrazone

Based on a new designed acyl hydrazone gelator (G2), we developed an efficient energy transfer supramolecular organogel in glycol with two different hydrophobic fluorescent dyes rhodamine B (RhB) and acridine...

Artificial light-harvesting systems based on macrocycles-assisted supramolecular assembly in aqueous media

2021 ◽  
Author(s):  
Kaiya Wang ◽  
Krishnasamy Velmurugan ◽  
Bin Li ◽  
Xiao-Yu Hu
Keyword(s):  
Light Harvesting ◽  
Aqueous Media ◽  
Supramolecular Assembly ◽  
Routine Activities ◽  
Chemical Energy ◽  
Artificial Light ◽  
Natural Systems ◽  
Harvesting Systems

Light-harvesting, which converts sunlight into chemical energy by natural systems such as plants, bacteria, is one of the most universal routine activities in nature. So far, various artificial light-harvesting systems...

Precise Control of Quantum Confinement in Cesium Lead Halide Perovskite Quantum Dots via Thermodynamic Equilibrium

Nano Letters ◽  
2018 ◽  
Vol 18 (6) ◽  
pp. 3716-3722 ◽  
Author(s):  
Yitong Dong ◽  
Tian Qiao ◽  
Doyun Kim ◽  
David Parobek ◽  
Daniel Rossi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Thermodynamic Equilibrium ◽  
Quantum Confinement ◽  
Precise Control ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Lead Halide

Triarylmethanolation as a versatile strategy for the conversion of PAHs into amorphization-induced emission luminogens for extremely sensitive explosive detection and fabrication of artificial light-harvesting systems

2020 ◽  
Vol 4 (8) ◽  
pp. 2435-2442
Author(s):  
Min Su ◽  
Ya-Nan Jing ◽  
Hongli Bao ◽  
Wen-Ming Wan
Keyword(s):  
Light Harvesting ◽  
Molecular Design ◽  
Explosive Detection ◽  
Artificial Light ◽  
Luminescent Materials ◽  
Harvesting Systems

A triarylmethanolation strategy has been reported for the molecular design of luminescent materials with amorphization-induced emission, which exhibit sensitive explosive detection and aid in the fabrication of artificial light-harvesting systems.

scholarly journals Inorganic, Organic, and Perovskite Halides with Nanotechnology for High–Light Yield X- and γ-ray Scintillators

Crystals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 88 ◽  
Author(s):  
Francesco Maddalena ◽  
Liliana Tjahjana ◽  
Aozhen Xie ◽  
Arramel ◽  
Shuwen Zeng ◽  
...  
Keyword(s):  
High Energy Physics ◽  
Low Cost ◽  
Light Yield ◽  
Fast Response ◽  
High Energy ◽  
High Light ◽  
Scintillation Light ◽  
High Light Yield ◽  
Halide Perovskites ◽  
Lead Halide

Trends in scintillators that are used in many applications, such as medical imaging, security, oil-logging, high energy physics and non-destructive inspections are reviewed. First, we address traditional inorganic and organic scintillators with respect of limitation in the scintillation light yields and lifetimes. The combination of high–light yield and fast response can be found in Ce 3 + , Pr 3 + and Nd 3 + lanthanide-doped scintillators while the maximum light yield conversion of 100,000 photons/MeV can be found in Eu 3 + doped SrI 2 . However, the fabrication of those lanthanide-doped scintillators is inefficient and expensive as it requires high-temperature furnaces. A self-grown single crystal using solution processes is already introduced in perovskite photovoltaic technology and it can be the key for low-cost scintillators. A novel class of materials in scintillation includes lead halide perovskites. These materials were explored decades ago due to the large X-ray absorption cross section. However, lately lead halide perovskites have become a focus of interest due to recently reported very high photoluminescence quantum yield and light yield conversion at low temperatures. In principle, 150,000–300,000 photons/MeV light yields can be proportional to the small energy bandgap of these materials, which is below 2 eV. Finally, we discuss the extraction efficiency improvements through the fabrication of the nanostructure in scintillators, which can be implemented in perovskite materials. The recent technology involving quantum dots and nanocrystals may also improve light conversion in perovskite scintillators.

scholarly journals FRET efficiency and antenna effect in multi-color DNA origami-based light harvesting systems

RSC Advances ◽  
2017 ◽  
Vol 7 (39) ◽  
pp. 23924-23934 ◽  
Author(s):  
L. Olejko ◽  
I. Bald
Keyword(s):  
Chemical Sensors ◽  
Light Harvesting ◽  
Dna Origami ◽  
Artificial Light ◽  
Antenna Effect ◽  
Light Harvesting Complexes ◽  
Harvesting Systems ◽  
Fret Efficiency

Artificial light harvesting complexes find applications in photosynthesis, photovoltaics and chemical sensors. Here, we present the characterization and optimization of a multi-color artificial light harvesting system on DNA origami structures.

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