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.

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...

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...

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 J-aggregates of amphiphilic cyanine dyes: Self-organization of artificial light harvesting complexes

2006 ◽  
Vol 2006 ◽  
pp. 1-21 ◽  
Author(s):  
Stefan Kirstein ◽  
Siegfried Daehne
Keyword(s):  
Structural Model ◽  
Light Harvesting ◽  
Optical Spectra ◽  
Cyanine Dye ◽  
Structural Motif ◽  
Self Organization ◽  
Artificial Light ◽  
Light Harvesting Complexes ◽  
Unequal Distribution ◽  
J Aggregates

The simultaneous chemical linkage of cyanine dye chromophores with both hydrophobic and hydrophilic substituents leads to a new type of amphiphilic molecules with the ability of spontaneous self-organization into highly ordered aggregates of various structures and morphologies. These aggregates carry the outstanding optical properties of J-aggregates, namely, efficient exciton coupling and fast exciton energy migration, which are essential for the build up of artificial light harvesting systems. The morphology of the aggregates depends sensitively on the molecular structure of the chemical substituents of the dye chromophore. Accordingly, lamellar ribbon-like structures, vesicles , tubes, and bundles of tubes are found depending on the dyes and the structure can further be altered by addition of surfactants, alcohols, or other additives. Altogether the tubular structure is the most noticeable structural motif of these types of J-aggregates. The optical spectra are characterized in general by a complex exciton spectrum which is composed of several electronic transitions. The spectrum is red-shifted as a total with respect to the monomer absorption and exhibits resonance fluorescence from the lowest energy transition. For the tubular structures, the optical spectra can be related to a structural model. Although the molecules itself are strictly achiral, a pronounced circular dichroism (CD) is observed for the tubular aggregates and explained by unequal distribution of left- and right-handed helicity of the tubes. Photo-induced electron transfer (PET) reactions from the dye aggregates to electron acceptor molecules lead to superquenching which proves the delocalization of the excitation. This property is used to synthesize metal nanoparticles on the aggregate surface by photo-induced reduction of metal ions.

DNA-Based Supramolecular Artificial Light Harvesting Complexes

2009 ◽  
Vol 131 (44) ◽  
pp. 16024-16026 ◽  
Author(s):  
Challa V. Kumar ◽  
Michael. R. Duff
Keyword(s):  
Light Harvesting ◽  
Artificial Light ◽  
Light Harvesting Complexes

scholarly journals Self-assembly and energy transfer in artificial light-harvesting complexes of bacteriochlorophyll c with astaxanthin

2011 ◽  
Vol 111 (1-2) ◽  
pp. 193-204 ◽  
Author(s):  
J. Alster ◽  
T. Polívka ◽  
J. B. Arellano ◽  
P. Hříbek ◽  
F. Vácha ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Self Assembly ◽  
Light Harvesting ◽  
Artificial Light ◽  
Bacteriochlorophyll C ◽  
Light Harvesting Complexes
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