scholarly journals Emission Enhancement of Fluorescent Molecules by Antireflective Arrays

Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Hongbo Xu ◽  
Lingxiao Liu ◽  
Fei Teng ◽  
Nan Lu
Keyword(s):  
Energy Dissipation ◽  
Fluorescence Enhancement ◽  
Fluorescence Emission ◽  
Effective Strategy ◽  
Emission Enhancement ◽  
New Strategy ◽  
Fluorescent Molecules

Traditional fluorescence enhancement based on a match of the maximum excitation or emission of fluorescence molecule with the spectra of the nanostructure can hardly enhance blue and red fluorescent molecules. Here, an enhanced method which is a new strategy based on the antireflective array has been developed to enhance the emission of blue and red fluorescent molecules. The fluorescence emission is enhanced by increasing the absorption at excitation wavelengths of the fluorescent molecules and reducing the fluorescent energy dissipation with an antireflective array. By introducing the antireflective arrays, the emission enhancement of blue and red fluorescent molecules is, respectively, up to 14 and 18 fold. It is a universal and effective strategy for enhancing fluorescence emission, which could be applied to enhance the intensity of organic LED and imaging.

Fluorescence enhancement novel green analytical method for paraquat herbicide quantification based on immobilization on clay

The Analyst ◽  
2019 ◽  
Vol 144 (10) ◽  
pp. 3357-3363 ◽  
Author(s):  
Marina A. Dominguez ◽  
Matías Insausti ◽  
Romina Ilari ◽  
Graciela P. Zanini
Keyword(s):  
Analytical Method ◽  
Fluorescence Enhancement ◽  
Fluorescence Emission ◽  
Promising Tool ◽  
Emission Enhancement

Fluorescence emission enhancement by adsorption as a promising tool for the development of future green sensors.

scholarly journals The construction of a two-dimensional supramolecular organic framework with parallelogram pores and stepwise fluorescence enhancement

2015 ◽  
Vol 51 (91) ◽  
pp. 16417-16420 ◽  
Author(s):  
Shun-Qi Xu ◽  
Xiang Zhang ◽  
Cheng-Bin Nie ◽  
Zhong-Fu Pang ◽  
Xiao-Na Xu ◽  
...  
Keyword(s):  
Fluorescence Enhancement ◽  
Fluorescence Emission ◽  
Single Layer ◽  
Two Dimensional ◽  
Emission Enhancement ◽  
Organic Framework

A novel single-layer two-dimensional (2D) supramolecular organic framework (SOF) with parallelogram pores has been assembled and a stepwise fluorescence emission enhancement was observed.

scholarly journals Methyl-restricted rotor rotation on the stator produces high-efficiency fluorescence emission: a new strategy to achieve aggregation-induced emission

RSC Advances ◽  
2019 ◽  
Vol 9 (21) ◽  
pp. 12078-12084 ◽  
Author(s):  
Haicheng Yang ◽  
Xinyue Zhou ◽  
Tianqi Hui ◽  
Yingying Han ◽  
Xiaonan Jiang ◽  
...  
Keyword(s):  
Energy Loss ◽  
Fluorescence Enhancement ◽  
High Efficiency ◽  
Fluorescence Emission ◽  
Aggregation Induced Emission ◽  
Rotor Rotation ◽  
New Strategy

At present, we have realized that the aggregation-induced emission (AIE) achieves the purpose of fluorescence enhancement by restricting rotations to reduce intermolecular or intramolecular energy loss.

High-temperature driven inter-valley carrier transfer and significant fluorescence enhancement in multilayer WS2

2018 ◽  
Vol 3 (6) ◽  
pp. 598-605 ◽  
Author(s):  
Heyu Chen ◽  
Yuanzheng Li ◽  
Weizhen Liu ◽  
Haiyang Xu ◽  
Guochun Yang ◽  
...  
Keyword(s):  
High Temperature ◽  
Transfer Process ◽  
Fluorescence Enhancement ◽  
Fluorescence Emission ◽  
Carrier Transfer ◽  
Emission Enhancement

A high-temperature driven carrier transfer process of multilayer WS2 is proposed and demonstrated for significant fluorescence emission enhancement.

The Difference in Sensing Properties Towards Anions between Two Pyridinium Amide-Based Receptors with a Subtle Change of H-Bond Position

2020 ◽  
Vol 17 (6) ◽  
pp. 472-478
Author(s):  
Wei-tao Gong ◽  
Wei-dong Qu ◽  
Guiling Ning
Keyword(s):  
Fluorescence Enhancement ◽  
Small Difference ◽  
Fluorescence Emission ◽  
Subtle Change ◽  
Sensing Properties ◽  
Naked Eye ◽  
Recognition Ability ◽  
The Difference ◽  
L1 And L2

Two pyridinium amide-based receptors L1 and L2 with a small difference of H-bond position of the amide have been synthesized and characterized. Interestingly, they exhibited a huge difference in sensing towards AcO- and H2PO4 -, respectively. Receptor L1 was found to be ‘naked-eye’ selective for AcO- anions, while receptor L2 showed clear fluorescence enhancement selective to H2PO4 - anion. The recognition ability has been established by fluorescence emission, UV-vis spectra, and 1HNMR titration.

scholarly journals MoS2 pixel arrays for real-time photoluminescence imaging of redox molecules

2019 ◽  
Vol 5 (11) ◽  
pp. eaat9476 ◽  
Author(s):  
M. F. Reynolds ◽  
M. H. D. Guimarães ◽  
H. Gao ◽  
K. Kang ◽  
A. J. Cortese ◽  
...  
Keyword(s):  
New Technologies ◽  
Chemical Potential ◽  
Strong Dependence ◽  
Detection Methods ◽  
Redox Active ◽  
New Strategy ◽  
Chemical And Biological Systems ◽  
Redox Molecules ◽  
Fluorescent Molecules ◽  
Molecule Concentration

Measuring the behavior of redox-active molecules in space and time is crucial for understanding chemical and biological systems and for developing new technologies. Optical schemes are noninvasive and scalable, but usually have a slow response compared to electrical detection methods. Furthermore, many fluorescent molecules for redox detection degrade in brightness over long exposure times. Here, we show that the photoluminescence of “pixel” arrays of monolayer MoS2 can image spatial and temporal changes in redox molecule concentration. Because of the strong dependence of MoS2 photoluminescence on doping, changes in the local chemical potential substantially modulate the photoluminescence of MoS2, with a sensitivity of 0.9 mV/Hz on a 5 μm × 5 μm pixel, corresponding to better than parts-per-hundred changes in redox molecule concentration down to nanomolar concentrations at 100-ms frame rates. This provides a new strategy for visualizing chemical reactions and biomolecules with a two-dimensional material screen.

Pillar[5]arene-based supramolecular assemblies with two-step sequential fluorescence enhancement for mitochondria-targeted cell imaging

2020 ◽  
Vol 8 (44) ◽  
pp. 15622-15625
Author(s):  
Hao Guo ◽  
Xin Yan ◽  
Bing Lu ◽  
Jin Wang ◽  
Xiaolei Yuan ◽  
...  
Keyword(s):  
Live Cell Imaging ◽  
Cell Imaging ◽  
Fluorescence Enhancement ◽  
Fluorescence Emission ◽  
Supramolecular Assemblies ◽  
Live Cell ◽  
Supramolecular Nanoparticles

Two-step sequential fluorescence emission enhanced supramolecular nanoparticles are constructed from pillar[5]arene based host–guest interaction and a linear amphiphile. These supramolecular nanoparticles can be applied in mitochondria-targeted live cell imaging.

Fluorescence Enhancement of Europium(III) Perchlorate by 2,2′-Dipyridyl on Bis(benzylsulfinyl)methane Complex

2013 ◽  
Vol 634-638 ◽  
pp. 2462-2465
Author(s):  
Wen Xian Li ◽  
Bo Yang Ao ◽  
Jing Zhang
Keyword(s):  
Rare Earth ◽  
Ternary Complex ◽  
Fluorescence Enhancement ◽  
Fluorescence Emission ◽  
Europium Complex ◽  
New Method ◽  
Rare Earth Complexes ◽  
Fluorescence Properties ◽  
Binary Complex ◽  
Fluorescence Lifetimes

A novel ligand with double sulfinyl groups, bis(benzylsulfinyl)methane L, was synthesized by a new method. Its novel ternary complex, has been synthesized [using L as the first ligand, and dipyridyl L' as the second ligand]. In order to study the effect of the second ligand on the fluorescence properties of rare-earth sulfoxide complex, a novel binary europium complex has been synthesized. Photoluminescent measurement showed that the first ligand L could efficiently transfer the energy to Eu (III) ions in the complex. Furthermore, the detailed luminescence analyses on the rare earth complexes indicated that the ternary Eu (III) complex manifested stronger fluorescence intensities, longer lifetimes, and higher fluorescence quantum efficiencies than the binary Eu (III) materials. The fluorescence emission intensities and fluorescence lifetimes of the ternary complex enhanced more obviously than the binary complex.

Fluorescence emission enhancement of transparent Nd:YSAG ceramics by Sc2O3 doping

2005 ◽  
Vol 22 (10) ◽  
pp. 2134 ◽  
Author(s):  
Tao Feng ◽  
Jianlin Shi ◽  
Jiyang Chen ◽  
Danyu Jiang
Keyword(s):  
Fluorescence Emission ◽  
Emission Enhancement
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