Results 11 to 20 of about 128,715 (272)

Unified evaluation of surface-enhanced resonance Raman scattering and fluorescence under strong coupling regime [PDF]

open access: yesThe Journal of chemical physics 149 (24), 244701 (2018), 2018
We demonstrate importance of molecular multiple excitons and higher-order plasmons for both enhancement and quenching of resonance Raman and fluorescence of single dye molecule located at plasmonic hotspot under strong coupling regime.
Itoh, Tamitake, Yamamoto, Yuko S.
core   +2 more sources

Air Fluorescence Relevant for Cosmic-Ray Detection - Summary of the 5th Fluorescence Workshop, El Escorial 2007 [PDF]

open access: yesNucl.Instrum.Meth.A597:50-54,2008, 2008
High-energy cosmic rays with energies exceeding $10^{17}$ eV are frequently observed by measurements of the fluorescence light induced by air showers. A major contribution to the systematic uncertainties of the absolute energy scale of such experiments ...
Abbasi   +45 more
core   +14 more sources

Quenching of fluorescence of aromatic molecules by graphene due to electron transfer [PDF]

open access: yesarXiv, 2010
Investigations on the fluorescence quenching of graphene have been carried out with two organic donor molecules, pyrene butanaoic acid succinimidyl ester (PyBS, I) and oligo(p-phenylenevinylene) methyl ester (OPV-ester, II).
George, Subi J   +4 more
core   +2 more sources

The impact of the air-fluorescence yield on the reconstructed shower parameters of ultra-high energy cosmic rays [PDF]

open access: yesAstropart.Phys.34:467-475,2011, 2010
An accurate knowledge of the fluorescence yield and its dependence on atmospheric properties such as pressure, temperature or humidity is essential to obtain a reliable measurement of the primary energy of cosmic rays in experiments using the ...
Arqueros, F.   +3 more
core   +4 more sources

Metal-Enhanced Fluorescence of Carbon Nanotubes [PDF]

open access: yesarXiv, 2010
The photoluminescence (PL) quantum yield of single-walled carbon nanotubes (SWNTs) is relatively low, with various quenching effects by metallic species reported in the literature.
Dai, Hongjie   +5 more
core   +2 more sources

The yield of air fluorescence induced by electrons [PDF]

open access: yesAstropart.Phys.26:231-242,2006, 2006
The fluorescence yield for dry air and pure nitrogen excited by electrons is calculated using a combination of well-established molecular properties and experimental data of the involved cross sections.
A. Castellanos   +61 more
core   +3 more sources

Localized States and Resultant Band Bending in Graphene Antidot Superlattices [PDF]

open access: yes, 2011
We fabricated dye sensitized graphene antidot superlattices with the purpose of elucidating the role of the localized edge state density. The fluorescence from deposited dye molecules was found to strongly quench as a function of increasing antidot ...
Ai, Nan   +6 more
core   +2 more sources

Quenching Efficiency of Quantum Dots Conjugated to Lipid Bilayers on Graphene Oxide Evaluated by Fluorescence Single Particle Tracking

open access: yesApplied Sciences, 2022
A single particle observation of quantum dots (QDs) was performed on lipid bilayers formed on graphene oxide (GO). The long-range fluorescence quenching of GO has been applied to biosensing for various biomolecules.
Yoshiaki Okamoto   +2 more
doaj   +1 more source

Binding of caffeine with nicotinamide: A study by means of fluorescence quenching and UV-Vis spectroscopic techniques

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023
In this work, the binding of caffeine (CAF) with nicotinamide (NIC) has been investigated by means of fluorescence quenching and UV-Vis spectroscopic techniques.
Gebreyohanes Ataklti Abraha   +1 more
doaj   +1 more source

Facile synthesis of chitosan-capped ZnS quantum dots as an eco-friendly fluorescence sensor for rapid determination of bisphenol A in water and plastic samples [PDF]

open access: yes, 2014
This paper describes a novel eco-friendly fluorescence sensor for determination of bisphenol A (BPA) based on chitosan-capped ZnS quantum dots (QDs). By using safe and inexpensive materials, nontoxic ZnS QDs were synthesized via an environment-friendly ...
Bie, Jiaxin   +7 more
core   +1 more source

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