Aggregation-caused quenching versus crystallization induced emission in thiazolo[5,4-b]thieno[3,2-e]pyridine (TTP) derivatives: theoretical insights

2019 ◽  
Vol 21 (1) ◽  
pp. 46-56 ◽  
Author(s):  
Laura Le Bras ◽  
Karen Chaitou ◽  
Stéphane Aloïse ◽  
Carlo Adamo ◽  
Aurélie Perrier
Keyword(s):  
Photophysical Processes

Combining adequate theoretical strategies enables rationalization of the different photophysical processes at the origin of the ACQ/CIE effects.

Photochemical and Photophysical Processes on the Surface of Wide Band Gap Insulator Particulates: Gas/Solid System Involving Scandia (Sc2O3) Particles

1998 ◽  
Vol 10 (11) ◽  
pp. 3484-3491 ◽  
Author(s):  
Alexei V. Emeline ◽  
Svetlana V. Petrova ◽  
Vladimir K. Ryabchuk ◽  
Nick Serpone
Keyword(s):  
Band Gap ◽  
Wide Band ◽  
Wide Band Gap ◽  
Photophysical Processes ◽  
Solid System

Thermal, photochemical, and photophysical processes in cyclopropanone vapor

1976 ◽  
Vol 98 (8) ◽  
pp. 2027-2034 ◽  
Author(s):  
Hector J. Rodriguez ◽  
Jung-Ching Chang ◽  
Timothy F. Thomas
Keyword(s):  
Photophysical Processes

Simulation of photophysical processes of indoles in solution

1992 ◽  
Author(s):  
John D. Westbrook ◽  
Ronald M. Levy ◽  
Karsten Krogh-Jespersen
Keyword(s):  
Photophysical Processes

scholarly journals Single Molecule Techniques Can Distinguish the Photophysical Processes Governing Metal-Enhanced Fluorescence

2022 ◽  
Author(s):  
Stefania Impellizzeri ◽  
Gregory J, Hodgson ◽  
Nicholas P. Dogantzis
Keyword(s):  
Single Molecule ◽  
Organic Molecules ◽  
Near Field ◽  
Comprehensive Understanding ◽  
Enhanced Fluorescence ◽  
Metal Enhanced Fluorescence ◽  
Maximum Enhancement ◽  
Molecular Systems ◽  
Photophysical Processes ◽  
Underlying Processes

<p>Plasmonic metal nanoparticles can impact the behaviour of organic molecules in a number of ways, including enhancing or quenching fluorescence. Only through a comprehensive understanding of the fundamental photophysical processes regulating nano-molecular interactions can these effects be controlled, and exploited to the fullest extent possible. Metal-enhanced fluorescence (MEF) is governed by two underlying processes, increased rate of fluorophore excitation and increased fluorophore emission, the balance between which has implications for optimizing hybrid nanoparticle-molecular systems for various applications. We report groundbreaking work on the use of single molecule fluorescence microscopy to distinguish between the two mechanistic components of MEF, in a model system consisting of two analogous boron dipyrromethene (BODIPY) fluorophores and triangular silver nanoparticles (AgNP). We demonstrate that the increased excitation MEF mechanism occurs to approximately the same extent for both dyes, but that the BODIPY with the higher quantum yield of fluorescence experiences a greater degree of MEF via the increased fluorophore emission mechanism, and higher overall enhancement, as a result of its superior ability to undergo near-field interactions with AgNP. We foresee that this knowledge and methodology will be used to tailor MEF to meet the needs of different applications, such as those requiring maximum enhancement of fluorescence intensity or instead prioritizing excited-state photochemistry. </p>

Sign in / Sign up

Export Citation Format

Share Document