Two-photon absorption dye based on 2,5-bis(phenylacrylonitrile)thiophene with aggregration enhanced fluorescence

6533b859fe1ef96bd12b837a

RESEARCH PRODUCT

Two-photon absorption dye based on 2,5-bis(phenylacrylonitrile)thiophene with aggregration enhanced fluorescence

Rudolf Zentel Kerstin Schmidt Prem Prabhakaran Kwang-sup Lee Tobias Johann

subject

Materials science Solvatochromism Nanoparticle Quantum yield 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Fluorescence Two-photon absorption 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Excited state Thiophene Molecule 0210 nano-technology

description

This paper reports the synthesis and characterization of a 2,5-bis(phenylacrylonitrile) thiophene based two-photon dye, designed to show enhancement in fluorescence quantum yield in nanoaggregated form. Strong solvatochromism has been observed and explained by the favoritism of locally excited (LE) or internal charge transfer (ICT) state depending on the solvent polarity. Aqueous dispersions of nanoparticles have been prepared and investigated regarding their optical properties which were correlated to the LE and ICT state and the molecular structure of the aggregates. (C) 2016 Optical Society of America

year	journal	country	edition	language
2016-03-23

10.1364/ome.6.001296 http://open-repository.kisti.re.kr/cube/handle/open_repository/486609.do

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