Open Access
Frontiers in Chemistry, volume 7
Optical Limiting and Femtosecond Pump-Probe Transient Absorbance Properties of a 3,5-distyrylBODIPY Dye
1
Department of Chemistry, Institute for Nanotechnology Innovation, Rhodes University, South Africa
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2
Département de Chimie, Université de Kinshasa, Democratic Republic of the Congo
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Publication type: Journal Article
Publication date: 2019-10-31
Journal:
Frontiers in Chemistry
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 5.5
ISSN: 22962646
PubMed ID:
31737610
General Chemistry
Abstract
The optical limiting (OL) properties of a 3,5-di-p-benzyloxystyrylBODIPY dye with an p-acetamidophenyl moiety at the meso-position have been investigated by using the open-aperture Z-scan technique at 532 nm with 10 ns laser pulses. There is a ca. 140 nm red shift of the main spectral band to 644 nm relative to the corresponding BODIPY core dye, due to the incorporation of p-benzyloxystyryl groups at the 3,5-positions. As a result, there is relatively weak absorbance across most of the visible region under ambient light conditions. Analysis of the observed reverse saturable absorbance (RSA) profiles demonstrates that the dye is potentially suitable for use in optical limiting applications as has been reported previously for other 3,5-distyrylBODIPY dyes. Time-resolved transient absorption spectroscopy and kinetic studies with femtosecond and nanosecond scale laser pulses provide the first direct spectral evidence that excited state absorption (ESA) from the S1 state is responsible for the observed OL properties.
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Ngoy B. P. et al. Optical Limiting and Femtosecond Pump-Probe Transient Absorbance Properties of a 3,5-distyrylBODIPY Dye // Frontiers in Chemistry. 2019. Vol. 7.
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Ngoy B. P., May A. K., Mack J., Nyokong T. Optical Limiting and Femtosecond Pump-Probe Transient Absorbance Properties of a 3,5-distyrylBODIPY Dye // Frontiers in Chemistry. 2019. Vol. 7.
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TY - JOUR
DO - 10.3389/fchem.2019.00740
UR - https://doi.org/10.3389%2Ffchem.2019.00740
TI - Optical Limiting and Femtosecond Pump-Probe Transient Absorbance Properties of a 3,5-distyrylBODIPY Dye
T2 - Frontiers in Chemistry
AU - Ngoy, Bokolombe P.
AU - May, Aviwe K.
AU - Mack, John
AU - Nyokong, Tebello
PY - 2019
DA - 2019/10/31 00:00:00
PB - Frontiers Media S.A.
VL - 7
PMID - 31737610
SN - 2296-2646
ER -
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@article{2019_Ngoy,
author = {Bokolombe P. Ngoy and Aviwe K. May and John Mack and Tebello Nyokong},
title = {Optical Limiting and Femtosecond Pump-Probe Transient Absorbance Properties of a 3,5-distyrylBODIPY Dye},
journal = {Frontiers in Chemistry},
year = {2019},
volume = {7},
publisher = {Frontiers Media S.A.},
month = {oct},
url = {https://doi.org/10.3389%2Ffchem.2019.00740},
doi = {10.3389/fchem.2019.00740}
}