The effect of heavy atom to two photon absorption properties and intersystem crossing mechanism in aza-boron-dipyrromethene compounds
Ahmet Karatay
1
,
M Ceren Miser
2
,
Xiaoneng Cui
3
,
Betül Küçüköz
1
,
Hüseyin Yilmaz
2
,
Gökhan Sevinç
2
,
Elif Akhüseyin
1
,
Xueyan Wu
3
,
M. Hayvali
2
,
Halime Gul Yaglioglu
1
,
Jianzhang Zhao
3
,
A. Elmali
1
Publication type: Journal Article
Publication date: 2015-11-01
scimago Q2
wos Q1
SJR: 0.680
CiteScore: 8.5
Impact factor: 4.2
ISSN: 01437208, 18733743
General Chemical Engineering
Process Chemistry and Technology
Abstract
New aza-boron-dipyrromethene compounds containing bromine atoms at various positions were designed and synthesized to enhance the triplet state population and two photon absorption properties for applications such as two-photon photodynamic therapy, triplet–triplet annihilation up-conversion. Steady state fluorescence and ultrafast pump probe spectroscopy techniques revealed that only 2, 6 positions of aza-boron-dipyrromethene core contribute to triplet state population significantly. Density function theory calculations showed that when bromine atoms introduced to 2, 6 position of aza-boron-dipyrromethene core, singlet and triplet energy levels get closer therefore probability of intersystem crossing increases. Z-scan experiments at 800 nm wavelengths revealed considerably large (610 GM) two photon absorption cross section value with respect to literature for compounds showing intersystem crossing mechanism. The efficient intersystem crossing and enhanced two-photon absorption properties make the investigated aza-boron-dipyrromethene compounds good candidates for two-photon photodynamic therapy application.
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Citations from 2025:
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GOST
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Karatay A. et al. The effect of heavy atom to two photon absorption properties and intersystem crossing mechanism in aza-boron-dipyrromethene compounds // Dyes and Pigments. 2015. Vol. 122. pp. 286-294.
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Karatay A., Miser M. C., Cui X., Küçüköz B., Yilmaz H., Sevinç G., Akhüseyin E., Wu X., Hayvali M., Yaglioglu H. G., Zhao J., Elmali A. The effect of heavy atom to two photon absorption properties and intersystem crossing mechanism in aza-boron-dipyrromethene compounds // Dyes and Pigments. 2015. Vol. 122. pp. 286-294.
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TY - JOUR
DO - 10.1016/j.dyepig.2015.07.002
UR - https://doi.org/10.1016/j.dyepig.2015.07.002
TI - The effect of heavy atom to two photon absorption properties and intersystem crossing mechanism in aza-boron-dipyrromethene compounds
T2 - Dyes and Pigments
AU - Karatay, Ahmet
AU - Miser, M Ceren
AU - Cui, Xiaoneng
AU - Küçüköz, Betül
AU - Yilmaz, Hüseyin
AU - Sevinç, Gökhan
AU - Akhüseyin, Elif
AU - Wu, Xueyan
AU - Hayvali, M.
AU - Yaglioglu, Halime Gul
AU - Zhao, Jianzhang
AU - Elmali, A.
PY - 2015
DA - 2015/11/01
PB - Elsevier
SP - 286-294
VL - 122
SN - 0143-7208
SN - 1873-3743
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2015_Karatay,
author = {Ahmet Karatay and M Ceren Miser and Xiaoneng Cui and Betül Küçüköz and Hüseyin Yilmaz and Gökhan Sevinç and Elif Akhüseyin and Xueyan Wu and M. Hayvali and Halime Gul Yaglioglu and Jianzhang Zhao and A. Elmali},
title = {The effect of heavy atom to two photon absorption properties and intersystem crossing mechanism in aza-boron-dipyrromethene compounds},
journal = {Dyes and Pigments},
year = {2015},
volume = {122},
publisher = {Elsevier},
month = {nov},
url = {https://doi.org/10.1016/j.dyepig.2015.07.002},
pages = {286--294},
doi = {10.1016/j.dyepig.2015.07.002}
}