LUMINESCENT DYE MOLECULES FOR NEW PHOTONIC ANTENNAE
DOI:
https://doi.org/10.33003/fjs-2023-0705-1996Keywords:
Zinc, dipyrromethane, complex, mesoporous silica, photonic antennae, host-guest, light harvesting, PorphyrinAbstract
A zinc dipyrrin complex with a structural and functional design, that mimics the natural photonic antenna of a green plant, has been synthesized and incorporated into new designed model of mesoporous silica. The dye complex is composed of two dipyrromethene ligands which are connected to a central zinc(II) metal ion through the four nitrogen atoms. The dye complex has been characterized using various spectroscopic techniques,1HNMR, IR, and X-ray crystallography to elucidate their structure. UV-vis absorption and fluorescence spectroscopy were used to determine the optical properties of the dye before its encapsulation into the silica framework, and after being trapped in the silica pores. A comparison of the results obtained shows that the silica pores have a significant effect on the fluorescence quantum yield, the excited state lifetime, and the emission of the encapsulated dye molecules.
References
Agbonkhese, O., Yisa, G. L., Agbonkhese, E. G., Akanbi, D. O., Aka, E. O. and Mondingha, E. B. (2013) Road Traffic Accidents in Nigeria: Causes and Preventive Measures, Civil and Environmental Research, 3(13), 1 - 8
Boateng, F. G. (2021) Why Africa Cannot Prosecute (Or Even Educate) its Way Out of Road Accidents: Insights from Ghana, Humanities and Social Sciences Communications, 8(13), 1 - 11
Chen, F. & Chen, S. (2011) “Injury Severities of Truck Drivers in Single- and Multi-Vehicle Accidents on Rural Highways,” Accident Analysis & Prevention, 43(5), 1677–1688
Dong, B., Ma, X., Chen, F. & Chen, S. (2019) Investigating the Differences of Single-Vehicle and Multivehicle Accident Probability Using Mixed Logit Model, Journal of Advanced Transportation, 2019, Article ID 2702360
Erdogan, S. (2009) Explorative Spatial Analysis of Traffic Accident Statistics and Road Mortality among the Provinces of Turkey, Journal of Safety Research, 40, 341 – 351
Geedipally, S. R. & Lord, D. (2013) Identifying Hotspots by Modeling Single-Vehicle and Multivehicle Crashes Separately, Transportation Research Records, 2010, 2147, 97–104
Hong, J., Tamakloe, R. & Park, D. (2019) A Comprehensive Analysis of Multi-Vehicle Crashes on Expressways: A Double Hurdle Approach, Sustainability, 11, 2782
Institute for Road Safety Research (2012) The Relation between Speed and Crashes, SWOV Fact sheet © SWOV, Leidschendam, The Netherlands April 2012
Ivan, J.N.; Wang, C. & Bernardo, N. R. (2000) Explaining Two-Lane Expressway Crash Rates Using Land Use and Hourly Exposure, Accident Analysis & Prevention, 32, 787–795
Knipling, R. R. (2013) “Car-Truck Crashes in the National Motor Vehicle Crash Causation Study,” Proceedings of the Transportation Research Board (TRB), 92nd Annual Meeting, 13
NBS/FRSC (2020) Road Transport Data September Report, Federal Road Safety Corps, Abuja, Nigeria
NHTSA (2021) Traffic Safety Facts 2019 Data, US Department of Transportation, Washington D.C.
Yahaya, A. M., Yusuf, A. S., Musa, I., Maaji, F. I., Bambale, S. U., Oscar, R., Bawa, A. M. and Uwanuakwa, A. (2021) A Spatiotemporal Appraisal of Road Traffic Accident in Kaduna Metropolis, Nigeria, Journal of Social, Humanity, and Education (JSHE), 1 (3), 209 - 226
Yero, A. S., Ahmed, T. Y. and Hainin, M. R. (2015) Evaluation of Major Causes Of Road Accidents Along North–East Highway, Nigeria, Jurnal Teknologi, 7 (4), 39 – 43
Yunus, S. and Abdulkarim, I. A. (2021) Geospatial Analysis of Road Traffic Accidents and Emergency Response Optimization in Kano Metropolis, Nigeria, Research Square, DOI: https://doi.org/10.21203/rs.3.rs-1138619/v1
Published
How to Cite
Issue
Section
FUDMA Journal of Sciences
