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Bliznyuk VN, Seliman AF, Ishchenko AA, et al. New Efficient Organic Scintillators Derived from Pyrazoline. ACS Appl Mater Interfaces. 2016;8(20):12843-51doi: 10.1021/acsami.6b02719.
Bliznyuk, V. N., Seliman, A. F., Ishchenko, A. A., Derevyanko, N. A., & DeVol, T. A. (2016). New Efficient Organic Scintillators Derived from Pyrazoline. ACS applied materials & interfaces, 8(20), 12843-51. https://doi.org/10.1021/acsami.6b02719
Bliznyuk, Valery N, et al. "New Efficient Organic Scintillators Derived from Pyrazoline." ACS applied materials & interfaces vol. 8,20 (2016): 12843-51. doi: https://doi.org/10.1021/acsami.6b02719
Bliznyuk VN, Seliman AF, Ishchenko AA, Derevyanko NA, DeVol TA. New Efficient Organic Scintillators Derived from Pyrazoline. ACS Appl Mater Interfaces. 2016 May 25;8(20):12843-51. doi: 10.1021/acsami.6b02719. Epub 2016 May 10. PMID: 27163887.
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ACS Appl Mater Interfaces. 2016 May 25;8(20):12843-51. doi: 10.1021/acsami.6b02719. Epub 2016 May 10.

New Efficient Organic Scintillators Derived from Pyrazoline.

ACS applied materials & interfaces

Valery N Bliznyuk, Ayman F Seliman, Alexander A Ishchenko, Nadezhda A Derevyanko, Timothy A DeVol

Affiliations

  1. Department of Environmental Engineering and Earth Science, Clemson University , Clemson, South Carolina 29634 United States.
  2. Institute of Organic Chemistry, National Academy of Science of Ukraine , 5 Murmanskaya Str., Kiev 02660, Ukraine.

PMID: 27163887 DOI: 10.1021/acsami.6b02719

Abstract

We report on the synthesis, spectroscopic and scintillation properties of three new pyrazoline core based fluorophores. Fluorescence properties of the fluorophores have been studied both in a solution state and in a solid polyvinyltoluene (PVT) resin matrix of different porosity. The synthesized fluorophores were found to be promising candidates for application in plastic scintillators for detection of ionizing radiation (alpha, beta particles, γ rays and neutrons) and demonstrated superior efficiency in comparison to the existing commercially used fluorophores (2-(1-naphthyl)-5-phenyloxazole (αNPO), 9,10-diphenylanthracene, etc.). Moreover, the suggested synthetic route allows functionalization of the fluorophores with a vinyl group for further covalent bound to the PVT or other vinyl polymer matrices, which dramatically improves chemical stability of the system simultaneously improving the photoluminescence quantum yield. Possible mechanisms of the enhanced scintillation properties are discussed based on preliminary quantum mechanical calculations and spectroscopic characteristics of the fluorophores under study.

Keywords: fluorescence; luminescence; plastic scintillators; pyrazoline fluorophores; radiation measurements

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