Spectroscopic Behavior and Photophysical Parameters of 2-(Acetoxymethyl)-6-(1,2,4-triazinylaminodihydroquinazolinyl)tetrahydropyran Derivative in Different Solid Hosts

Optical and photophysical properties of 6-substituted-1,2,4-Triazine fluorescent derivative dye doped in silicate based sol–gel, homopolymer of methyl methacrylate (PMMA), and copolymer (MMA/diethylene glycol dimethacrylate) (DEGDMA) were investigated. The pores of different hosts and caging of the...

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Bibliographic Details
Published in:Journal of fluorescence 2022-07, Vol.32 (4), p.1509-1516
Main Authors: Sakr, Mahmoud E. M., Kana, Maram T. H. Abou, Elwahy, Ahmed H. M., Abdelwahed, Mohamed S., El-Daly, Samy A., Ebeid, El-Zeiny M.
Format: Article
Language:English
Subjects:
Absorptivity
Analytical Chemistry
Biochemistry
Biological and Medical Physics
Biomedical and Life Sciences
Biomedicine
Biophysics
Biotechnology
Copolymers
Dipole moments
Dyes
Emission spectra
Excitation spectra
Fluorescence
Glycol dimethacrylates
Neodymium lasers
Optical properties
Original
Original Article
Parameters
Polymethyl methacrylate
Pulse duration
Semiconductor lasers
Sol-gel processes
Stability
YAG lasers
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Summary:Optical and photophysical properties of 6-substituted-1,2,4-Triazine fluorescent derivative dye doped in silicate based sol–gel, homopolymer of methyl methacrylate (PMMA), and copolymer (MMA/diethylene glycol dimethacrylate) (DEGDMA) were investigated. The pores of different hosts and caging of the dye were found to effect on the parameters such as molar absorptivity, cross sections of singlet–singlet electronic absorption and emission spectra, excited state lifetime, quantum yield of fluorescence. The dipole moment of electronic transition, the length of attenuation and oscillator strength of electronic transition from So → S1 have been calculated. The dye was pumped with different powers using 3 rd  harmonic Nd: YAG laser of 355 nm and pulse duration 8 ns, with repetition rate 10 Hz. Good photo stability for dye was attained. After 55,000 pumping pulses of (10 mJ/pulse), the photo-stabilities were decreased to 53%, 48%, and 45% of the initial ASE of dye in sol gel, PMMA, and Co-polymer respectively. The dye in sol–gel matrix showed improvement of photo stability compared with those in organic polymeric matrices.
ISSN:1053-0509
1573-4994
DOI:10.1007/s10895-022-02960-z