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1. Photophysical Properties of Anthracene Derivatives

Author

Agonist Kastrati, Franck Oswald, Antoine Scalabre, and Katharina M. Fromm

Subjects
anthracene, light, spectra, electron, photopysics, emission, Chemistry, QD1-999
Abstract

In this tutorial review, we intend to provide the reader with a comprehensive introduction to the photophysical properties of organic compounds with a specific focus on anthracene and its derivatives. Anthracene-based building blocks have attracted the attention of chemists due to their intrinsic luminescent properties. A deep understanding of their interaction with light, including the mechanisms of emission (luminescence, i.e., fluorescence or phosphorescence) and quenching, is crucial to design and generate compounds with precise properties for further applications. Thus, the photophysical properties of different types of aggregates, both in the ground state (J- and H-type) and in the exited state (e.g., excimer, exciplex) will be discussed, finishing with a few examples of dyads and triads.

Published
2023
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2. Photophysical Properties of Anthracene Derivatives.

Author

Kastrati, Agonist, Oswald, Franck, Scalabre, Antoine, and Fromm, Katharina M.

Subjects
ANTHRACENE derivatives, ORGANIC compounds, FLUORESCENCE, QUENCHING (Chemistry), ELECTRONS
Abstract

In this tutorial review, we intend to provide the reader with a comprehensive introduction to the photophysical properties of organic compounds with a specific focus on anthracene and its derivatives. Anthracene-based building blocks have attracted the attention of chemists due to their intrinsic luminescent properties. A deep understanding of their interaction with light, including the mechanisms of emission (luminescence, i.e., fluorescence or phosphorescence) and quenching, is crucial to design and generate compounds with precise properties for further applications. Thus, the photophysical properties of different types of aggregates, both in the ground state (J- and H-type) and in the exited state (e.g., excimer, exciplex) will be discussed, finishing with a few examples of dyads and triads. [ABSTRACT FROM AUTHOR]

Published
2023
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3. EFFECT OF Zr4+ CONCENTRATION ON PHOTOLUMINESCENCE BEHAVIOUR OF MgFe2O4 PHOSPHOR.

Author

Banaj, Laxmikant and Agrawal, Sadhana

Subjects
PHOTOLUMINESCENCE, PHOSPHORS, X-ray diffraction, SUSTAINABLE development, SCANNING electron microscopy
Abstract

In the present work, the structural, morphological, and photoluminescence behavior of Mg1-xFe2O4:xZr (x = 0, 0.25, 0.5, 0.75, 1, 1.25, and 1.5 %mol) phosphors, prepared by the solid-state reaction method, have been investigated. X-ray diffraction analysis reveals that the prepared samples exhibit a single-phase cubic structure with space group Fd-3m (227). The crystallite size, calculated using the Scherrer formula, ranges from 17 to 28 nm. The microstructure of the synthesized ferrite samples was characterized by scanning electron microscopy. FTIR analysis shows broad absorption peaks in the range of 594 to 402 cm-1. The photoluminescence spectra exhibit emission peaks at 460 nm in the visible range under a 230 nm excitation wavelength. The PL intensities increase with the incorporation of Zr4+ ions up to 1 %mol. Furthermore, CIE and correlated color temperature (CCT) coordinates have been calculated for the synthesized ferrite samples. This research not only advances our understanding of these materials but also holds significant implications for environmental protection, paving the way for the development of more sustainable and efficient technologies. [ABSTRACT FROM AUTHOR]

Published
2023

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