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https://hdl.handle.net/10442/19618
| Εξειδίκευση τύπου : | Κεφάλαιο σε πρακτικά συνεδρίου |
| Τίτλος: | Computational and Experimental Study of Photophysical Properties and Processes in Dyes and Systems PMMA-Dyes |
| Δημιουργός/Συγγραφέας: | Kolokytha, Christina
Sinani, Alexandra
Manouros, T.
Angelakos, Evangelos
[EL] Λαθιωτάκης, Νεκτάριος N.[EN] Lathiotakis, Nektarios N.
[EL] Ριζιώτης, Χρήστος Δ.[EN] Riziotis, Christos
[EL] Τζέλη, Δήμητρα[EN] Tzeli, Demeter |
| Ημερομηνία: | 2024 |
| Γλώσσα: | Αγγλικά |
| Περιγραφή: | In the present study, five dyes, i.e., anthracene, aminoanthracene, perylene, 1,6-diphenylhexatriene and 7-diethylamino-4-methylcoumarin were studied in solvent and attached at the poly
methyl methacrylate (PMMA) via DFT and TD-DFT calculations [1, 2]. Experimentally, micro and nano
structures were developed through direct exposure of composites built out of these materials, with
a diode laser system. The structures have systematically replicated specific geometry and features
and are promising for nano-pattering applications.
Theoretically, in all PMMA-dyes, except for PMMA-perylene, fluorescence peaks in UV-vis area that
correspond to electron transfer between PMMA and dyes were observed. On the contrary, in the
case of PMMA-1,6-diphenyl-hexatriene, observed charge transfer from the dye to PMMA, but with
small coordinator coefficient. Thus, we conclude that the ablation can occur to materials, while in
the case of PMMA-1,6-diphenyl-hexatriene no photochemical response was observed resulting to
the conclusion that the development of the structures can be attributed to a photothermal
phenomenon. |
| Όνομα εκδήλωσης: | 14th Panhellenic Conference of Chemical Engineering |
| Ημ/νία έναρξης εκδήλωσης : | 2024-05-29 |
| Ημ/νία λήξης εκδήλωσης : | 2024-05-31 |
| Τόπος εκδήλωσης: | Thessaloniki, Greece |
| Τίτλος πηγής δημοσίευσης: | Proceedings of the 14th Panhellenic Conference of Chemical Engineering
14o Πανελλήνιο Επιστημονικό Συνέδριο Χημικής Μηχανικής |
| Θεματική Κατηγορία: | [EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry
[EL] Νανοτεχνολογία[EN] Nanotechnology
[EL] Οργανική χημεία[EN] Organic chemistry
[EL] Εφαρμοσμένη οπτική. Φωτονική[EN] Applied optics. Photonics |
| Λέξεις-Κλειδιά: | Dyes
Poly-methyl-methacrylate
DFT
Absorption and fluorescence spectra
Micro and nano structures |
| Εμφανίζεται στις συλλογές: | Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο
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