| Titre : |
Thin films of cyclotriphosphazenes containing 1,3,4-oxadiazoles as fluorophores |
| Type de document : |
texte imprimé |
| Auteurs : |
Martín Caldera-Villalobos, Auteur ; Ana M. Herrera-González, Auteur ; Violeta Álvarez-Venicio, Auteur ; Miriam Martins-Alho, Auteur ; Margarita Rivera, Auteur ; M. del Pilar Carreón-Castro, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 295–302 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Caractérisation
Composés hétérocycliques
Couches minces
Matériaux -- Propriétés optiques
Nanotechnologie
Revêtement par centrifugation
Semiconducteurs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In this work, hexa-substituted cyclotriphosphazenes bearing 1,3,4-oxadiazole groups as fluorophores were employed in the formation of thin films. The cyclotriphosphazenes compounds as well as the films exhibited photoluminescence with emission in the UV-blue region. Fluorescence quantum yields of cyclotriphosphazenes range between 0.04 and 0.10. The bandgap of cyclotriphosphazenes was 4 eV showing properties of wide bandgap semiconductors. The morphological characterization of the films by SEM and AFM showed homogeneous surfaces without defects. The optical properties of cyclotriphosphazenes are different when they are in solution and thin films because of favorable binding supramolecular interactions. In thin films, the supramolecular interaction enhances the optical properties of these materials. |
| Note de contenu : |
- EXPERIMENTAL SECTION : Materials - Thin films - Optical properties
- RESULTS AND DISCUSSION : Optical characterization in solution- Optical characterization in thin films - Morphologic characterization
- Table 1 : Optical properties of cyclotriphosphazenes bearing 1,3,4-oxadiazoles in solution (5 × 10−6 M in chloroform-DMF 19:1)
- Table 2 : Optical properties of cyclotriphosphazenes bearing 1,3,4-oxadiazoles in thin films
- Table 3 : Morphological characteristics of cyclotriphosphazenes in thin films |
| DOI : |
https://doi.org/10.1007/s11998-021-00524-7 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-021-00524-7.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37159 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 1 (01/2022) . - p. 295–302
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Thin films of cyclotriphosphazenes containing 1,3,4-oxadiazoles as fluorophores in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 1 (01/2022)
