Synthesis and characterization of a new triazine-based NUV-blue excitable material for phosphor-converted LED technologies

Alberto Luridiana; Luigi Stagi; Guido Ennas; Carlo Maria Carbonaro; Giuseppe Sforazzini; Pier Carlo Ricci; Francesco Secci

doi:10.1039/D1QM00887K

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Synthesis and characterization of a new triazine-based NUV-blue excitable material for phosphor-converted LED technologies†

Alberto Luridiana,

^a Luigi Stagi,

^b Guido Ennas,

^a Carlo Maria Carbonaro,

^c Giuseppe Sforazzini,^a Pier Carlo Ricci

*^c and Francesco Secci

*^a

Author affiliations

* Corresponding authors

^a Department of Chemical and Geological Sciences, Universita’ degli Studi di Cagliari, SS 554, bivio per Sestu, 09042 Monserrato, Cagliari, Italy
E-mail: fsecci@unica.it
Web: https://www.secciresearchgroup.eu

^b Department of Chemistry and Pharmacy, Laboratory of Materials Science and Nanotechnology, CR-INSTM, University of Sassari, via Vienna 2, Sassari, Italy

^c Department of Physics, Universita’ degli Studi di Cagliari, SS 554, bivio per Sestu, 09042 Monserrato, Cagliari, Italy

Abstract

A novel blue excitable green fluorescent triazine-based material with high thermal stability (up to 350 °C) has been synthesized. Solid-state structural characterizations showed bright solid-state photoluminescence centered at 490 nm with an internal quantum yield (iQY) up to 40%. The coordination capabilities offered by the presence of a multi nitrogen and oxygen heteroatom framework allows to use TABNO (4,4′,4′′,4′′′-((6,6′-oxybis(1,3,5-triazine-6,4,2-triyl))tetrakis(azanediyl))tetrabenzonitrile) as Tb³⁺ and Eu³⁺ photosensitizer, thus delivering a purely organic host matrix for Ln ions with tunable light emissions. Blending this new material with K₂SiF₆:Mn⁴⁺ allowed access to a new class of REE free NUV-blue excitable warm light-emitting phosphors.

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Article information

DOI: https://doi.org/10.1039/D1QM00887K
Article type: Research Article
Submitted: 18 Jun 2021
Accepted: 05 Aug 2021
First published: 06 Aug 2021

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Mater. Chem. Front., 2021,5, 7051-7058

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Synthesis and characterization of a new triazine-based NUV-blue excitable material for phosphor-converted LED technologies

A. Luridiana, L. Stagi, G. Ennas, C. M. Carbonaro, G. Sforazzini, P. C. Ricci and F. Secci, Mater. Chem. Front., 2021, 5, 7051 DOI: 10.1039/D1QM00887K

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Materials Chemistry Frontiers

Synthesis and characterization of a new triazine-based NUV-blue excitable material for phosphor-converted LED technologies†

Abstract

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Synthesis and characterization of a new triazine-based NUV-blue excitable material for phosphor-converted LED technologies

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