Blue highly fluorescent boron difluoride complexes based on phthalazine-pyridine. - Laboratoire de chimie moléculaire et thioorganique Accéder directement au contenu
Article Dans Une Revue New Journal of Chemistry Année : 2016

Blue highly fluorescent boron difluoride complexes based on phthalazine-pyridine.

Résumé

Three new boron difluoride complexes based on phthalazine–pyridine, denoted (6), (7) and (8), have been synthesized and their photophysical and electrochemical properties have been studied. Solutions of these new BF 2-complexes exhibit an intense blue fluorescence under UV light at low concentrations. Fluorescence quantum yields (QYs) have been determined by photoluminescence (PL) spectroscopy and decay times (t) by semi-empirical methods. QYs of (6), (7) and (8) vary from 25% to 79%. HOMO and LUMO energy levels have been estimated by cyclic voltammetry and PL spectroscopy. The HOMO and LUMO energy levels, at BÀ5.3 eV and BÀ2.3 eV, respectively, make these new complexes interesting candidates as blue emitters in OLED applications.
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Dates et versions

hal-01388831 , version 1 (25-06-2018)

Identifiants

Citer

Thi Minh Ha Vuong, Jennifer Weimmerskirch-Aubatin, Jean-François Lohier, Nathalie Bar, Sophie Boudin, et al.. Blue highly fluorescent boron difluoride complexes based on phthalazine-pyridine.. New Journal of Chemistry, 2016, 40 (7), pp.6070-6076. ⟨10.1039/C6NJ00726K⟩. ⟨hal-01388831⟩
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