Systematic color tuning of a family of luminescent azole-based organoboron compounds suitable for OLED applications
A new tunable luminescent family of heterocyclic aromatic compounds containing boron has been prepared and characterized through NMR spectroscopy, mass spectrometry, absorption and fluorescence spectroscopy as well as structural study using single crystal X-ray crystallography. Spectroscopic properties of the new compounds were also studied using DFT and TDDFT computational models that showed very good agreement of the theoretical data with experimental results. Through introduction of auxochromic atoms such as sulfur and extension of the π system of the ligands it is possible to cover a large range of the visible spectrum. Activation and enhancement of the luminescence is achieved by condensation reactions that introduce the boron fragment forming stable, sublimable compounds suitable for OLED applications.
Kiprof, Paul,Carlson, Jeffrey C.,Anderson, Derrick R.,Nemykin, Victor N.
p. 15120 - 15132
(2013/10/22)
COMPOUNDS HAVING ELECTRON TRANSPORT PROPERTIES, THEIR PREPARATION AND USE
The invention provides compounds having utility inter alia as electron transport materials in optical light emitting diodes (OLEDs) and of the formula (I), (Il) or (III). Embodiments of the compounds when incorporated as electron transport layers in OLEDs exhibit a greater current density for a given voltage than corresponding devices where the electron transport material is aluminium quinolate.
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Page/Page column 64-65
(2010/04/03)
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