The Photostability of Novel Boron Hydride Blue Emitters in Solution and Polystyrene Matrix
| Autor: | Barbora Hanulikova, Michal Urbanek, Ivo Kuřitka, Jan Antos, Tereza Capkova, Michael G. S. Londesborough, Jonathan Bould, Jakub Sevcik, Pavel Urbanek, Lukáš Petřkovský, Bita Ghasemi |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Photoluminescence chemistry.chemical_element Boranes 02 engineering and technology 010402 general chemistry Photochemistry photostability lcsh:Technology 01 natural sciences Article anti-B18H22 General Materials Science Thin film boronhydride emitters lcsh:Microscopy Boron lcsh:QC120-168.85 chemistry.chemical_classification lcsh:QH201-278.5 Dopant lcsh:T Hydride Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences OLED chemistry lcsh:TA1-2040 lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology Luminescence lcsh:TK1-9971 |
| Zdroj: | Materials Volume 14 Issue 3 Materials, Vol 14, Iss 589, p 589 (2021) |
| ISSN: | 1996-1944 |
| Popis: | In recent work, the boron hydride anti-B18H22 was announced in the literature as a new laser dye, and, along with several of its derivatives, its solutions are capable of delivering blue luminescence with quantum yields of unity. However, as a dopant in solid polymer films, its luminescent efficiencies reduce dramatically. Clarification of underlying detrimental effects is crucial for any application and, thus, this contribution makes the initial steps in the use of these inorganic compounds in electrooptical devices based on organic polymer thin films. The photoluminescence behavior of the highly luminescent boron hydrides, anti-B18H22 and 3,3 ',4,4 '-Et-4-anti-B18H18, were therefore investigated. The quantum yields of luminescence and photostabilities of both compounds were studied in different solvents and as polymer-solvent blends. The photophysical properties of both boranes are evaluated and discussed in terms of their solvent-solute interactions using photoluminescence (PL) and NMR spectroscopies. The UV degradability of prepared thin films was studied by fluorimetric measurement. The effect of the surrounding atmosphere, dopant concentration and the molecular structure were assessed. Czech Science FoundationGrant Agency of the Czech Republic [19-23513S]; Operational Program Research and Development for InnovationsEuropean Commission; European Regional Development Fund (ERDF)European Commission; national budget of the Czech Republic [CZ.1.05/2.1.00/19.0409] |
| Databáze: | OpenAIRE |
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