Development of Analyzer for Photoluminescence Quenching in a Solid Matrix
| Autor: | Masao Kaneko, Michiko Seo, Sumio Tokita, Hidenobu Shiroishi, Kazuhisa Suzuki |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Spectrum analyzer
Materials science Aqueous solution Quenching (fluorescence) High Energy Physics::Lattice Diffusion Analytical chemistry chemistry.chemical_element General Medicine Polyethylene glycol Ruthenium Condensed Matter::Soft Condensed Matter Matrix (chemical analysis) Condensed Matter::Materials Science chemistry.chemical_compound chemistry Molecule Physics::Chemical Physics |
| Zdroj: | Journal of Computer Chemistry, Japan. 1:37-46 |
| ISSN: | 1347-3824 1347-1767 |
| DOI: | 10.2477/jccj.1.37 |
| Popis: | An analyzer called “Q-chanG4” was developed with Visual Basic for photoluminescence quenching in a solid. This software can analyze the quenching mechanism in a solid matrix using emission decay curves and Stern-Volmer plots. Photoluminescence quenching of Tris(2,2’-bipyridine)ruthenium(II) in a polyethylene glycol solid by methylviologen was analyzed with Q-chanG4. The quenching mechanism was determined as a combination of a dynamic quenching and a static quenching involving multi-step equilibria and dynamic quenching. The dynamic quenching rate constant in the polyethylene glycol was as large as that in an aqueous solution, suggesting that the diffusion coefficient of molecules in the polyethylene glycol is almost the same as that in an aqueous solution in spite of the solid state. |
| Databáze: | OpenAIRE |
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