Penzkofer, A. (2013) Phosphorescence quantum yield determination with time-gated fluorimeter and Tb(III)-acetylacetonate as luminescence reference. CHEMICAL PHYSICS, 415. pp. 173-178. ISSN 0301-0104,
Full text not available from this repository. (Request a copy)Abstract
Phosphorescence quantum yield measurements of fluorescent and phosphorescent samples require the use of time-gated fluorimeters in order to discriminate against the fluorescence contribution. As reference standard a non-fluorescent luminescent compound is needed for absolute phosphorescence quantum yield determination. For this purpose the luminescence behavior of the rare earth chelate terbium(III)-acetylacetonate (Tb(acac)(3)) was studied (determination of luminescence quantum yield and luminescence lifetime). The luminescence quantum yield of Tb(acac)(3) was determined by using an external light source and operating the fluorimeter in chemo/bioluminescence mode with a fluorescent dye (rhodamine 6G in methanol) as reference standard. A procedure is developed for absolute luminescence (phosphorescence) quantum yield determination of samples under investigation with a time-gated fluorimeter using a non-fluorescent luminescent compound of known luminescence quantum yield and luminescence lifetime. (C) 2013 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ENERGY-TRANSFER; TRIPLET-STATE; ACETYLACETONE; COMPLEXES; TERBIUM; LIFETIME; FILMS; EXCITATION; MECHANISM; DYNAMICS; Time-gated fluorimeter; Luminescence quantum yield; Luminescence lifetime; Phosphorescence reference standard; Terbium(III)-acetylacetonate chelate; Phosphorescence quantum yield calculation |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Alfons Penzkofer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Apr 2020 05:14 |
| Last Modified: | 23 Apr 2020 05:14 |
| URI: | https://pred.uni-regensburg.de/id/eprint/16964 |
Actions (login required)
 |
View Item |
