Ratzke, Wolfram and Schmitt, Lisa and Matsuoka, Hideto and Bannwarth, Christoph and Retegan, Marius and Bange, Sebastian and Klemm, Philippe and Neese, Frank and Grimme, Stefan and Schiemann, Olav and Lupton, John M. and Hoeger, Sigurd (2016) Effect of Conjugation Pathway in Metal-Free Room-Temperature Dual Singlet Triplet Emitters for Organic Light-Emitting Diodes. JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 7 (22). pp. 4802-4808. ISSN 1948-7185,
Full text not available from this repository. (Request a copy)Abstract
Metal-free dual singlettriplet organic light-emitting diode (OLED) emitters can provide direct insight into spin statistics, spin correlations and spin relaxation phenomena, through a comparison of fluorescence to phosphorescence intensity. Remarkably, such materials can also function at room temperature, exhibiting phosphorescence lifetimes of several milliseconds. Using electroluminescence, quantum chemistry, and electron paramagnetic resonance spectroscopy, we investigate the effect of the conjugation pathway on radiative and nonradiative relaxation of the triplet state in phenazine-based compounds and demonstrate that the contribution of the phenazine n pi* excited state is crucial to enabling phosphorescence.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ZETA VALENCE QUALITY; BASIS-SETS; DELAYED FLUORESCENCE; ELECTRONIC-STRUCTURE; PHOSPHORESCENCE; SPIN; STATE; DENSITY; EMISSION; POLYMERS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group John Lupton |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Apr 2019 10:25 |
| Last Modified: | 12 Apr 2019 10:25 |
| URI: | https://pred.uni-regensburg.de/id/eprint/3942 |
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