Rausch, Andreas F. and Thompson, Mark E. and Yersin, Hartmut (2009) Triplet state relaxation processes of the OLED emitter Pt(4,6-dFppy)(acac). CHEMICAL PHYSICS LETTERS, 468 (1-3). pp. 46-51. ISSN 0009-2614, 1873-4448
Full text not available from this repository. (Request a copy)Abstract
The emitting triplet state of Pt(4,6-dFppy)(acac) doped into n-octane is studied at cryogenic temperatures by site-selective high-resolution optical spectroscopy. The investigations reveal a very specific zero-field splitting (ZFS) pattern of the emitting T-1 state and the individual deactivation times of the substates to the singlet ground state S-0. Spin-lattice relaxation (SLR) processes occurring between the T-1 substates are ascribed to a combination of the direct and the Raman process. Due to the relatively long SLR time at low temperature, a Boltzmann distribution is not established directly after the excitation pulse below approximate to 2 K. (C) 2008 Elsevier B. V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SPIN-LATTICE-RELAXATION; TEMPERATURE-DEPENDENCE; PLATINUM(II) COMPLEXES; HOST MATERIALS; EFFICIENCY; EMISSION; DYNAMICS; EXCIMERS; LIGANDS; DEVICES; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry III - Physical Chemistry (Molecular Spectroscopy and Photochemistry) > Prof. Dr. Hartmut Yersin |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 07 Oct 2020 09:39 |
| Last Modified: | 07 Oct 2020 09:39 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29581 |
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