Fischer, Tobias and Czerwieniec, Rafal and Hofbeck, Thomas and Osminina, Maria M. and Yersin, Hartmut (2010) Triplet state properties of a red light emitting [Pt(s-thpy)(acac)] compound. CHEMICAL PHYSICS LETTERS, 486 (1-3). pp. 53-59. ISSN 0009-2614,
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A photophysical characterization based on optical high-resolution spectra and emission decay properties at low temperatures and at high magnetic fields is carried out for [Pt(s-thpy)(acac)] (s-thpy = 5,2-bis(2-thienyl)pyridinate and acac = acetylacetonate). The electronic 0-0 transition between the lowest triplet state and the ground state lies at 16 150 cm (1) (619 nm). The zero-field splitting (ZFS) of T(1) is smaller than 1 cm (1). Thus, the emitting excited state is mainly of ligand-centered (3)LC((3)pi pi*) character and experiences only weak spin-orbit couplings to higher lying singlet states. The compound does not fulfill important requirements for OLED applications, but strategies for improvements are pointed out. (C) 2009 Elsevier B. V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CYCLOMETALATED PLATINUM COMPLEXES; SENSITIZED SOLAR-CELLS; ELECTROLUMINESCENT DEVICES; PHOTOPHYSICAL PROPERTIES; TEMPERATURE-DEPENDENCE; IRIDIUM(III) COMPLEX; PHOSPHORESCENT STATE; DECAY DYNAMICS; EMISSION; SPECTROSCOPY; |
| 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 Aug 2020 08:20 |
| Last Modified: | 07 Aug 2020 08:20 |
| URI: | https://pred.uni-regensburg.de/id/eprint/25161 |
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