Fischer, T. and Czerwieniec, R. and Hofbeck, T. and Osminina, M. M. and Yersin, Hartmut (2010) Triplet state properties of a red emitting [Pt(s-thpy)(acac)] compound. Journal of Chemical Physics Letters 486, pp. 53-59.
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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 16150 cm⁻¹ (619 nm). The zero-field splitting (ZFS) of T₁ is smaller than 1 cm⁻¹. Thus, the emitting excited state is mainly of ligand-centered ³LC(³ππ*) 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.
|Institutions:||Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry III - Physical Chemistry (Light and Matter) > Prof. Dr. Hartmut Yersin|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Partially|
|Owner:||Prof. Dr. Hartmut Yersin|
|Deposited On:||13 Dec 2010 14:34|
|Last Modified:||13 Dec 2010 14:34|