Leitl, Markus J. and Zink, Daniel M. and Schinabeck, Alexander and Baumann, Thomas and Volz, Daniel and Yersin, Hartmut (2016) Copper(I) Complexes for Thermally Activated Delayed Fluorescence: From Photophysical to Device Properties. TOPICS IN CURRENT CHEMISTRY, 374 (3): 25. ISSN 2365-0869, 2364-8961
Full text not available from this repository. (Request a copy)Abstract
Molecules that exhibit thermally activated delayed fluorescence (TADF) represent a very promising emitter class for application in electroluminescent devices since all electrically generated excitons can be transferred into light according to the singlet harvesting mechanism. Cu(I) compounds are an important class of TADF emitters. In this contribution, we want to give a deeper insight into the photophysical properties of this material class and demonstrate how the emission properties depend on molecular and host rigidity. Moreover, we show that with molecular optimization a significant improvement of selected emission properties can be achieved. From the discussed materials, we select one specific dinuclear complex, for which the two Cu(I) centers are four-fold bridged to fabricate an organic light emitting diode (OLED). This device shows the highest efficiency (of 23 % external quantum efficiency) reported so far for OLEDs based on Cu(I) emitters.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LIGHT-EMITTING-DIODES; CU-I COMPLEXES; PHOTOINDUCED STRUCTURAL-CHANGE; HIGHLY EFFICIENT; CU(I) COMPLEXES; EXCITED-STATE; EMISSION PROPERTIES; PHOSPHORESCENT EMISSION; LUMINESCENCE PROPERTIES; ELECTROCHEMICAL-CELLS; Thermally activated delayed fluorescence; TADF; Phosphorescence; Fluorescence; OLED; Emitter; Triplet harvesting; Singlet harvesting; Emission properties; Electroluminescence; Cu(I); Copper |
| 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: | Petra Gürster |
| Date Deposited: | 02 Sep 2020 07:50 |
| Last Modified: | 02 Sep 2020 07:50 |
| URI: | https://pred.uni-regensburg.de/id/eprint/2796 |
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