Efficient and Stable Deep-Blue Fluorescent Organic Light-Emitting Diodes Employing a Sensitizer with Fast Triplet Upconversion
| Autor: | Saul T. E. Jones, Alexander J. Gillett, Song Xiaozeng, Lian Duan, Minghan Cai, Guomeng Li, Hanqing He, Dongdong Zhang, Bluebell H. Drummond, Dan Credgington |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Fluorescence Luminance Photon upconversion 0104 chemical sciences Intersystem crossing Mechanics of Materials OLED General Materials Science 0210 nano-technology Deep blue Diode |
| Zdroj: | Advanced materials (Deerfield Beach, Fla.). 32(19) |
| ISSN: | 1521-4095 |
| Popis: | Multiple donor-acceptor-type carbazole-benzonitrile derivatives that exhibit thermally activated delayed fluorescence (TADF) are the state of the art in efficiency and stability in sky-blue organic light-emitting diodes. However, such a motif still suffers from low reverse intersystem crossing rates (kRISC ) with emission peaks 60 h at an initial luminance of 1000 cd m-2 . |
| Databáze: | OpenAIRE |
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