| Autor: |
Wong, Michael Y., Hedley, Gordon J., Xie, Guohua, Kölln, Lisa S., Samuel, Ifor D. W., Pertegás, Antonio, Bolink, Henk J., Zysman-Colman, Eli |
| Přispěvatelé: |
EPSRC, University of St Andrews. School of Physics and Astronomy, University of St Andrews. Condensed Matter Physics, University of St Andrews. EaSTCHEM, University of St Andrews. School of Chemistry |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Předmět: |
|
| ISSN: |
0897-4756 |
| Popis: |
EZ-C thanks the University of St Andrews for support. The authors are grateful to the EPSRC for financial support (grants EP/J01771X and EP/J00916). IDWS is a Royal Society Wolfson Research Merit Award Holder. Two novel charged organic thermally activated delayed fluorescence (TADF) emitters, 1 and 2, have been synthesized. Their TADF behavior is well-supported by the multiexponential decay of their emission (nanosecond and microsecond components) and the oxygen dependence of the photoluminescence quantum yields. Spin-coated electroluminescent devices have been fabricated to make light-emitting electrochemical cells (LEECs) and organic light-emitting diodes (OLEDs). The first example of a non-doped charged small organic molecule LEEC is reported and exhibited an external quantum efficiency (EQE) of 0.39% using 2. With a multilayer architecture, a solution-processed OLED device using neat 2 as the emitting layer gave an EQE of 5.1%, the highest reported to date for a nondoped solution-processed small molecule organic TADF OLED. These promising results open up a new area in light-emitting materials for the development of low-cost TADF LEECs. Publisher PDF |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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