Abstract
The design of efficient and concentration-insensitive metal-free thermally activateddelayed fluorescence (TADF) materials is reported. Blue and green organic light-emitting diodes (OLEDs) containing a hole-transport layer, an undoped TADF emissive layer, and an electron-transport layer achieve maximum external quantum efficiencies of 19%, which is comparable to the best doped OLEDs.
Original language | English |
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Pages (from-to) | 2096-2100 |
Number of pages | 5 |
Journal | Advanced Materials |
Volume | 27 |
Issue number | 12 |
DOIs | |
State | Published - 25 Mar 2015 |
Keywords
- electroluminescence
- organic light-emitting diodes
- thermally activated delayed fluorescence
- undoped materials