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DPEPO, one of the most popular materials used to host blue TADF-based OLEDs
High-purity (>99.0%) and available online for priority dispatch
DPEPO, with steric ortho-substituted diphenylphosphine oxide (DPPO) groups, is one of the most popular large band-gap materials used to host blue TADF-based OLEDs.
This substitution with electron-withdrawing DPPO moieties not only improves its thermal and morphological stability, but also makes DPEPO an electron-transport layer material. Because of its deep HOMO energy level, DPEPO also acts as a hole-blocking layer material in TADF-OLED devices.
Triplet exciton confinement in green organic light-emitting diodes containing luminescent charge-transfer Cu(I) complexes, Q. Zhang, et al., Adv. Funct. Mater.22, 2327–2336 (2012); DOI: 10.1002/adfm.201101907.
Highly Efficient Simplified Single-Emitting-Layer Hybrid WOLEDs with Low Roll-off and Good Color Stability through Enhanced Förster Energy Transfer, D. Zhang et al., ACS Appl. Mater. Interfaces, 7 (51), 28693–28700 (2015); DOI: 10.1021/acsami.5b10783.
High-Efﬁciency Blue Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence from Phenoxaphosphine and Phenoxathiin Derivatives, S. Lee et al., Adv. Mater., 28, 4626–4631 (2016); DOI: 10.1002/adma.201506391.
High-efficiency deep-blue organic light-emitting diodes based on a thermally activated delayed fluorescence emitter, S. Wu et al., J. Mater. Chem. C, 2,421 (2014); DOI: 10.1039/c3tc31936a.
Design Strategy for 25% External Quantum Efﬁ ciency in Green and Blue Thermally Activated Delayed Fluorescent Devices, D. Lee et al., Adv. Mater. 2015, 27, 5861–5867 (2015); DOI: 10.1002/adma.201502053.
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