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B3PymPm is an isomer to B2PymPm and B4PymPm, with a 2-methylpyrimidine core structure with four pyridine pendants. It is electron-deficient and can be used in OLED devices as an electron-transporting or hole-blocking layer material.
B3PymPm is known to form hydrogen bonding in and between molecules. The intermolecular and intramolecular hydrogen bondings are believed to promote film morphology - hence enhancing charge mobility.
Due to its electron-deficient nature, together with TCTA, B3PymPm is also used in thermally activated delayed fluroescent (TADF) devices as an exciplex-forming cohost to fabricate highly-efficient fluorescent organic light-emitting diodes.
Development of high performance OLEDs for general lighting, H. Sasabe et al., J. Mater. Chem. C, 1, 1699 (2013); DOI: 10.1039/c2tc00584k.
A high performance inverted organic light emitting diode using an electron transporting material with low energy barrier for electron injection, J. Lee et al., Org. Electron., 12, 1763–1767 (2011); doi: 10.1016/j.orgel.2011.07.015.
High efficiency and non-color-changing orange organic light emitting diodes with red and green emitting layers, S. Lee et al., Org. Electron., 14, 1856–1860 (2013); doi: 10.1016/j.orgel.2013.04.020.
Design of Heteroleptic Ir Complexes with Horizontal Emitting Dipoles for Highly Efficient Organic Light-Emitting Diodes with an External Quantum Efficiency of 38%, K. Kim et al, Chem. Mater., 28, 7505−7510 (2016); DOI: 10.1021/acs.chemmater.6b03428.
Organic Light-Emitting Diodes with 30% External Quantum Efficiency Based on a Horizontally Oriented Emitter, S. Kim et al., Adv. Funct. Mater., 23, 3896–3900 (2013); DOI: 10.1002/adfm.201300104.
Highly Effi cient Organic Light-Emitting Diodes with Phosphorescent Emitters Having High Quantum Yield and Horizontal Orientation of Transition Dipole Moments, K. Kim et al., Adv. Mater., 26, 3844–3847 (2014); DOI: 10.1002/adma.201305733.
To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.