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2,6-Bis(9H-carbazol-9-yl)pyridine (PYD-2Cz) is composed of two electron-donating carbazole substituents with an electron deficient pyridine core unit. PYD-2Cz is a commonly-used bipolar host material for phosphorescent organic light‐emitting diodes (PHOLEDs). This is due to its wide band-gap and ability to be both an electron acceptor and donor.
With higher triplet energy levels (T1 = 2.93 eV), PYD-2Cz is an ideal candidate for hosting blue electrophosphorescence OLEDs.
Analyzing Bipolar Carrier Transport Characteristics of Diarylamino-Substituted Heterocyclic Compounds in Organic Light-Emitting Diodes by Probing Electroluminescence Spectra, K. Son et al., Chem. Mater., 20, 4439–4446 (2008); DIO: 10.1021/cm8004985.
Phenanthro[9,10-d]imidazole based new host materials for efficient red phosphorescent OLEDs, D. Tavgeniene et al., Dyes and Pigments, 137, 615-621 (2017); DIO: 10.1016/j.dyepig.2016.11.003.
Highly Efficient Organic Light-Emitting Diode Using A Low Refractive Index Electron Transport Layer, A. Salehi et al., Adv. Optical Mater., 1700197 (2017); DOI: 10.1002/adom.201700197.
Bridging the Efﬁ ciency Gap: Fully Bridged Dinuclear Cu(I)-Complexes for Singlet Harvesting in High-Efﬁ ciency OLEDs, D. Volz et al., Adv. Mater., 27, 2538–2543 (2015); DOI: 10.1002/adma.201405897.
Highly Luminescent Pincer Gold(III) Aryl Emitters: Thermally Activated Delayed Fluorescence and Solution‐Processed OLEDs, W-P. To et al., DOI: 10.1002/anie.201707193.
High-efficiency organic light-emitting diodes utilizing thermally activated delayed fluorescence from triazine-based donor–acceptor hybrid molecules, S. Lee et al., Appl. Phys. Lett. 101, 093306 (2012); doi: 10.1063/1.4749285.
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