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DNTPD, HTL and HIL material in OLED and perovskite solar cell devices
Used to improve the current efficiency at ITO interface
Bearing four triarylamine units, DNTPD is electron rich and normally used as hole transport or hole injection layer material in OLED and perovskite solar cell devices. It is an extended structure of TPD and NPB that are widely used in organic electronics.
DNTPD layer at ITO interface can reduce the hole injection barrier while at the same time improve the current efficiency by balancing the holes and electrons in the emitting layer of an OLED device.
Blue Phosphorescent Organic Light-Emitting Devices with the Emissive Layer of mCP:FCNIr(pic), J. Jang et al., Adv. Mater. Sci. & Eng., 192731 (2012); doi:10.1155/2012/192731.
Highly Efficient Red Phosphorescent Dopants in Organic Light-Emitting Devices, D. Kim et al., Adv. Mater., 23, 2721–2726 (2011); DOI: 10.1002/adma.201100405.
External Quantum Effi ciency Above 20% in Deep Blue Phosphorescent Organic Light-Emitting Diodes, S. Jeon et al., Adv. Mater., 23, 1436–1441 (2011); DOI: 10.1002/adma.201004372.
Indolo Acridine-Based Hole-Transport Materials for Phosphorescent OLEDs with Over 20% External Quantum Efficiency in Deep Blue and Green, M. Park et al., Chem. Mater., 23, 4338–4343 (2011); doi: 10.1021/cm201634w.
The Real Role of 4,4'-Bis[N-[4-{N,N-bis(3-methylphenyl)amino}phenyl]-Nphenylamino]biphenyl (DNTPD) Hole Injection Layer in OLED: Hole Retardation and Carrier Balancing, H. Oh et al., Bull. Korean Chem. Soc., 35 (3) 929; dio: 10.5012/bkcs.2014.35.3.929.
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