Bearing four pyridyl groups, B3PyPB is electron deficient and has high electron mobility. It is widely used as an electron-transport material (ETL) in OLED devices. With a deep HOMO energy level (6.60 eV), B3PyPB is also used as a hole-blocking layer material (EBL).
Having a high triplet energy (ET = 2.77 eV), B3PyPB is used in phosphorescent OLEDs to suppress triplet quenching of the light-emitting molecules, leading to higher external quantum efficiency - hence improving the device performance.
*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials for OLED devices page.
ITO (90 nm)/HATCN (5 nm)/TAPC (65 nm)/10 wt% fac -Ir(mpim)3 -doped TCTA (5 nm)/10 wt% fac -Ir(mpim)3 -doped 26DCzPPy (5 nm)/B3PyPB (65 nm)/Liq (2 nm)/Al (80 nm) [6]
Colour
Blue
Current Efficiency@100 cd/m2
73.2 cd/A
EQE@100 cd/m2
29.6%
Power Efficiency@100 cd/m2
76.5 lm W-1
*For chemical structure information, please refer to the cited references.
Pricing
Grade
Order Code
Quantity
Price
Sublimed (>99.0% purity)
M2127A1
100 mg
£151.00
Sublimed (>99.0% purity)
M2127A1
250 mg
£302.00
Sublimed (>99.0% purity)
M2127A1
500 mg
£513.00
Sublimed (>99.0% purity)
M2127A1
1 g
£872.00
MSDS Documentation
B3PyPB MSDS sheet
Literature and Reviews
High efficiency solution processed OLEDs using a thermally activated delayed fluorescence emitter, R. Komatsu et al., Synth. Met., 202, 165–168 (2015); doi: 10.1016/j.synthmet.2015.02.009.
Ultra high-efficiency multi-photon emission blue phosphorescent OLEDs with external quantum efficiency exceeding 40%, H. Sasabe et al., Org. Electron., 13, 2615–2619 (2012); doi: 0.1016/j.orgel.2012.07.019.
Significant Enhancement of Blue OLED Performances through Molecular Engineering of Pyrimidine-Based Emitter, K. Nakao et al., Adv. Optical Mater., 5, 1600843 (2017); DOI: 10.1002/adom.201600843.
High-Efficiency Blue and White Organic Light-Emitting Devices Incorporating a Blue Iridium Carbene Complex, H. Sasabe et al., Adv. Mater., 22, 5003–5007 (2010); DOI: 10.1002/adma.201002254.
High-Performance Green OLEDs Using Thermally Activated Delayed Fluorescence with a Power Efficiency of over 100 lm/W, Y. Seino et al., Adv. Mater., 28, 2638–2643 (2016); DOI: 10.1002/adma.201503782.
Low-Driving-Voltage Blue Phosphorescent Organic Light-Emitting Devices with External Quantum Efficiency of 30%, K. Udagawa et al., Adv. Mater., 26, 5062–5066 (2014); DOI: 10.1002/adma.201401621.
Recent Progress in High-Efficiency Blue-Light-Emitting Materials for Organic Light-Emitting Diodes, Y. Im et al., Adv. Funct. Mater., 27, 1603007 (2017); DOI: 10.1002/adfm.201603007.
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.