B3PyPB

B3PyPB, ETL and HBL material in OLED devices

Used to improve the performance of PhOLEDs, 1,3-Bis(3,5-dipyrid-3-ylphenyl)benzene, CAS No. 1030380-38-1, 1,3-Bis[3,5-di(pyridin-3-yl)phenyl]benzene, BmPyPB, BmPyPhB

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 (E_T = 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.

General Information

Product Details

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.

Chemical Structure

Device Structure(s)

Device structure	ITO (130 nm)/TAPC (60 nm)/TCTA:7 wt% FIrpic (5 nm)/TCTA:FIrpic 20 wt% (5 nm)/B3PyPB (20 nm)/ B3PyPB:25 wt% Liq (35 nm)/Liq (1 nm)/Al (100 nm) [2]
Colour	Blue
Current Efficiency@100 cd/m2	51.6 cd/A
EQE@100 cd/m2	21.8%
Power Efficiency@100 cd/m2	56.5 lm W-1

Device structure	ITO (130 nm)/TAPC (60 nm)/TCTA:7 wt% FIrpic (5 nm)/TCTA:FIrpic 20 wt% (5 nm)/B3PyPB (20 nm)/B3PyPB:25wt% Liq (35 nm)/Liq (1 nm)/Al (1 nm)/MoO3 (5 nm)/TAPC (60 nm)/TCTA:7 wt% FIrpic (5 nm)/TCTA: FIrpic 20 wt% (10 nm)/B3PyPB (20 nm)/B3PyPB: 25wt% Liq (35 nm /Liq (1 nm) [2]
Colour	Blue
Current Efficiency@100 cd/m2	90.0 cd/A
EQE@100 cd/m2	41.1%
Power Efficiency@100 cd/m2	40.8 lm W-1

Device structure	ITO/triphenylamine-containing polymer: PPBI (20 nm)/TAPC (20 nm)/ 10 wt% CzAc-26DPPM:mCP (10 nm)/10 wt% CzAc-26DPPM:DPEPO (10 nm)/B3PyPB (50 nm)/LiF (0.5 nm)/Al (100 nm) [3]
Colour	Blue
Current Efficiency@100 cd/m2	53.9 cd/A
EQE@100 cd/m2	22.8%
Power Efficiency@100 cd/m2	59.2 lm W-1

Device structure	ITO/triphenylamine-containing polymer: PPBI* (20 nm)/TAPC (20 nm)/ 10 wt% CzAc-26DPPM:mCP (10 nm)/10 wt% CzAc-26DPPM:DPEPO (10 nm)/B3PyPB (50 nm)/LiF (0.5 nm)/Al (100 nm) [4]
Colour	Blue
Max. Current Efficiency	28.6 cd/A
Max. EQE	18.6%
Max. Power Efficiency	35.9 lm W-1

Device structure	ITO (130 nm)/TAPC (40 nm)/TCTA (5 nm)/ PQ2Ir(dpm) 2 wt % doped CBP (1 nm)/Ir(ppy)3 6 wt % doped CBP (1 nm)/Ir(dbfmi)* 10 wt % doped PO9 (10 nm)/B3PyPB (50 nm)/LiF (0.5 nm)/Al (100 nm) [4]
Colour	White
Max. Current Efficiency	53.7 cd/A
Max. EQE	23.3%
Max. Power Efficiency	55.2 lm W-1

Device structure	ITO (130 nm)/TAPC (35 nm)/5 wt% 4CzIPN-doped CBP (15 nm)/B3PyPB (65 nm)/LiF (0.8 nm)/Al (100 nm) [5]
Colour	Green
Max Current Efficiency	71.2 cd/A
Max EQE	21.8%
Max. Power Efficiency	60.9 lm W-1

Device structure	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

MSDS Documentation

B3PyPB MSDS sheet

Literature and Reviews

1. 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.
2. 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.
3. 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.

View Literature and Reviews