26DCzPPy

Order Code: M771
MSDS sheet

Price

(excluding Taxes)

£136.00


General Information

CAS number 1013405-24-7
Chemical formula C41H27N3
Molecular weight 561.67 g/mol
Absorption λmax 239, 292 nm (in CH2Cl2)
Fluorescence λem 410 nm (in CH2Cl2)
HOMO/LUMO HOMO = 6.05 eV, LUMO = 2.56 eV [1]
Synonyms 2,6-bis[3-(9H-Carbazol-9-yl)phenyl]pyridine; DCzPPy
Classification / Family Carbazole derivatives, Bipolar charge transport layer materials, Phosphorescent host materials, OLEDs, Organic electronics

 

Product Details

Purity >99.5%
Melting point TGA > 370 °C (0.5% weight loss)
Colour White powder/crystals

  

Chemical Structure

Chemical structure of 26DCzPPY
Chemical Structure of 2,6-bis[3-(9H-Carbazol-9-yl)phenyl]pyridine (26DCzPPy); CAS No. 1013405-24-7; Chemical Formula C41H27N3.

Applications

Combining carbazole electron donors with a high triplet energy and a pyridine electron acceptor with a high electron affinity, 2,6-bis(3-(carbazol-9-yl)phenyl)pyridine (26DCzPPy) is one of the most popular bipolar host materials used in organic light-emitting diodes.

Bipolar host materials are the molecules composed of an electron-donating moiety capable of mediating hole injection and transportation and an electron-withdrawing moiety capable of mediating electron injection and transportation.

Device structure  ITO/TAPC (40 nm)/TCTA (2 nm)/26DCzPPy:TCTA:FIrpic (0.4:0.4:0.2) (5 nm)/26DCzPPy:PPT:FIrpic (0.4:0.4:0.2) (5 nm)/3TPYMB (55 nm)/CsF (2 nm)/Al (180 nm) [1]
Colour Blue   blue
Current Efficiency @ 1000 cd/m2 42 cd/A
Power Efficiency @ 1000 cd/m2 30 lm/W
Device structure ITO/TAPC (40 nm)/TCTA (2 nm)/26DCzPPy:TCTA :FIrpic/26DCzPPy:TCTA:FIrpic:Os/26DCzPPy:PPT:FIrpic:Os/26DCzPPy: PPT:FIrpic/3TPYMB (55 nm)/CsF (2 nm)/Al (180 nm) [1]                    
Colour White   white
Current Efficiency @ 1000 cd/m2 35.7 cd/A
Power Efficiency @ 1000  cd/m2 24 lm W−1
Device structure  ITO/PEDOT: PSS (60 nm)/26DCzPPy:FIrpic (10 wt.%, 60 nm)/TmPyPB (30 nm)/LiF (1 nm)/Al (100 nm) [2]
Colour Blue   blue
Max. EQE 12.1%
Max Current Efficiency 21.8 cd/A
Max Power Efficiency 12.7 lm/W
Device structure                      ITO/PEDOT: PSS (60 nm)/TCTA:26DCzPPy:FIrpic (10 wt.%, 60 nm)/TmPyPB (30 nm)/LiF (1 nm)/Al (100 nm) [2]
Colour Blue   blue
Max. EQE 14.6%
Max Current Efficiency 25.1 cd/A
Max Power Efficiency 15.7 lm/W

Device structure

ITO/TAPC:MoOx (10 nm, 15 wt.%)/TAPC(35 nm)/TcTa:Ir(BT)2(acac) (5 nm, 4 wt.%)/26DCzPPy:FIrpic (5 nm, 15 wt.%)/26DCzPPy:Ir(BT)2(acac) (5 nm, 4 wt.%)/BPhen (40 nm)/Cs2CO3 (1 nm)/Al (100 nm) [3]
Colour White   white
Max. EQE 13.2%
Max. Current Efficiency 35.0 cd/A
Max. Power Efficiency 30.6 lm W1

Device structure

Si/SiO2/Al (80 nm)/MoOx: TAPC (43 nm, 15 wt.%)/TAPC (10 nm)/Ir(piq)3:TcTa (3 nm, 6%)/TcTa (2 nm)/FIrpic:26DCzPPy (5 nm, 12 wt.%)/BPhen (2 nm)/PO-01*:26DCzPPy (5 nm, 6 wt.%)/BPhen (40 nm)/Cs2CO3 (1 nm)/Al (2 nm)/Cu (18 nm)/TcTa (60 nm) [4]
Colour White   white
EQE @ 1000 cd/m2 10%
Current Efficiency @ 1000 cd/m2 25.6 cd/A
Power Efficiency @ 1000 cd/m2 20.1 lm W1
Device structure PEN (120 mm)/ITO (170 nm)/MeO-TPD:F4-TCNQ (100 nm, 4%)/NPB (15 nm)/TCTA (5 nm)/TCTA:Ir(dmppy)2(dpp) (1 nm, 20%)/TCTA:FIrpic (4 nm, 7%)/26DCzPPy:FIrpic (4 nm, 20%)/26DCzPPy:Ir(dmppy)2(dpp) (1 nm, 20%)/TmPyPB (50 nm)/LiF (1 nm)/Al (200 nm) [5]                
Colour White   white
Max. Current Efficiency 96.8 cd/A
Max. Power Efficiency 101.3 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    blue
EQE @ 100 cd/m2 29.6%
Current Efficiency @ 100 cd/m2 73.2 cd/A
Power Efficiency @ 100 cd/m2 75.6 lm/W
Device structure                                            ITO/PEDOT:PSS (50 nm)/TCTA (30 nm)/26DCzPPy:Ir(mppy)3 94:6 (40 nm)/TPBI (40 nm)/LiF (0.8 nm)/Al (100 nm)  [7]
Colour Green    green
Current Efficiency @ 1000 cd/m2 41.9 cd/A
Power Efficiency @ 1000 cd/m2 23.4 lm W1  
Device structure                                       ITO/TAPC (40 nm)/TcTa (10 nm)/5a* (4%):TcTa (5 nm)/5a* (4%):26DCzPPy (10 nm)/TmPyPB (40 nm)/LiF(1 nm)/Al(100 nm) [8]
Colour                                  Red    red
Max. Luminance 11,023 cd/m2
Max. Current Efficiency 17.36 cd/A
Max. Power Efficiency 14.73 lm W1  

*For chemical structure information please refer to the cited references.

 

Characterisation (HPLC)

hplc 26dczppy
HPLC trace of 2,6-bis[3-(9H-Carbazol-9-yl)phenyl]pyridine (26DCzPPy).

 

Literature and Reviews

  1. Blue and white phosphorescent organic light emittingdiode performance improvementbyconfining electrons and holes inside double emitting layers, Y-S.Tsai et al., J. Luminescence 153, 312–316 (2014); http://dx.doi.org/10.1016/j.jlumin.2014.03.040.
  2. Soluble processed low-voltage and high efficiency blue phosphorescent organic light-emitting devices using small molecule host systems, Y. Doh et al., Org. Electronics, 13, 586–592 (2012); doi:10.1016/j.orgel.2012.01.003.
  3. Color stable and low driving voltage white organic light-emitting diodes with low efficiency roll-off achieved by selective hole transport buffer layers, Z. Zhang et al., Org. Electronics 13, 2296–2300 (2012); http://dx.doi.org/10.1016/j.orgel.2012.07.001.
  4. High performance top-emitting and transparent white organic light-emitting diodes based on Al/Cu/TcTa transparent electrodes for active matrix displays and lighting applications, Z. Zhang et al., Org. Electronics,14, 1452–1457 (2013); http://dx.doi.org/10.1016/j.orgel.2013.03.007.
  5. Extremely stable-color flexible white organic lightemitting diodes with efficiency exceeding 100 lmW-1, B. Liu et al., J. Mater. Chem. C, 2, 9836 (2014); DOI: 10.1039/c4tc01582g.
  6. 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.
  7. Interface and thickness tuning for blade coated small-molecule organic light-emitting diodes with high power efficiency, Y-F. Chang et al., Appl. Phys. Lett.,114, 123101 (2013); doi: 10.1063/1.4821881.
  8. Efficient red organic electroluminescent devices by doping platinum(II) Schiff base emitter into two host materials with stepwise energy levels, L. Zhou et al., Opt. Lett., 38 (14), 2373-2375 (2013);
    http://dx.doi.org/10.1364/OL.38.002373.