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Product Code M781-1g
Price $325 ex. VAT

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35DCzPPy, one of the most common bipolar host materials used in OLEDs

High-purity (>98.0%) and available online for priority dispatch


Combining a carbazole electron donor with high triplet energy, and a pyridine electron acceptor with high electron affinity, 3,5-bis(3-(carbazol-9-yl)phenyl)pyridine (35DCzPPy) is one of the most common bipolar host materials used in organic light-emitting diodes.

35DCzPPy is an isomer of 26DCzPPy, differing in the position of functionalisations of the central pyridine ring. 35DCzPPy is more electron-rich, so 26DCzPPy has a more balanced hole and electron injection and transport than 35DCzPPy.

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.

General Information

CAS number 1013405-25-8
Chemical formula C41H27N3
Molecular weight 561.67 g/mol
Absorption λmax 307 nm, 317 nm (in CH2Cl2)
Fluorescence λem 347 nm (in CH2Cl2)
HOMO/LUMO HOMO = 6.18 eV, LUMO = 2.75 eV [1]
Synonyms 3,5-bis(3-(9H-carbazol-9-yl)phenyl)pyridine
Classification / Family Carbazole derivatives, Bipolar charge transport layer materials, Phosphorescent host materials, OLEDs, Organic electronics

Product Details

Purity >98.0%
Melting point TGA > 290 °C (0.5% weight loss)
Colour White powder/crystals

Chemical Structure

chemical structure of 35dczppy
Chemical Structure of 3,5-bis(3-(9H-carbazol-9-yl)phenyl)pyridine (35DCzPPy)

Device Structure(s)

Device structure  ITO (130 nm)/35DCzPPy:MoO3 (30 nm)/35DCzPPy (10 nm)/ 35DCzPPy:12 wt.% FIrpic (30 nm)/35DCzPPy (10 nm)/ 35DCzPPy:Cs2CO3 (20 nm)/Al (80 nm) [1]
Colour Blue blue light emitting device
EQE @ 100 cd/m2 16.9%
Current Efficiency @ 1000 cd/m2 27.2 cd/A
Power Efficiency @ 1000 cd/m2 19.6 lm/W
Device structure  ITO/TPDPES*:TBPAH* (20nm)/3DTAPBP* (30nm)/35DCzPPy:11 wt % FIrpic (10nm)/TmPyPBP (40nm)/LiF (0.5 nm)/Al (100 nm) [2]
Colour Blue blue light emitting device
EQE @ 100 cd/m2 19.1%
Power Efficiency @ 100 cd/m2 34.6 lm/W
Device structure ITO (130 nm)/35DCzPPy:MoO3 (30 nm)/35DCzPPy (10 nm)/35DCzPPy:10 wt.% Ir(ppy)(30 nm)/35DCzPPy (10 nm)/35DCzPPy:Cs2CO3 (20 nm)/Al (80 nm) [1]
Colour Green green light emitting device
EQE @ 100 cd/m2 1.5%
Power Efficiency @ 100 cd/m2 3.2 lm W−1
Device structure ITO (130 nm)/35DCzPPy:MoO3 (30 nm)/35DCzPPy (10 nm)/35DCzPPy:4 wt.% Ir(piq)3 (30 nm)/35DCzPPy (10 nm)/35DCzPPy:Cs2CO3 (20 nm)/Al (80 nm) [1]
Colour Red red light emitting device
EQE @ 100 cd/m2 7.0%
Power Efficiency @ 100 cd/m2 2.7 lm W−1

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

MSDS Documentation

35DCzPPy MSDS35DCzPPy MSDS sheet

Literature and Reviews

  1. High-efficiency red, green and blue phosphorescent homojunction organic light-emitting diodes based on bipolar host materials, C. Cai et al., Org. Electronics 12, 843-850 (2011); doi:10.1016/j.orgel.2011.01.021.
  2. Pyridine-Containing Bipolar Host Materials for Highly Efficient Blue Phosphorescent OLEDs, S. Su et al., Chem. Mater., 20, 1691–1693 (2008); DOI: 10.1021/cm703682q.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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