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Product Code M751-1g
Price £200 ex. VAT

tCP, an excellent HTL material and a phosphorescent host material for LEDs

Sublimed and unsublimed grades are available for tCP

With three carbazole units attached to the benzene ring, 1,3,5-tris(carbazol-9-yl)benzene (tCP) is electron-rich and an excellent hole-transporting layer (HTL) material. It is mainly used as a phosphorescent host material for light-emitting diodes.

General Information

CAS number 148044-07-9
Chemical formula C42H27N3
Molecular weight 573.68 g/mol
Absorption λmax 292, 337 nm (THF)
Fluorescence λem 343, 358 nm (THF)
HOMO/LUMO HOMO = 5.8 eV, LUMO = 2.3 eV
  • TCB
  • tCP
  • 1,3,5-tris(N-carbazolyl)benzene
Classification / Family Carbazole derivatives, Hole-injection materials, Hole-transporting materials, Phosphorescent host materials, Organic light-emitting Diodes (OLEDs), Organic electronics, Sublimed materials.

Product Details


>99.0% (sublimed)

>98.0% (unsublimed)

Melting point 330 °C
Appearance White powder/crystals

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

Chemical Structure

TCP chemical structure
Chemical Structure of 1,3,5-tris(carbazol-9-yl)benzene (tCP)

Device Structure(s)

Device structure ITO/75 wt% TPD:25 wt% PC (50nm) /TCTA (10nm)/6 % PtL30Cl*:94 % [TCTA: TCP] [1:1] (30 nm)/TAZ (30 nm)/LiF/Al [1]
Colour White white light emitting device
EQE@500 cd/m2 11.3%
Current Efficiency@500 cd/m2 23.5 cd/A
Bias 9.3 V
Device structure ITO/TAPC 50 nm/tCP:BPCC (20 wt%) 10 nm/TemPPB* 50 nm/LiF 1 nm/Al 100 nm [2]
Colour Blue blue light emitting device
Max. EQE 4.9%
Max. Power Efficiency 1.5 lm W-1
Max. Current Efficiency 2.2 cd/A
Max. Luminance 2,790 cd/m2

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

HPLC Characterisation

HPLC trace of TCP
HPLC trace of 1,3,5-tris(carbazol-9-yl)benzene - sublimed (tcp)


Grade Order Code Quantity Price
Sublimed (>99.0% purity) M751 1 g £200
Unsublimed (>98.0% purity) M752 1 g £130
Unsublimed (>98.0% purity) M752 5 g £500
Sublimed (>99.0% purity) M751 5 g £760

MSDS Documentation


Literature and Reviews

  1. Blue-shifting the monomer and excimer phosphorescence of tridentate cyclometallated platinum(II) complexes for optimal white-light OLEDs, L. Murphy et al., Chem. Commun., 48, 5817-5819 (2012), DOI: 10.1039/C2CC31330H.
  2. A pure blue emitter (CIEy ≈ 0.08) of chrysene derivative with high thermal stability for OLED, Y. Chung et al., J. Mater. Chem. C, 3, 1794-1798 (2015), DOI: 10.1039/C4TC02669A.
  3. A study on the characteristics of OLEDs using Ir complex for blue phosphorescence, S-Y. Kim et al., Curr. Appl. Phys., 7 (4), 380-383 (2007), doi:10.1016/j.cap.2006.09.031.
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