TCP - 1,3,5-Tris(carbazol-9-yl)benzene

Order Code: M752
MSDS sheet


(excluding Taxes)



 Grade Order Code Quantity Price
Sublimed (>99.9% purity) M751 500 mg £95
Unsublimed (>99.8% purity) M752 1 g £79
Sublimed (>99.9% purity) M751 1 g £158
Unsublimed (>99.8% purity) M752 5 g £308


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
Synonyms 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


Sublimed* >99.9%

Unsublimed >99.8%
Melting point 330 °C
Colour White powder/crystals

*Sublimation is a technique used to obtain ultra pure grade chemicals to get rid of mainly trace metals and inorganic impurities. Sublimation happens under certain pressure for chemicals to only go through two physical stages from a solid sate to vapour (gas) and then the vapour condensed to a solid state on a cool surface (referred to as cold finger). The most typical examples of sublimation are iodine and dry ice. For more details about sublimation, please refer to sublimed materials for OLEDs and perovskites and our collection of sublimed materials.


Chemical Structure

tcp chemical structure
Chemical Structure of 1,3,5-tris(carbazol-9-yl)benzene (tCP); CAS No. 148044-07-9; Chemical Formula C42H27N3.



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.

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
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
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).


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.
  4. K. S. Son et al., Analyzing Bipolar Carrier Transport Characteristics of Diarylamino-Substituted Heterocyclic Compounds in Organic Light-Emitting Diodes by Probing Electroluminescence Spectra, Chem. Mater., 20, 4439–4446 (2008); DIO: 10.1021/cm8004985.