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	λ_max 292, 337 nm (THF)
Fluorescence	λ_em 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

Purity

>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 .

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
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
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 1,3,5-tris(carbazol-9-yl)benzene - sublimed (tcp)

Pricing

Grade	Order Code	Quantity	Price
Sublimed (>99.0% purity)	M751	1 g	[[price gbp="200"]]
Unsublimed (>98.0% purity)	M752	1 g	[[price gbp="130"]]
Unsublimed (>98.0% purity)	M752	5 g	[[price gbp="500"]]
Sublimed (>99.0% purity)	M751	5 g	[[price gbp="760"]]

MSDS Documentation

Literature and Reviews

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.
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.
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.

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.