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Key Documents

Safety Information

932434

Sigma-Aldrich

TcTa

≥99% (HPLC)

Synonym(s):

4,4′,4′′-Tri-9-carbazolyltriphenylamine, 4,4′,4′′-tris(carbazol-9-yl)-triphenylamine, 4,4′,4-Tris(carbazol-9-yl)triphenylamine, Tris(4-(9H-carbazol-9-yl)phenyl)amine

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About This Item

Empirical Formula (Hill Notation):
C54H36N4
CAS Number:
139092-78-7
Molecular Weight:
740.89
MDL number:
MFCD03093250
UNSPSC Code:
41106305
NACRES:
NA.23

grade

sublimed grade

Quality Level

100

description

μh ≈ 3.0 x 10-4 cm2 V−1 s−1
μe ≈ 1.0 x 10-8 cm2 V−1 s−1

Assay

≥99% (HPLC)

loss

0.5% TGA, > 410 °C (weight loss)

mp

299 °C

solubility

THF: soluble
chloroform: soluble
dichloromethane: soluble

λmax

293 nm±5 nm in THF
326 nm±5 nm in THF

fluorescence

λem 385 nm±10 nm in THF

Orbital energy

HOMO 5.8 eV 
LUMO 2.4 eV 

SMILES string

c1ccc2c(c1)n(-c3ccc(cc3)N(c4ccc(cc4)-n5c6ccccc6c7ccccc57)c8ccc(cc8)-n9c%10ccccc%10c%11ccccc9%11)c%12ccccc2%12

InChI

1S/C54H36N4/c1-7-19-49-43(13-1)44-14-2-8-20-50(44)56(49)40-31-25-37(26-32-40)55(38-27-33-41(34-28-38)57-51-21-9-3-15-45(51)46-16-4-10-22-52(46)57)39-29-35-42(36-30-39)58-53-23-11-5-17-47(53)48-18-6-12-24-54(48)58/h1-36H

InChI key

AWXGSYPUMWKTBR-UHFFFAOYSA-N

Related Categories

Application

It′s a star-shaped carbazole hole-transporting material popularly used in OLEDs as solution-processable fluorescent emitting host, or as electron-blocking layer for quantum-dot light-emitting diodes (QD-LEDs).
TCTA is widely used as a hole transport material in OLED and organic photovoltaic (OPV) devices. It possesses excellent hole injection and transport properties, helping to efficiently transport positive charges (holes) from the anode to the emitting layer.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

932434-VAR:
932434-1G:
932434-BULK:

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Benjamin T Feleki et al.
ACS applied energy materials, 4(4), 3033-3043 (2021-06-01)
Parasitic optical absorption is one of the root causes of the moderate efficiency of metal halide perovskite solar cells (PSCs) with an opaque substrate configuration. Here, we investigate the reduction of these optical losses by using thin (7-10 nm), undoped

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