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922501

Sigma-Aldrich

TXO-TPA

≥99% (HPLC)

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Synonym(s):
2-[4-(Diphenylamino) phenyl]-10, 10-dioxide-9H-thioxanthen-9-one
Empirical Formula (Hill Notation):
C31H21NO3S
CAS Number:
Molecular Weight:
487.57
UNSPSC Code:
12352302
NACRES:
NA.23

Quality Level

Assay

≥99% (HPLC)

energy gap

0.052 eV, delta EST

loss

0.5% TGA, > 250 °C (weight loss)

solubility

toluene: soluble

fluorescence

λem 625 nm (film)

Orbital energy

HOMO -5.4 eV 
LUMO -3.5 eV 

λ

in toluene

UV absorption

λ: 299 nm±5 nm Amax
λ: 415 nm±5 nm Amax

Related Categories

Application

Sublimed high purity material used as a dopant for orange-red TADF OLED.

EQE of 9.75 %.
TXO-TPA can be employed as a hole transport layer in organic light-emitting diodes (OLEDs) and organic photovoltaic (OPV) devices. This material exhibits good charge transport properties, contributing to the overall performance and efficiency.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Manish Kumar et al.
ACS omega, 5(5), 2196-2204 (2020-02-18)
Charge balance, concentration quenching, and exciton confinement are the most important factors for realizing the use of thermally activated delayed fluorescence (TADF) emitters for organic light-emitting diodes. Red-orange organic light-emitting diodes of a TADF emitter 2-[4 (diphenylamino)phenyl]-10,10-dioxide-9H-thioxanthen-9-one (TXO-TPA) have been

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