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932469

Sigma-Aldrich

4,4′,4′′-Tris(N-(naphthalen-2-yl)-N-phenyl-amino)-triphenylamine

Synonym(s):

TSPO1, Diphenyl(4-(triphenylsilyl)phenyl)phosphine oxide

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About This Item

Empirical Formula (Hill Notation):
C36H29OPSi
CAS Number:
1286708-86-8
Molecular Weight:
536.67
UNSPSC Code:
12352116
NACRES:
NA.23

grade

sublimed grade

Quality Level

100

description

μh ≈ 1.1 x 10-6 cm2 V−1 s−1
μe ≈ 5.7 x 10-6 cm2 V−1 s−1

Assay

≥97% (HPLC)

loss

0.5% TGA, > 300 °C (weight loss)

mp

236  °C

solubility

chloroform: soluble
dichloromethane: soluble
toluene: soluble

λmax

266 nm±5 nm in dichloromethane

fluorescence

λem 298 nm±10 nm in dichloromethane

Orbital energy

HOMO 6.79 eV 
LUMO 2.52 eV 

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Application

4,4′,4′′-Tris(N-(naphthalen-2-yl)-N-phenyl-amino)-triphenylamine (TSPO1), also known as diphenyl(4-(triphenylsilyl)phenyl)phosphine oxide, is popularly used as a solution-processable phosphorescent host in optoelectronic devices. It has a μh around 1.1 x 10-6 cm2 V−1 s−1 and a μe of about 5.7 x 10-6 cm2 V−1 s−1.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCT2038

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Ji Su Moon et al.
RSC advances, 8(31), 17025-17033 (2018-05-09)
Two bipolar host materials, 8-(9H-carbazol-9-yl)-5-(pyridin-2-yl)-5H-pyrido[3,2-b]indole (CzCbPy) and 5-(6-(9H-carbazol-9-yl)pyridin-2-yl)-8-(9H-carbazol-9-yl)-5H-pyrido[3,2-b]indole (2CzCbPy), were synthesized for deep blue thermally activated delayed fluorescence organic light emitting diodes (TADF OLEDs). Both CzCbPy and 2CzCbPy hosts possess bipolar characteristic with high polarity, which results in high delayed
Ideal blue thermally activated delayed fluorescence emission assisted by a thermally activated delayed fluorescence assistant dopant through a fast reverse intersystem crossing mediated cascade energy transfer process
Han, Si Hyun, et al.
Journal of Material Chemistry C, 7, 3082-3089 (2019)
Hyun-Gu Kim et al.
ACS applied materials & interfaces, 11(1), 26-30 (2018-12-14)
The development of highly efficient blue organic light-emitting diodes (OLEDs) with good stability is currently the most important issue in OLED displays and lighting. This paper reports an efficient blue fluorescent OLED based on a deep-blue-emitting phosphorescent sensitizer [(dfpysipy)2Ir(mpic)] and

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