mSiTrz

CAS Number 2252416-90-1

MSDS

mSiTrz, ETL material and phosphorescent host

High-purity (>99.0%) and available online for priority dispatch

mSiTrz, 2-Phenyl-4,6-bis(3-(triphenylsilyl)phenyl)-1,3,5-triazine, is wide bandgap (4.11 eV) triphenylsilyl high triplet energy exciplex phosphorescent host with antriazine core. The electron deficient nature of the triazine give the rise of the electron transport property of mSiTrz which could also be used with some other electron donating hosts, i.e. oCBP to form exciplex hosts.

Mixed host oCBP:mSiTrz has achieved high external quantum efficiency over 20% with a color coordinate of (0.14, 0.16) deep blue and device lifetime of longer than 1000 h at 100 cd m^-2 [1].

General Information

CAS number	2252416-90-1
Chemical formula	C₅₇H₄₃N₃Si₂
Molecular weight	826.14 g/mol
Absorption	λ_max 274 nm
Photoluminescence	λ_em 393 nm
HOMO/LUMO	HOMO = 6.9 eV, LUMO = 2.79 eV; E_T = 3.08 eV [1]
Chemical name	2-Phenyl-4,6-bis(3-(triphenylsilyl)phenyl)-1,3,5-triazine
Synonyms	mSiTrz
Classification / Family	Triazine derivatives, Phosphorescent host materials, Sublimed materials, Semiconducting small molecules

Product Details

Purity	Sublimed >99.0% (HPLC)
Melting point	T_g = 108.21 °C (lit.)
Appearance	White powder/crystals

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the sublimed materials.

Chemical Structure

Device Structure(s)

Device structure	ITO (50 nm)/BPBPA:HATCN (40 nm:30%)/BPBPA (10 nm)/ PCZAC (10 nm)/Ir(cb)₃:oCBP:mSiTrz (30 nm)/DBFTrz (5 nm)/ZADN (20 nm)/LiF (1.5 nm)/Al (200 nm) [1]
Colour	Blue
Max. EQE	21.6%
Max. Power Efficiency	29.3 Im/W

Device structure	ITO (50 nm)/BPBPA:HATCN (40 nm:30%)/BPBPA (10 nm)/ PCZAC (10 nm)/Ir(cb)₃:26CzDBF:mSiTrz (30 nm)/DBFTrz (5 nm)/ZADN (20 nm)/LiF (1.5 nm)/Al (200 nm) [2]
Colour	Blue
Max. EQE	23%
Max. Power Efficiency	27.9 Im/W

Device structure	ITO (50 nm)/BPBPA:HATCN (40 nm:30%)/BPBPA (10 nm)/ PCZAC (10 nm)/Ir(cb)₃:46CzDBF:mSiTrz (30 nm)/DBFTrz (5 nm)/ZADN (20 nm)/LiF (1.5 nm)/Al (200 nm) [2]
Colour	Blue
Max. EQE	20.3%
Max. Power Efficiency	28.3 Im/W

Device structure	ITO (50 nm)/BPBPA:HATCN (40 nm:30%)/BPBPA (10 nm)/ PCZAC (10 nm)/Ir(cb)₃:28CzDBF:mSiTrz (30 nm)/DBFTrz (5 nm)/ZADN (20 nm)/LiF (1.5 nm)/Al (200 nm) [2]
Colour	Blue
Max. EQE	22.4%
Max. Power Efficiency	26.3 Im

Pricing

Grade	Order Code	Quantity	Price
Sublimed (>99.0% purity)	M2309A1	100 mg	£230
Sublimed (>99.0% purity)	M2309A1	250 mg	£460
Sublimed (>99.0% purity)	M2309A1	500 mg	£740
Sublimed (>99.0% purity)	M2309A1	1 g	£1300

MSDS Documentation

mSiTrz MSDS sheet

Literature and Reviews

Simultaneous Achievement of High Efficiency and Long Lifetime in Deep Blue Phosphorescent Organic Light-Emitting Diodes, K. Choi et al., Adv. Optical Mater., 7 (23); 1901374 (2019). DOI: 10.1002/adom.201901374.
Effects of Substitution Position of Carbazole-Dibenzofuran Based High Triplet Energy Hosts to Device Stability of Blue Phosphorescent Organic Light-Emitting Diodes, K. Choi et al., Molecules 26, 2804 (2021); DOI: 10.3390/molecules26092804.
Extremely Superb Efficiency and Lifetime of Deep Blue Phosphorescent OLEDs by Introducing Hypsochromic-shift Intermolecular Complex with Negligibly Small ΔEST and Fast Reverse Intersystem Crossing Rate, K. Kim et al., J. Mater. Chem. C, 9, 4029-4038 (2021); DOI: 10.1039/D0TC06107G..