SimCP2

CAS Number 944465-42-3

High Purity Sublimed Materials, Host Materials, Semiconducting Molecules, TADF Materials

SimCP2, ambipolar phosphorescent host materials

Enhance the lifetime and colour purity of OLED devices with high luminance

SimCP2, 3,5-di(9H-carbazol-9-yl)tetraphenylsilane, contains four electron-donating carbazole groups with two mCP units (a well known host material) joined together by a diphenylsilane link. The mCP joined structure makes SimCP2 more robust to support the growth of high quality thin films, and it is also believed that the rigid structure can enhance the lifetime and colour purity of OLED devices with high luminance.

SimCP2 also possesses a wide triplet band gap (E_T = 3.0 eV), high carrier mobility, ambipolar transport property and high glass transition temperature (T_g = 148 °C).

The solution processability of SimCP2 also gives it an advantage in device fabrication, where it can be used to enable higher device efficiency with homogeneous distribution of the host and guest in the emissive layer.

General Information

CAS number	944465-42-3
Chemical formula	C₇₂H₄₈N₄Si
Molecular weight	977.26 g/mol
Absorption*	λ_max 338 nm (dichloromethane)
Photoluminescence	λ_em 362 nm (dichloromethane)
HOMO/LUMO	HOMO = 6.1 eV, LUMO = 2.5 eV; E_T = 3.0 eV [1]
Chemical name	Bis[3,5-di(9H -carbazol-9-yl)phenyl]diphenylsilane
Synonyms	TPINQ
Classification / Family	Triphenylamine derivatives, Phosphorescent host materials, Sublimed materials, Semiconducting small molecules

* Measurable with an optical spectrometer, see our spectrometer application notes.

Product Details

Purity	Sublimed >99.0% (HPLC)
Melting point	T_g = 148 °C (lit.)
Appearance	White powder/crystals

* Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials.

Chemical Structure

Device Structure(s)

Device structure	ITO/PEDOT:PSS (60 nm)/PVK+SimCP2 (70 wt.%)+OXD-7 (70 wt.%)+FIrpic(5 wt.%)(70 nm)/CsF/Al [2]
Colour	Blue
Max. Current Efficiency	15.8 cd/A
Max. Power Efficiency	11 Im/W

Device structure	ITO (125 nm)/PEDOT:PSS (35 nm)/SimCP2:FIrpic (35 nm)/TPBi (28 nm)/LiF (0.8 nm)/Al (150 nm) [1]
Colour	Blue
Max. EQE	17.7%
Max. Power Efficiency	24.2 Im/W

Pricing

Grade	Order Code	Quantity	Price
Sublimed (>99.0% purity)	M2291A1	100 mg	£220
Sublimed (>99.0% purity)	M2291A1	250 mg	£440
Sublimed (>99.0% purity)	M2291A1	500 mg	£740
Sublimed (>99.0% purity)	M2291A1	1 g	£1200

MSDS Documentation

SimCP2 MSDS sheet

Literature and Reviews

High-Efficiency Blue Organic Light-Emitting Diode Using a 3,5-di(9H-carbazol-9-yl)tetraphenylsilane Host via Solution-Process, J. Mater. Chem., 20, 8411-8416 (2010); DOI: 10.1039/C0JM01163K.
Efficiency enhancement of solution-processed single-layer blue-phosphorescence organic light-emitting devices having co-host materials of polymer (PVK) and small-molecule (SimCP2), S-W. Liu et al., J. SID 19 (4), 346-352 (2011); DOI: 10.1889/JSID19.4.346.
Inkjet printing of blue phosphorescent light-emitting layer based on bis(3,5-di(9H-carbazol-9-yl))diphenylsilane, R. Bail et al., RSC Adv., 8, 11191 (2018); DOI: 10.1039/C8RA00582F.

Spectroscopic and electrical characteristics of highly efficient tetraphenylsilane-carbazole organic compound as host material for blue organic light emitting diodes, T. Tsuboi et at., Org. Electron., 10(7), 1372–1377 (2009); DOI:10.1016/j.orgel.2009.07.020.
Solution-processed bipolar small molecular host materials for single-layer blue phosphorescent organic light-emitting diodes, Y-T. Lee et al., J. Mater. Chem. C, 2, 382-391 (2014); DOI: 10.1039/c3tc31641f.
A New Door for Molecular-Based Organic Light-Emitting Diodes, J-H. Jou et al., Proc. of SPIE 7051, 70510 (2008); DOI:10.1117/12.794184.
Thermally Stable Charge Transport Materials for Vapor-Phase Fabrication of Perovskite Devices, C. Qiu et al., Adv. Photonics Res., 2, 2000140 (2021); DOI: 10.1002/adpr.202000140.