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Product Code M2291A1-100mg
Price £220 ex. VAT

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 (ET = 3.0 eV), high carrier mobility, ambipolar transport property and high glass transition temperature (Tg = 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* λmax 338 nm (dichloromethane)
Photoluminescence λem 362 nm (dichloromethane)
HOMO/LUMO HOMO = 6.1 eV, LUMO = 2.5 eV; ET = 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 Tg = 148 °C (lit.)
Appearance White powder/crystals

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

Chemical Structure

SimCP2 chemical structure
Chemical structure of bis[3,5-di(9H -carbazol-9-yl)phenyl]diphenylsilane (SimCP2)

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 light emitting device 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 light emitting device Blue
Max. EQE 17.7%
Max. Power Efficiency 24.2 Im/W


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 MSDSSimCP2 MSDS sheet

Literature and Reviews

  1. 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.
  2. 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.
  3. 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.
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