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Product Code M2386A1-250mg
Price £360 ex. VAT

Cz-PS, blue dopant material

Available in sublimed grade for highly efficient TADF-OLED devices

Cz-PS, 9,9'-(4,4'-Sulfonylbis(4,1-phenylene))bis(3,6-di-tert -butyl-9H-carbazole), has an electron deficient diphenylsulfonyl core with two electron donating di-tert-butyl substituted carbazolyl peripheral end groups. The bulky tert-butyl substituents can not only stabilize the molecule by blocking the electron rich 3,6-position to prevent the formation of dimers but also, they can effectively prevent the formation of the excimers.

Bis[4-(3,6-di-tert-butylcarbazole)phenyl]sulfone demonstrated deep-blue emission and the OLED with the dopant achieved a high EQE of 9.9% by using DPEPO as the host. Meanwhile, the OLED device suffered from a sharp efficiency roll-off at high current density, primarily caused by the relatively large energy gap between the S1 and Tstates (ΔEST = 0.32 eV).

General Information

CAS Number 1396165-20-0
Chemical Formula C53H56N2O2S
Molecular Weight 773.08 g/mol
Absorption λmax 346 nm in toluene [1]
Fluorescence λmax 404 nm in toluene [1]
HOMO/LUMO HOMO = 5.81 eV, LUMO = 2.52 eV [1]
Full Name 9,9'-(4,4'-Sulfonylbis(4,1-phenylene))bis(3,6-di-tert -butyl-9H-carbazole)
Synonyms DTC-DPS, Bis[4-(3,6-Di-tert-butylcarbazole)phenyl]sulfone
Classification / Family Carbazole derivatives, Diphenylsulfones, TADF materials, Blue dopant, TADF Host, Sublimed materials

Chemical Structure

Cz-PS, Bis[4-(3,6-Di-tert-butylcarbazole)phenyl]sulfone chemical structure, 1396165-20-0
Chemical Structure of 9,9'-(4,4'-Sulfonylbis(4,1-phenylene))bis(3,6-di-tert -butyl-9H-carbazole) (Cz-PS), CAS 1396165-20-0

Product Details

Purity Sublimed* >99.0% (HPLC)
Melting Point N/A
Appearance White to pale yellow powder/crystals

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

Device Structure

Device Structure ITO/NPD (30 nm)/TCTA (20 nm)/CzSi (10 nm)/Cz-PS:DPEPO (20 nm)/DPEPO (10 nm)/TPBi (30 nm)/LiF (0.5 nm)/Al [1]
Colour blue light emitting device  Blue
Max. EQE 9.9%

MSDS Documentation



Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2386A1 250 mg £360
Sublimed (>99.0% purity) M2386A1 500 mg £620
Sublimed (>99.0% purity) M2386A1 1 g £1050

Literature and Reviews

  1. Design of Efficient Thermally Activated Delayed Fluorescence Materials for Pure Blue Organic Light Emitting Diodes, Q. Zhang et al., J. Am. Chem. Soc., 134, 36, 14706–14709 (2012); DOI: 10.1021/ja306538w.
  2. Deep-blue thermally activated delayed fluorescence dendrimers with reduced singlet-triplet energy gap for low roll-off non-doped solution-processed organic light-emitting diodes, J. Li et al., Dye. Pigm., 140, 79-86 (2017); DOI: 10.1016/j.dyepig.2017.01.036.
  3. High-efficiency deep-blue organic light-emitting diodes based on a thermally activated delayed fluorescence emitter, S. Wu et al., J. Mater. Chem. C, 2, 421-424 (2014); DOI: 10.1039/C3TC31936A.
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