Cz-PS
CAS Number 1396165-20-0
Dopant Materials, High Purity Sublimed Materials, Materials, Semiconducting Molecules, TADF Materials
Cz-PS, blue dopant material
Available in sublimed grade for highly efficient TADF-OLED devices, 9,9'-(4,4'-Sulfonylbis(4,1-phenylene))bis(3,6-di-tert -butyl-9H-carbazole), DTC-DPS, BuCz-DPS, t-Cz-DPS), CAS 1396165-20-0
Cz-PS 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 T1 states (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, BuCz-DPS, t-Cz-DPS) |
| 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](https://www.ossila.com/cdn/shop/files/cz-ps-chemical-structure-body.png)
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 |
| Max. EQE | 9.9% |
MSDS Documentation
Cz-PS MSDS sheetPricing
| 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
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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.
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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.
- 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.