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Product Code M2271A1-100mg
Price £260 ex. VAT

CzAcSF, blue TADF dopant for highly efficient TADF-OLED devices

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

CzAcSF (CAS number 1792173-34-2) is an unsymmetrical acridine derivative with one carbazole and one 9,9-dimethyl- 9,10-dihydroacridine attached to a diphenyl sulfonyl centre. CzAcSF is normally used as blue TADF dopant for highly efficient TADF-OLED devices. A quantum efficiency of 18.1% [1] has been achieved at a doping concentration of 0.1% TBPe in active emitting layer of DPEPO:CzAcSF.

CzAcSF can also be used as a bipolar host material to harvest singlet excitons of TBPe dopant material by a Forster energy transfer process. BFOXD-based devices exhibit better performances, with a maximum external quantum efficiency (EQE) of 20.1% while using CzAcSF as the host [2].

We stock high purity (>99%) CzAcSF and a range of other TADF materials and semiconducting molecules for priority dispatch (lead times may apply for large quantities). Qualifying orders ship free.

General Information

CAS Number 1792173-34-2
Chemical Formula C39H30N2O2S
Molecular Weight 590.73 g/mol
Absorption λmax 233 nm
Fluorescence λem 443 nm in DCM
HOMO/LUMO HOMO = 5.89 eV, LUMO = 3.00 eV; ET = 3.04 eV [3]
Full Chemical Name 10-(4-(4-(9H-Carbazol-9-yl)phenylsulfonyl)phenyl)-9,9-dimethyl- 9,10-dihydroacridine
Synonyms 10-(4-(4-(9H-Carbazol-9-yl)phenylsulfonyl)phenyl)-9,10-dihydro-9,9-dimethylacridine
Classification / Family Acridine derivatives, phosphorescent blue dopant materials, TADF host materials, sublimed materials

Product Details

Purity Sublimed >99.0% (HPLC)
Melting Point Tg = 117 °C
Appearance Off 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

Chemical structure of CzAcSF, phosphorescent blue dopant
Chemical Structure of CzAcSF, CAS 1792173-34-2

Device Structure(s)

Device Structure ITO (120 nm)/PEDOT:PSS (60 nm)/mCP (30 nm)/CzAcSF:0.3 w% TBPe (25 nm)/TSPO1 (5 nm)/TPBI (30 nm)/LiF (1 nm)/Al (200 nm) [4]
Colour blue light emitting device  Blue
Max. EQE 15.4 %
Device Structure ITO/PEDOT:PSS (40 nm)/CzAcSF:N2-8 (90∶10, 50 nm)/DPEPO (10 nm)/TmPyPB (50 nm)/Liq (1 nm)/Al (100 nm) [5]
Colour blue light emitting device  Blue
Max. Current Efficiency 34.4 cd/A
Max. EQE 17.6 %
Max. Power Efficiency 27.0 Im/W
Device Structure ITO/PEDOT:PSS (40 nm)/CzAcSF:N3-8 (90∶10, 50 nm)/DPEPO (10 nm)/TmPyPB (50 nm)/Liq (1 nm)/Al (100 nm) [5]
Colour blue light emitting device  Blue
Max. Current Efficiency 43.1cd/A
Max. EQE 18.9 %
Max. Power Efficiency 27.1 Im/W


Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2271A1 100 mg £260
Sublimed (>99.0% purity) M2271A1 250 mg £520
Sublimed (>99.0% purity) M2271A1 500 mg £850
Sublimed (>99.0% purity) M2271A1 1 g £1400

MSDS Documentation


Literature and Reviews

  1. High efficiency blue fluorescent organic light-emitting diodes using a conventional blue fluorescent emitter, I. Lee et al., J. . Mater. Chem. C, 3, 8834-8838 (2015); DOI: 10.1039/C5TC01626F.
  2. Solution-Processed Highly Efficient Bluish-Green Thermally Activated Delayed Fluorescence Emitter Bearing an Asymmetric Oxadiazole–Difluoroboron Double Acceptor, D. Zhou et al., ACS Appl. Mater. Interfaces, 11, 27, 24339–24348 (2019); DOI: 10.1021/acsami.9b07511.
  3. Host Engineering for High Quantum Efficiency Blue and White Fluorescent Organic Light-Emitting Diodes, W. Song et al., Adv. Mater., 27, 4358–4363 (2015); DOI: 10.1002/adma. 201501019.
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