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All Semiconducting Molecules, Sublimed Materials, TADF Materials

Product Code M2271A1-100mg
Price $325 ex. VAT

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

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

CzAcSF 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 for OLED devices page.

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 blue light emitting device
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 blue light emitting device
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 blue light emitting device
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.
  4. Emergence of White Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence, P. Xiao et al., Appl. Sci., 8, 299 (2018); DOI: 10.3390/app8020299.
  5. π-Stacked Thermally Activated Delayed Fluorescence Emitters with Alkyl Chain Modulation, T. Wang et al., CCS Chem., 2, 1757–1763 (2020); DOI: 10.31635/ccschem.020.202000355.

To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, military, pharmaceuticals, cosmetics, food, or commercial applications.

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