CzAcSF

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

Product Details

*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

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
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
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
Max. Current Efficiency	43.1cd/A
Max. EQE	18.9 %
Max. Power Efficiency	27.1 Im/W

Pricing

MSDS Documentation

CzAcSF MSDS sheet

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.