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DTAF, HTL and EBL material for OLED devices
Paired with PO-T2T to generate yellow emission
DTAF, or 9,9-di[4-(di-p-tolyl)aminophenyl]fluorine, has a fluorine centred structure with two N,N-bis(p-tolyl))benzenamine attached to the fluorine. DTAF is electron rich, so is normally used as a hole transporting layer or electron blocking layer (with a LUMO of 1.84 eV) in OLED devices.
DTAF can also form exciplexes with other electron deficient materials, such as PO-T2T, generating yellow exciplex emission. Parallel all exciplex based white-light OLED (WOLED) blend layers of mCP/PO-T2T and DTAF/PO-T2T demonstrates excellent maximum current and power efficiencies (27.7 cd/A and 15.8 ml/W respectively) with CIE(0.29, 0.35) and CRI 70.6 .
The First Tandem, All-exciplex-based WOLED, W. Huang et al., Sci. Report, 4, 5161 (2014); DOI: 10.1038/srep05161.
A carbazole–phenylbenzimidazole hybrid bipolar universal host for high efficiency RGB and white PhOLEDs with high chromatic stability, W. Hung et al., J. Mater. Chem., 21, 19249 (2011); DOI: 10.1039/c1jm14029a.
A new benzimidazole/carbazole hybrid bipolar material for highly efficient deep-blue electrofluorescence, yellow–green electrophosphorescence, and two-color-based white OLEDs, W. Hung et al., J. Mater. Chem., 20, 10113–10119 (2010); DOI: 10.1039/c0jm02143a.
Exciplex: An Intermolecular Charge-Transfer Approach for TADF, M. Sarma et al., ACS Appl. Mater. Interfaces, 10 (23), 19279–19304 (2018); DOI: 10.1021/acsami.7b18318..
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. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.