TXO-TPA has an ambipolar D-A type structure with TXO as the electron-accepting and triphenylamine (TPA) as the electron-donating unit. The twice-oxidised thiophene on TXO moiety can greatly enhance the electron-accepting ability as the channel for higher electron mobility. On the other hand, electron-rich TPA is used as the channel for higher hole mobility.
TXO-TPA is commonly used as a red dopant material in TADF-OLED devices. This is due to its high device performance capabilities with high external quantum efficiency (EQE).
|Molecular weight||487.57 g/mol|
|Absorption||λmax 310, 375 nm in film|
|Fluorescene||λem 625 nm in film|
|HOMO/LUMO||HOMO 5.37 eV, LUMO 3.49 eV |
|Classification / Family||Thioxanthone derivatives, Organic electronics, TADF-OLEDs, TADF red dopant materials, Sublimed materials.|
|Purity||Sublimed >99.0% (HPLC)|
|Melting point||TGA: >250 °C (0.5% weight loss)|
*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.
|Device structure||ITO/PEDOT (30 nm)/TAPC (20 nm)/5 wt%TXO-TPA:mCP (35 nm) /TmPyPB (55 nm)/LiF(0.9 nm)/Al |
|Current Efficiency@100 cd/m2||43.3 cd/A|
|EQE@100 cd/m2||18.5 %|
|Power Efficiency@100 cd/m2||47.4 lm W-1|
|Device structure||ITO/PEDOT (20 nm)/TAPC (30 nm)/TXO-TPA (0.5 nm)/4P-NPB* (0.5 nm)/mCP (10 nm)/TmPyPB (50 nm)/LiF (0.9 nm)/Al (100 nm) |
|Max. Current Efficiency||10.5 cd/A|
|Max. Power Efficiency||8.9 lm W-1|
*For chemical structure information, please refer to the cited references
|Sublimed (>99% purity)||M2128A1||100 mg||£197.00|
|Sublimed (>99% purity)||M2128A1||250 mg||£394.00|
|Sublimed (>99% purity)||M2128A1||500 mg||£669.00|
|Sublimed (>99% purity)||M2128A1||1 g||£1070.00|
Literature and Reviews
- Novel Thermally Activated Delayed Fluorescence Materials–Thioxanthone Derivatives and Their Applications for Highly Efficient OLEDs, H. Wang et al., Adv. Mater., 26, 5198–5204 (2014); DOI: 10.1002/adma.201401393.
- White organic light emitting diodes based on a yellow thermally activated delayed fluorescent emitter and blue fluorescent emitter, L. Meng et al., RSC Adv., 5, 59137-59141 (2015); DOI: 10.1039/C5RA09168C.
- Purely Organic Thermally Activated Delayed Fluorescence Materials for Organic Light‐Emitting Diodes, M. Wong et al., Adv.Mater., 29, 1605444 (2017); DOI: 10.1002/adma.201605444.
- Impact of Dielectric Constant on the Singlet−Triplet Gap in Thermally Activated Delayed Fluorescence Materials, H. Sun et al., J. Phys. Chem. Lett., 8, 2393−2398 (2017); DOI: 10.1021/acs.jpclett.7b00688.
To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.