TXO-PhCz is a TADF green emitter with a typical D-A structure consisting with electron withdrawing thioxanthoneand electron-donating phenylcarbazole units.
The D-A moieties of TXO-PhCz is angularly linked to provide effective separation of electron densities of the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) in a single molecule.
Small ΔEST of 73 meV for TXO-PhCz is observed resulting efficient reversed intersystem crossing (RISC) and then high photoluminescence quantum yield (PLQY) efficiency.
|Absorption||λmax396 nm (in toluene)|
|Fluorescene||λem522 nm(in toluene)|
|HOMO/LUMO||HOMO = 5.78 eV, LUMO = 3.58 eV |
|Full chemical name||2-phenyl-4'-carbazole-9H-thioxanthen-9-one-10,10-dioxide|
|Classification / Family||Thioxanthone Derivatives, TADF green emitter materials, Phosphorescent organic light-emitting devices (PHOLEDs),Sublimed materials|
|Purity||Sublimed >99.0% (HPLC)|
|Melting point||TGA: >350 °C(0.5% weight loss)|
*Sublimation is atechniqueused to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to theSublimed Materials for OLED devicespage.
|Device structure||ITO/ZnO (20 nm)/Cs2CO3 (5 nm)/BPhen (40 nm)/mCBP:10
wt% TXO-PhCz (30 nm)/TAPC (40 nm)/MoO3 (10 nm)/Al (90 nm) 
|Max. Current Efficiency||53.9 cd/A|
|Max. EQE||16.4 %|
|Max. Power Efficiency||35.6Im/W|
|Device structure||ITO (150 nm)/PEDOT (20 nm)/TAPC (20 nm)/mCP (10 nm)/TXO-PhCz:TPBI (5 wt%) (30 nm)/TmPyPB (65 nm)/LiF (0.9 nm)/Al (100 nm) 
|Max. Current Efficiency||71.9cd/A|
|Max. EQE||23.2 %|
|Max. Power Efficiency||45.2 Im/W|
|Device structure||ITO/ZnO (25 nm)/Cs2CO3(7 nm)/Alq3 (30 nm)/T2T (10 nm)/TXO-PhCz:mCBP (10% 30 nm)/TAPC (50 nm)/MoO3 (10 nm)/Al (100 nm) |
|Max. Current Efficiency||28.1 cd/A|
|Max. EQE||9.8 %|
|Max. Power Efficiency||16.1 Im/W|
|Sublimed(>99.0% purity)||M2265A1||100 mg||£180.00|
|Sublimed(>99.0% purity)||M2265A1||250 mg||£360.00|
|Sublimed(>99.0% purity)||M2265A1||500 mg||£600.00|
|Sublimed(>99.0% purity)||M2265A1||1 g||£1000.00|
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(30), 5198-5204 (2014); DOI: 10.1002/adma.201401393.
- n-Doping-induced efficient electron-injection for high efficiency inverted organic light-emitting diodes based on thermally activated delayed fluorescence emitter, Y. Chen et al., J. Mater. Chem. C, 5, 8400-8407 (2017); DOI: 10.1039/C7TC02406A.
- Reduction of the singlet–triplet energy gap of a thermally activated delayed fluorescence emitter by molecular interaction between the host and the emitter, L. Xie et al., J. Mater. Chem. C, 4, 10776 (2016); DOI: 10.1039/c6tc03155b.
- Highly efficient inverted organic light-emitting diodes based on thermally activated delayed fluorescence, X. Lv et al., Sci. China Mater., 59(6): 421–426 (2016); DOI: 10.1007/s40843-016-5071-y.
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.