CAS Number 1141757-83-6
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Tris-PCz, HTL material in TADF-OLED devices
High-purity (>99.0%) and available online for priority dispatch
Tris-PCz has a tri-carbazole back-boned structure joined at the 3 and 6 positions. The highly-conjugated carbazoles makes Tris-PCz electron-rich, which is widely used as a hole-transport layer material in TADF-OLED devices.
Due to its electron-rich nature, Tris-PCz can form exciplexes with electron-deficient materials (such as B4PyPPM) in highly-efficient OLED devices with TADF characteristics.
Tris-PCz has a high triplet energy (ET = 2.7 eV), so it is also frequently used as an exciton block layer material to effectively prevent the excitons' energy from being transferred (to the donor or acceptor) to achieve high fluorescence quantum efficiency.
|Molecular weight||725.28 g/mol|
|Absorption||λmax 305 nm in DCM|
|Fluorescence||λmax 415 nm in DCM|
|HOMO/LUMO||HOMO = 5.6 eV, LUMO = 2.1 eV; T1 = 2.7 eV |
|Classification / Family||Carbazole derivative, Fluorescent host materials, Phosphorescent host materials, Hole-transport layer materials, Exciton-blocking layer materials, TADF-OLED materials, Organic electronics, Sublimed materials.|
|Purity||Sublimed > 99% (HPLC)|
|Melting point||TGA: >270 °C (0.5% weight loss)|
|Device structure||ITO/HATCN (10 nm)/Tris-PCz (35 nm)/10 wt.% 4CzPN:mCBP (G-EML) (3 nm)/6 wt.% 4CzPN:2 wt.% 4CzTPN-Ph:mCBP (R-EML) (2 nm)/10 wt.% 3CzTRZ:PPT (B-EML) (10 nm)/PPT (50 nm)/LiF (0.8 nm)/Al (100 nm) |
|Max. Power Efficiency||30.3 lm W−1|
|Max. Current Efficiency||38.6 cd/A|
|Device structure||ITO/HATCN (10 nm)/Tris-PCz (35 nm)/10 wt.% 4CzPN:mCBP (G-EML) (5 nm)/6 wt.% 4CzPN:2 wt.% 4CzTPN-Ph:mCBP (R-EML) (4 nm)/10 wt.% 3CzTRZ:PPT (B-EML) (6 nm)/PPT (50 nm)/LiF (0.8 nm)/Al (100 nm) |
|Max. Power Efficiency||34.1 lm W−1|
|Max. Current Efficiency||45.6 cd/A|
|Device structure||ITO/MoO3 (1 nm)/TAPC (20 nm)/Tris-PCz (10 nm)/Tris-PCz:B4PyPPM:3 wt% Ir(MDQ)2acac (30 nm)/B4PyPPM (50 nm)/LiF (1 nm)/Al (100 nm) |
|Max. Power Efficiency||37.3 lm W−1|
|Max. Current Efficiency||33.7 cd/A|
|Device structure||ITO (100 nm)/HATCN (10 nm)/Tris-PCz (30 nm)/mCBP (5 nm)/20 wt% of 3Ph2CzCzBN:mCBP (30 nm)/SF3-TRZ (10 nm)/ 30 wt% of Liq:SF3-TRZ (50 nm)/Liq (2 nm)/ Al (100 nm) |
|Max. Power Efficiency||34.5 lm W−1|
|Max. Current Efficiency||41.7 cd/A|
|Device structure||ITO/TAPC (35 nm)/Tris-PCz (10 nm)/Tris-PCz:PIM-TRZ*(1:2) (30 nm)/PIM-TRZ (60 nm)/LiF (1 nm)/Al (100 nm) |
|Max. Power Efficiency||71.0 lm W−1|
|Max. Current Efficiency||52.0 cd/A|
|Device structure||ITO/4% ReO3:Tris-PCz (60 nm)/Tris-PCz (15 nm)/Tris-PCz:CN-T2T(1:1) (25 nm)/CN-T2T (50 nm)/Liq (0.5 nm)/Al (100 nm) |
|Max. Power Efficiency||46.5 lm W−1|
|Max. Current Efficiency||37.0 cd/A|
|Max. Luminance||73, 800 cd/m2|
*For chemical structure information, please refer to the cited references
|Sublimed (>99% purity)||M2191A1||100 mg||£190|
|Sublimed (>99% purity)||M2191A1||250 mg||£380|
|Sublimed (>99% purity)||M2191A1||500 mg||£660|
|Sublimed (>99% purity)||M2191A1||1 g||£1100|
Literature and Reviews
- Promising operational stability of high-efficiency organic light-emitting diodes based on thermally activated delayed fluorescence, H. Nakanotani1 et al., Sci. Rep., 3, 2127 (2013); DOI: 10.1038/srep02127.
- High-efficiency white organic light-emitting diodes using thermally activated delayed fluorescence, J. Nishide et al., Appl. Phys. Lett. 104, 233304 (2014); doi: 10.1063/1.4882456.
- High-performance red organic light-emitting devices based on an exciplex system with thermally activated delayed fluorescence characteristic, S. Yuan et al., Org. Electronics, 39, 10-15 (2016); doi: 10.1016/j.orgel.2016.09.020.
- Efficient and stable sky-blue delayed fluorescence organic light-emitting diodes with CIEy below 0.4, C. Chan et al., Nat. Commun., 9, 5036 (2018); DOI: 10.1038/s41467-018-07482-6.
- Exciplex-Based Electroluminescence: Over 21% External Quantum Efficiency and Approaching 100 lm/W Power Efficiency, B. Liang et al., J. Phys. Chem. Lett., 10, 2811−2816 (2019); DOI: 10.1021/acs.jpclett.9b01140.
- Balance the Carrier Mobility To Achieve High Performance Exciplex OLED Using a Triazine-Based Acceptor, W. Hung et al., ACS Appl. Mater. Interfaces, 8, 4811−4818 (2016); DOI: 10.1021/acsami.5b11895.
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