DPAVBi
DPAVBi, HTL material in organic electronic devices
Sky-blue fluorescent emitter in OLED devices
DPAVBi, 4,4′ -Bis[4-(di-p-tolylamino)styryl]biphenyl is widely used as a sky-blue fluorescent emitter in OLED devices. It is also used as a blue dopant for white TADF-OLED devices.
Bearing two triarylamine end units, DPAVBi is electron-rich in nature. It has applications as a hole-transporting material in organic electronic devices.
General Information
| CAS number | 119586-44-6 |
|---|---|
| Full name | 4,4′-Bis[4-(di-p-tolylamino)styryl]biphenyl |
| Chemical formula | C56H48N2 |
| Molecular weight | 748.99 g/mol |
| Absorption* | λmax 405 nm in THF |
| Fluorescence | λmax 474 nm in THF |
| HOMO/LUMO | HOMO = 5.3 eV, LUMO = 2.6 eV [1] |
| Synonyms | 4,4'-[Biphenyl-4,4'-diyldi(E)ethene-2,1-diyl]bis[N,N-bis(4-methylphenyl)aniline] |
| Classification / Family | Triarylamines, Blue fluorescent emitter and dopant materials, OLED materials, Organic electronics, Sublimed materials. |
* Measurable with an optical spectrometer, see our spectrometer application notes.
Product Details
| Purity | Sublimed* > 99% (HPLC) |
|---|---|
| Melting point | > 300 °C (0.5% weight loss) |
| Appearance | Greenish-yellow crystals/powder |
* Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials for OLED devices.
Chemical Structure
Device Structure(s)
| Device structure | ITO/HATCN (5 nm)/TAPC (40 nm)/2F-DPA*:DPAVBi (7%, 20 nm)/TPBi (40 nm)/LiF (1 nm)/Al (100 nm) [1] |
|---|---|
| Colour | Blue 
|
| Max. Power Efficiency | 7.7 lm W−1 |
| Max. Current Efficiency | 9.6 cd/A |
| Max. Luminance | 27,638 cd/m2 |
| Max. EQE | 5.2% |
| Device structure | ITO/m-MTDATA(15 nm)/a-NPD (40 nm)/PATSPA*:DPAVBi (1% wt%, 30 nm)/Alq3 (40 nm)/LiF/Al [2] |
|---|---|
| Colour | Blue
|
| Max. Current Efficiency | 7.5cd/A |
| Max. Luminance | 48,128 cd/m2 |
| Max. EQE | 6.3% |
| Device structure | PET/Graphene/GraHIL (50 nm)/NPB (20 nm)/NPB:TBADN:rubrene (1%) (10 nm)/NPB:TBADN:DPAVBi (5%) (10 nm)/TBADN:DPAVBi (5%) (15 nm)/Bebq2 (20 nm)/BaF2 (1 nm)/aluminium (130 nm) [3] |
|---|---|
| Colour | White 
|
| Max. Power Efficiency | 37.2 lm W−1 |
| Max. Current Efficiency | 30.2 cd/A |
| Device structure | ITO (95 nm)/ HATCN (10 nm)/ NPB (40 nm)/ TCTA (10 nm)/ 0.8 wt.% TBRb: 10wt.% 4CzPN: mCBP (12 nm)/ 30 wt.% Bepp2: mCBP (5 nm)/ Bepp2 (3 nm)/ 5 wt.% DPAVBi:MADN (8 nm)/ Bepp2 (50 nm)/ LiF (1 nm)/ Al (100 nm) [4] |
|---|---|
| Colour | White
|
| Max. Power Efficiency | 37.6 lm W−1 |
| Max. Current Efficiency | 38.1 cd/A |
| Max. EQE | 11.9% |
*For chemical structure information, please refer to the cited references
Pricing
| Grade | Order Code | Quantity | Price |
|---|---|---|---|
| Sublimed (>99% purity) | M2189A1 | 500 mg | £213.00 |
| Sublimed (>99% purity) | M2189A1 | 1 g | £363.00 |
MSDS Documentation
DPAVBi MSDS sheetLiterature and Reviews
- Fluorinated anthracene derivatives as deep-blue emitters and host materials for highly efficient organic light-emitting devices, L. Li et al., RSC Adv., 5, 59027 (2015); DOI: 10.1039/c5ra02357b.
- Silicon-Cored Anthracene Derivatives as Host Materials for Highly Efficient Blue Organic Light-Emitting Devices, Y. Lyu et al., Adv. Mater., 20, 2720–2729 (2008); DOI: 10.1002/adma.200602885.
- Extremely efficient flexible organic light-emitting diodes with modified graphene anode, T. Han et al., Nat. Photonics, 6, 105 (2012); DOI: 10.1038/NPHOTON.2011.318.
- Exciton-Adjustable Interlayers for High Efficiency, Low Efficiency Roll-Off, and Lifetime Improved Warm White Organic Light-Emitting Diodes (WOLEDs) Based on a Delayed Fluorescence Assistant Host, Z. Wang et al., Adv. Funct. Mater., 28, 1706922 (2018); DOI: 10.1002/adfm.201706922.
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.