MADN, 2-methyl-9,10-bis(naphthalen-2-yl)anthracene is commonly known as a blue emitter. It is widely used as a highly-efficient blue host material and hole-transporting material (HTM) for organic electronic devices. Exhibiting an ambipolar transporting ability, MADN offers stable thin-film morphology and a wide energy band-gap.
As a hole-transporting material, MADN can reduce the amount of hole carriers injected into the device - leading to a well-balanced carrier recombination [2].
General Information
| CAS number | 804560-00-7 |
| Chemical formula | C35H24 |
| Molecular weight | 444.57 g/mol |
| Absorption | λmax 379 nm, 399 nm in DCM |
| Fluorescence | λem 439 nm in DCM |
| HOMO/LUMO | HOMO = -5.5 eV, LUMO = -2.5 eV [1] |
| Synonyms | 2-Methyl-9,10-bis(naphthalen-2-yl)anthracene, 2-Methyl-9,10-di(2-naphthyl)anthracene |
| Classification / Family | Hole-transport layer (HTL) materials, Solution-processed OLED maetrials, Blue emitter, PHOLEDs, OPV, Sublimed materials |
Product Details
| Purity | >99.0% (sublimed) |
| Melting Point | 253 - 258 °C (lit.); TGA: Td ≥ 310 oC (5% weight loss) |
| Colour | White powder/crystals |
*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.
Chemical Structure
Device Structure(s)
| Device structure | ITO/CFx/MADN (60 nm)/Alq3:1%C545T (37.5 nm)/Alq3 (37.5 nm)/LiF (1 nm)/Al (150 nm) [2] |
| Colour | Green  |
| Luminance@6.6V | 4366 cd/m2 |
| Current Efficiency@20mA/cm2 | 21.8 cd/A |
| Power Efficiency@20mA/cm2 | 10.4 lm W−1 |
| EQE@20mA/cm2 | 5.8% |
| Device structure | ITO/CFx/c-HTL (40nm)/NPB (10nm)/MADN:5%BD1 (40nm)/Alq3 (10nm)/Al-LiF [3] |
| Colour | Deep Blue  |
| Luminance@6.8V | 1080 cd/m2 |
| Current Efficiency@20mA/cm2 | 5.4 cd/A |
| Power Efficiency@20mA/cm2 | 2.5 lm W−1 |
| EQE@20mA/cm2 | 5.1% |
| Device structure | ITO/NPD (40 nm)/MADN:1wt% C545T (20 nm)/B3PyPB (40 nm)/LiF/Al [4] |
| Colour | Green |
| Max. EQE | 6.0% |
| Device structure | ITO/TAPC (35 nm)/MADN + 6 wt%DPAVBi (20 nm)/B3PyPB (40 nm)/LiF (1 nm)/Al (80 nm) [4] |
| Colour | Blue  |
| EQE@100 cd/m2 | 8.2% |
*For chemical structure information, please refer to the cited references
Pricing
| Grade | Order Code | Quantity | Price |
| Sublimed (>99.0%) | M2092A1 | 1 g | £219.00 |
| Sublimed (>99.0%) | M2092A1 | 5 g | £896.00 |
MSDS Documentation
MADN MSDS sheet
Literature and Reviews
- Highly efficient and stable sky blue organic light-emitting devices, M-F. Lin et al., Appl. Phys. Lett. 89, 121913 (2006); doi: 10.1063/1.2356903.
- Study of efficient and stable organic light-emitting diodes with 2-methyl-9,10-di(2-naphthyl)anthracene as hole-transport material by admittance spectroscopy, M-H. Ho et al., Appl. Phys. Lett. 94, 023306 (2009); doi: 10.1063/1.3072616.
- Highly Efficient, Deep-Blue Doped Organic Light-Emitting Devices, M-T. Lee et al., Adv. Mater.,17, 2493–2497 (2005); DOI: 10.1002/adma.200501169.
- Optimizing the Charge Balance of Fluorescent OrganicLight-Emitting Devices to Achieve High External QuantumEffi ciency Beyond the Conventional Upper Limit, Y-J. Pu et al., Adv. Mater., 24, 1765–1770 (2012); DOI: 10.1002/adma.201104403.
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.
