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

1. 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.
2. 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.
3. 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.
4. 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.

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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.

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