DPPyA

CAS Number 1257879-34-7

Charge Transport Layer Materials, High Purity Sublimed Materials, Materials, OLED Materials, Semiconducting Molecules, TADF Materials

MSDS

Low price, high purity DPPyA

Electron transport layer material with high electron mobility, 9,10-bis(6-phenylpyridin-3-yl)anthracene, DPyPA, CAS No. 1257879-34-7, Sublimed ≥99.0%

DPPyA consists of an anthracene core joined by two electron withdrawing phenylpyridine units. With two adjacent pyridine units, it is electron deficient. As a result, DPPyA is normally used as an electron transport layer material, either on itself or together with Liq as dual electron transport layer materials in organic light-emitting diodes.

The pyridine units of DPPyA not only facilitate charge injection, but also enhance the electron-transporting mobility, benefitting from the closely packed molecules induced by the intermolecular H---N hydrogen bonding. DPPyA achieved high electron mobility of 1.5 × 10^{− 3} cm²/Vs under the electric field of 5.5 × 10⁵ V/cm due to the existence of good molecular stacking.

Owing to its high electron mobility, lower operation voltages and high current densities can be observed in devices with DPPyA as electron transport layer material.

General Information

CAS number	1257879-34-7
Chemical formula	C₃₆H₂₄N₂
Molecular weight	484.59 g/mol
Absorption	λ_max 379, 401 nm
Fluorescence	λ_em 439 nm
HOMO/LUMO	HOMO = 5.9 eV, LUMO = 3.0 eV [1]
Full name	9,10-bis(6-phenylpyridin-3-yl)anthracene
Synonyms	DPyPA, DPPyA
Classification / Family	Anthracene derivatives, electron transport layer materials, sublimed materials, TADF materials, OLEDs, organic electronics

Product Details

Purity	Sublimed* >99.0%
Melting point	T_g = 135 °C,
Colour	White Powder

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)/HATCN (5 nm)/NPB (30 nm)/BCzPh (10 nm)/α,β-ADN:x wt% pSFIAc2 (30 nm)/CzPhPy (20 nm)/DPPyA (20 nm)/LiF (0.5 nm)/Al (150 nm) [2]
Colour	Blue
Max. EQE	9.1%
Max. Power Efficiency	5.2 lm W⁻¹

Device structure	(ITO)/HATCN (4.2 nm)/NPB (30 nm)/TCTA (10 nm)/mCP (10 nm)/mCBP:20 wt% TCTPCF3:1 wt% TCz-BN1 (30 nm)/CzPhPy (10 nm)/DPPyA (30 nm)/LiF (1 nm)/Al (100 nm) [3]
Colour	Green
Max. EQE	11.5%
Max. Current Efficiency	31.1 cd/A
Max. Power Efficiency	22.2 lm W⁻¹

Device structure	(ITO)/HATCN (4.2 nm)/NPB (30 nm)/TCTA (10 nm)/mCP (10 nm)/mCBP:20 wt% DACT-II:5 wt% TCz-BN2 (30 nm)/CzPhPy (10 nm)/DPPyA (30 nm)/LiF (1 nm)/Al (100 nm) [3]
Colour	Yellow
Max. EQE	25.1%
Max. Current Efficiency	81.1 cd/A
Max. Power Efficiency	79.7 lm W⁻¹

Pricing

MSDS Documentation

DPPyA MSDS sheet

Literature and Reviews

Ultrahigh-Efficiency Green PHOLEDs with a Voltage under 3 V and a Power Efficiency of Nearly 110 lm W−1 at Luminance of 10 000 cd m−2, D. Zhang et al., Adv. Mater., 29 (40); 1702847 (2017); 10.1002/adma.201702847.
Highly efficient and stable deep-blue OLEDs based on narrowband emitters featuring an orthogonal spiro-configured indolo[3,2,1-de]acridine structure, Chem. Sci., 2022; DOI: 10.1039/D2SC01543A.
Multi-resonant thermally activated delayed fluorescence emitters based on tetracoordinate boron-containing PAHs: colour tuning based on the nature of chelates, G. Meng et al., Chem. Sci., 13, 1665 (2022); DOI: 10.1039/d1sc05692a.

In situ-formed tetrahedrally coordinated double-helical metal complexes for improved coordination-activated n-doping, Z. Liu et al., Nat. Commun., 13, 1215 (2022); DOI: 10.1038/s41467-022-28921-5.
Efficient Low-Driving-Voltage Blue Phosphorescent Homojunction Organic Light-Emitting Devices, C. Cai et al., Jpn. J. Appl. Phys. 50, 040204 (2011); DOI:10.1143/jjap.50.040204.

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