DMAC-BP

CAS Number 1685287-55-1

Dopant Materials, High Purity Sublimed Materials, Semiconducting Molecules, TADF Materials

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DMAC-BP, green TADF emitter

High-purity (>99.0%) and available online for priority dispatch

DMAC-BP, bis[4-(9,9-dimethyl-9,10-dihydroacridine)phenyl]methanone is better known as a green Thermally Activated Delayed Fluorescence (TADF) emitter.

Due to the short conjugation length of the DMAC and BP group, a higher energy of the lowest locally-excited triplet state (³LE) is achieved. This energy is almost equal to that of the triplet charge-transfer state (³CT). The difference of the lowest singlet and triplet excited states ΔE_ST is 0.07 eV [2].

Compared to mCP-doped films, neat films of DMAC–BP have a slightly red-shifted emission band with a maximum of 506 nm, a slightly lower photoluminescence quantum yield (PLQY) of 0.85, and TADF lifetime of 2.7 μs.

General Information

CAS number	1685287-55-1
Chemical formula	C₄₃H₃₆N₂O
Molecular weight	596.76 g/mol
Absorption	n/a
Fluorescence	λ_em 506 nm (in film)
HOMO/LUMO	HOMO = -5.8 eV, LUMO = -3.1 [1]
Synonyms	Bis[4-(9,9-dimethyl-9,10-dihydroacridine)phenyl]methanone
Classification / Family	Electron transport layer (ETL) materials, Solution-processed OLED materials, TADF green emitter materials, PHOLEDs, Sublimed materials

Product Details

Purity	>99.0% (sublimed)
Melting Point	TGA T_d= 410 ^oC (5% weight loss)
Appearance	Light yellow powder/crystals

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.

Chemical Structure

Device Structure(s)

Device structure	ITO/HATCN (5 nm)/NPB (40 nm)/TCTA (10 nm)/DMAC-BP:DMIC-TRZ (30 nm)/B3PyMPM (40 nm)/LiF (1 nm)/Al (150 nm) [1]
Colour	Green
Max. Power Efficiency	52.9 lm W⁻¹
Max. EQE	21%

Device structure	ITO/HATCN (5 nm)/NPB (40 nm)/TCTA (10 nm)/DMAC-BP:26DCzPPy (30 nm)/B3PyMPM (40 nm)/LiF (1 nm)/Al (150 nm) [1]
Colour	Green
>Max. Power Efficiency	38.4 lm W⁻¹
Max. EQE	19%

Device structure	ITO/MoO₃ (1 nm)/DMAC-BP (60 nm)/TPBi (60 nm)/LiF (1 nm)/Al [2]
Colour	Green
Max. Luminance	51,100 cd/m²
Power Efficiency@100 cd/m²	25 lm W⁻¹
Max. EQE	10.6%

Device structure	ITO/MoO₃ (1 nm)/mCP (40 nm)/DMAC-BP (30 nm)/TPBi (50 nm)/LiF (1 nm)/Al [2]
Colour	Green
Max. Luminance	45,300 cd/m²
Power Efficiency@100 cd/m²	59 lm W⁻¹
Max. EQE	18.9%

Pricing

Grade	Order Code	Quantity	Price
Sublimed (>99.0% purity)	M2090A1	100 mg	£300
Sublimed (>99.0% purity)	M2090A1	250 mg	£600
Sublimed (>99.0% purity)	M2090A1	500 mg	£1050

MSDS Documentation

DMAC-BP MSDS sheet

Literature and Reviews

Highly Efficient Full-Color Thermally Activated Delayed Fluorescent Organic Light-Emitting Diodes: Extremely Low Efficiency Roll-Off Utilizing a Host with Small Singlet–Triplet Splitting, D. Zhang et al., ACS Appl. Mater. Interfaces, 9 (5), 4769–4777 (2017); DOI: 10.1021/acsami.6b15272.
Nearly 100% Internal Quantum Effi ciency in Undoped Electroluminescent Devices Employing Pure Organic Emitters, Q, Zhang et al., Adv. Mater., 27, 2096–2100 (2015); DOI: 10.1002/adma.201405474.
Undoped highly efficient green and white TADF-OLEDs developed by DMAC-BP: manufacturing available via interface engineering, X. Jiang et al., J Mater Sci: Mater Electron (2020). DOI: 0.1007/s10854-020-04450-z.
Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep-Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light-Emitting Diodes Application, X. Cai et al., Adv. Funct. Mater.,26, 8042–8052 (2016); DOI: 10.1002/adfm.201603520.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.