mCPCN

CAS Number 1392506-99-8

TADF Host Materials, Host Materials, TADF Materials, High Purity Sublimed Materials, Semiconducting Molecules, OLED Materials, Materials

MSDS

mCPCN, asymmetric bipolar phosphorescent host material

Used to host blue, green, red and white light emitting TADF-OLED devices. 9-(3-(9H-Carbazol-9-yl)phenyl)-9H-carbazole-3-carbonitrile, CAS No. 1392506-99-8, Sublimed ≥99.0%

mCPCN is an asymmetric bipolar and high-triplet-energy (E_T= 3.03 eV) phosphorescent host material which could be used for hosting blue, green, red and white light emitting TADF-OLED devices.

The incorporation of the simple and small CN group can greatly improve film morphology and device thermal stabilities. Compared to mCP, CN group attached to the 3-position of the carbazole unit in mCPCN is believed to increases the electron affinity to achieve a rather balanced hole–electron injection and transport properties while not altering electronic transition energies and maintaining a high triplet energy.

mCPCN from Ossila was used in the high-impact paper (IF 29.4), Single-Layer Organic Light-Emitting Diode with Trap-Free Host Beats Power Efficiency and Lifetime of Multilayer Devices,O. Sachnik et al., Adv. Mater., 36 (16), 2311892 (2024); DOI: 10.1002/adma.202311892 and high-impact paper (IF 38.5), Pure-blue single-layer organic light-emitting diodes based on trap-free hyperfluorescence , O. Sachnik et al., Nat. Mater., 24, 1742–1748 (2025); DOI: 10.1038/s41563-025-02294-8.

General Information

CAS number	1392506-99-8
Chemical formula	C₃₁H₁₉N₃
Molecular weight	433.5 g/mol
Absorption	λ_max 326, 339 nm (in DCM)
Fluorescence	λ_em 348, 365 nm (in DCM)
HOMO/LUMO	HOMO = 5.80 eV, LUMO = 2.24 eV; E_T= 3.03 eV [1]
Full name	9-(3-(9H-Carbazol-9-yl)phenyl)-9H-carbazole-3-carbonitrile
Synonyms	mCP-CN
Classification / Family	Carbazole derivatives, Hole transporting materials, Phosphorescent host materials, OLEDs, TADF materials, Organic electronics

Product Details

Purity	Sublimed* >99.0%
Melting point	T_m= 222 °C (lit.), T_d = 313 °C (5% weight loss), T_g = 97 °C
Color	White Powder

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

Chemical Structure

mcpcn, 1392506-99-8 — Chemical structure of 9-(3-(9H-Carbazol-9-yl)phenyl)-9H-carbazole-3-carbonitrile (mCPCN), CAS 1392506-99-8

Device Structure(s)

Device structure	ITO/TAPC (40 nm)/mCP (10 nm)/mCPCN doped with 8 wt% of FIrpic (20 nm)/DPPS (5 nm)/3TPYMB (45 nm)/LiF (0.5 nm)/Al (150 nm) [1]
Color	Blue
Max. Current Efficiency	58.7 cd/A
Max. EQE	26.4%
Max. Power Efficiency	57.6 lm W⁻¹

Device structure	ITO/PEDOT:PSS (70 nm)/TAPC (15 nm)/mCP (5 nm)/mCPCN:DMAC‐TRZ 8 wt.% (20 nm)/DPPS (5 nm)/3TPYMB (45 nm)/LiF (0.5 nm)/Al (150 nm) [2]
Color	Green
Max. Current Efficiency	66.8 cd/A
Max. EQE	26.5%
Max. Power Efficiency	65.6 lm W⁻¹

Device structure	ITO/MoO3 (1 nm)/TAPC (40 nm)/mCP (10 nm)/mCPCN doped with 8 wt % of FIrpic (20 nm)/3TPYMB (50 nm)/LiF (1 nm)/Al (150 nm) [3]
Color	Blue
Max. Current Efficiency	73.4 cd/A
Max. EQE	30.6%
Max. Power Efficiency	67.8 lm W⁻¹

Device structure	ITO/MoO3 (1 nm)/TAPC (40 nm)/mCP (10 nm)/mCPCN doped with 8 wt % of MS2 (20 nm)/3TPYMB (50 nm)/LiF (1 nm)/Al (150 nm) [3]
Color	Blue
Max. Current Efficiency	79.4 cd/A
Max. EQE	30.1%
Max. Power Efficiency	69.3 lm W⁻¹

Device structure	ITO/MoO3 (1 nm)/TAPC/mCP (10 nm)/mCPCN doped with Ir(III) dopants 1m (12 wt.%; 20 nm)/3TPYMB/LiF (0.5 nm)/Al (100 nm) [4]
Color	Blue
Max. Current Efficiency	69.5 cd/A
Max. EQE	27%
Max. Power Efficiency	68.2 lm W⁻¹

Device structure	ITO/MoO3 (1 nm)/TAPC/mCP (10 nm)/mCPCN doped with Ir(III) dopants 2m (12 wt.%; 20 nm)/3TPYMB/LiF (0.5 nm)/Al (100 nm) [4]
Color	Bluish-Green
Max. Current Efficiency	100 cd/A
Max. EQE	30%
Max. Power Efficiency	92 lm W⁻¹

Device structure	ITO/MoO3 (1 nm)/TAPC/mCP (10 nm)/mCPCN doped with Ir(III) dopants 3m (12 wt.%; 20 nm)/3TPYMB/LiF (0.5 nm)/Al (100 nm) [4]
Color	Green
Max. Current Efficiency	110.8 cd/A
Max. EQE	31.4%
Max. Power Efficiency	108.7 lm W⁻¹

Pricing

Grade	Order Code	Quantity	Price
Sublimed (>99%)	M2272A1	100 mg	£230
Sublimed (>99%)	M2272A1	250 mg	£460
Sublimed (>99%)	M2272A1	500 mg	£800
Sublimed (>99%)	M2272A1	1 g	£1450

MSDS Documentation

mCPCN MSDS sheet

Literature and Reviews

Incorporation of a CN group into mCP: a new bipolar host material for highly efficient blue and white electrophosphorescent devices, M-S. Lin et al., J. Mater. Chem., 22, 16114 (2012); DOI: 10.1039/C2JM32717A.
Versatile Thermally Activated Delayed Fluorescence Emitter for Both Highly Efficient Doped and Non-Doped Organic Light Emitting Devices, W-L. Tsai et al., Chem. Commun., 51, 13662-13665 (2015); DOI: 10.1039/C5CC05022G.
Anomalously Long-Lasting Blue PhOLED Featuring Phenyl-Pyrimidine Cyclometalated Iridium Emitter, M. Sarma et al., Chem., 3 (3), 461-476 (2017); DOI: 10.1016/j.chempr.2017.08.001.

Bis-tridentate Ir(III) Complexes with Nearly Unitary RGB Phosphorescence and Organic Light-Emitting Diodes with External Quantum Efficiency Exceeding 31%, C-Y. Kuei et al., Adv. Mater., 28 (14); 2795-2800 (2016); DOI: 10.1002/adma.201505790.

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