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Product Code M791-500mg
Price $313 ex. VAT

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HATCN, HIL material for enhancing the performance of OLEDs

Able to prevent interfacial mixing and erosion during fabrication

1,4,5,8,9,11-Hexaazatriphenylenehexacarbonitrile, also known as HAT-CN, is one of the members of the 1,4,5,8,9,12-hexaazatriphenylene (HAT) family, which have an electron-deficient, rigid, planar, aromatic discotic system with an excellent π–π stacking ability. For this reason, HAT-CN finds applications in organic light-emitting diodes (OLEDs) serving either as the hole-injection layer (HIL) or charge-generation layer (CGL) material.

Ossila's HATCN was used in a high impact paper (IF 7.059)

HATCN from Ossila was used in the high-impact paper (IF 7.059), Synergistic effects of charge transport engineering and passivation enabling efficient inverted perovskite quantum-dot light-emitting diodes, J. Pan et al., J. Mater. Chem. C, 8, 5572-5579 (2020); DOI: 10.1039/D0TC00661K.

It has been proven that using HAT-CN as a hole injection layer (HIL) material can dramatically enhance the performance of solution-processed organic light-emitting diodes [2]. Lin et al further demonstrated that the external quantum efficiency, current efficiency, and power efficiency of the HAT-CN based devices were higher than or almost similar to those of optimised PEDOT:PSS-based devices. Solution-processed HAT-CN is promising as a novel alternative to conventional PEDOT:PSS HILs, due to its efficient carrier-injection capability and the capacity to prevent interfacial mixing and erosion during fabrication. 

General Information

CAS Number 105598-27-4
Chemical Formula C18N12
Molecular Weight 384.27 g/mol
Absorption λmax 282, 321 nm (in CH2Cl2)
Fluorescence λem 422 nm (in CH2Cl2)
HOMO/LUMO HOMO 7.5 eV, LUMO 4.4 eV [1]





Classification / Family Charge-generation layer (CGL) materials, Hole-injection layer materials (HIL), OLED and PLED materials, Organic electronics, Perovskite solar cells

Product Details


Sublimed M791 >99.0%

Unsublimed M792 >98.0%

Thermal Gravimetric Analysis (TGA) 430 °C (0.5% weight loss)
Appearance Dark yellow powder/crystals

Chemical Structure

Chemical structure of HATCN
Chemical Structure of 1,4,5,8,9,11-Hexaazatriphenylenehexacarbonitrile (HATCN)

Device Structure(s)

The following are all PEDOT:PSS free devices.

Device Structure ITO/HAT-CN(10 nm)/HAT-CN:TAPC(2:1, 60 nm)/TAPc(20 nm)/TcTa:Be(pp)2:Ir(mppy)3(1:1:8 wt% 10 nm)/Be(pp)2:Liq (1:10%, 35 nm)/Liq(1 nm)/Al(1 nm)/HAT-CN(20 nm)/HAT-CN:TAPC(2:1, 10 nm)/TAPC(40 nm)/ TcTa:Be(pp)2:Ir(mppy)3(1:1:8 wt% 10 nm)/Be(pp)2(15 nm)/Be(pp)2:Liq (1:10%, 35 nm)/Liq(1 nm)/Al(100 nm) [1]
Colour green light emitting device  Green
Max. Current Efficiency 241 cd/A
Max. Power Efficiency 143 lm W−1
Device Structure ITO/HAT-CN (10 nm)/TAPC (45 nm)/BCzSCN*:FIrpic:PO-01 (8 wt%, 0.5 wt%, 20 nm)/TmPyPB (50 nm)/Liq (2 nm)/Al (120 nm) [3]
Colour blue light emitting device  Blue
Max. EQE 22%
Max. Current Efficiency 66.0 cd/A
Max. Power Efficiency 64.0 lm W−1
Device Structure ITO/HAT-CN (10 nm)/TAPC (45 nm)/mCP:Ir(dbi)10 wt% (20 nm)/TmPyPB (40 nm)/Liq (2 nm)/Al (120 nm) [4]
Colour sky blue light emitting device  Sky Blue
Max. EQE 23.1%
Max. Current Efficiency 61.5 cd/A
Max. Power Efficiency 43.7 lm W1  
Device Structure ITO (150 nm)/HAT-CN (4 nm)/VB-FNPD* (35 nm)/TCTA:Ir(mppy)3 10 wt% (20 nm)/TPBi (60 nm)/ CsF (1 nm)/Al (120 nm) [5]
Colour green light emitting device  Green
Max. EQE 14.7%
Max. Current Efficiency 50.9 cd/A
Max. Power Efficiency 55.0 lm W−1
Device Structure Graphene (2–3 nm)/TAPC(30 nm)/HAT-CN(10 nm)/TAPC(30 nm)/HAT-CN(10 nm)/TAPC(30 nm)/ TCTA:FIrpic (5 nm)/DCzPPy: FIrpic (5 nm)/BmPyPB (40 nm)/LiF (1 nm)/Al (100 nm) [6]
Colour blue light emitting device  Blue
Max. EQE 15.1%
Max. Power Efficiency 14.5 lm W−1
Device Structure ITO/HATCN (5 nm)/NPB (40 nm)/TCTA (10 nm)/mCP:6 wt%2CzPN (11 nm)/TAZ:4 wt% PO-01 (4 nm)/TAZ (40 nm)/LiF (0.5 nm)/Al (150 nm) [7]
Colour white light emitting device  White
Max. EQE 38.4%
Max. Power Efficiency 80.1 lm W−1
Device Structure Ag (100 nm)/ITO (10 nm)/DNTPD* (30 nm)/NPB (44 nm)/Bebq2:3 wt% Ir(mphmq)2(acac) (20 nm)/Bphen (31 nm)/Bphen: 5 wt% Li (10 nm)/HATCN (7 nm)/NPB (63 nm)/Bebq2: 3 wt% Ir(mphmq)2(acac) (20 nm)/Bphen (40 nm)/Liq (1 nm)/Mg:Ag (10:1; 18 nm)/NPB (60 nm) [8]
Colour red light emitting device  Red
Max. EQE 26.5%
Max. Current Efficiency 95.8 cd/A
Device Structure ITO/HATCN (5 nm)/NPB (30 nm)/TCTA (10 nm)/mCP (10 nm)/DMAC-DPS:PO-01* (0.8 wt% 30 nm)/DPEPO (10 nm)/Bphen (30 nm)/LiF (0.5 nm)/Al(150 nm) [9]
Colour white light emitting device  White
Max. EQE 20.8%
Max. Power Efficiency 51.2 lm W−1

*For chemical structure information please refer to the cited references.


Grade Order Code Quantity Price
Unsublimed (>99.0% purity) M792 1 g £115
Sublimed (>99.0% purity) M791 500 mg £250
Sublimed (>99.0% purity) M791 1 g £400
Unsublimed (>99.0% purity) M792 5 g £420
Sublimed (>99.0% purity) M791 5 g £1650
Sublimed (>99.0% purity) M791 10 g £2900

MSDS Documentation


Literature and Reviews

  1. Highly efficient and stable tandem organic light-emitting devices based on HAT-CN/HAT-CN:TAPC/TAPC as a charge generation layer, Y. Dai et al., J. Mater. Chem. C, 3, 6809-6814 (2015);DOI: 10.1039/C4TC02875A.
  2. Solution-processed hexaazatriphenylene hexacarbonitrile as a universal hole-injection layer for organic light-emitting diodes, H. Lin et al., Org. Electronics 14, 1204–1210 (2013);
  3. Bipolar host materials for high efficiency phosphorescent organic light emitting diodes: tuning the HOMO/LUMO levels without reducing the triplet energy in a linear system, L. Cui et al., J. Mater. Chem. C, 1, 8177-8185 (2013); DOI: 10.1039/C3TC31675K.
  4. Highly efficient phosphorescent organic light-emitting diodes using a homoleptic iridium(III) complex as a sky-blue dopant, J. Zhuang et al., Org. Electronics 14, 2596–2601 (2013);
  5. High-Performance Hybrid Buffer Layer Using 1,4,5,8,9,11-Hexaazatriphenylenehexacarbonitrile/Molybdenum Oxide in Inverted Top-Emitting Organic Light-Emitting Diodes, C-H. Park et al., ACS Appl. Mater. Interfaces, 7 (11), 6047–6053 (2015); DOI: 10.1021/am5091066.
  6. Multilayered graphene anode for blue phosphorescent organic light emitting diodes, J. Hwang et al., Appl. Phys. Lett. 100, 133304 (2012);
  7. Highly efficient and color-stable hybrid warm white organic light-emitting diodes using a blue material with thermally activated delayed fluorescence, D. Zhang et al., J. Mater. Chem. C, 2, 8191-8197 (2014); DOI: 10.1039/c4tc01289e.
  8. High efficiency red top-emitting micro-cavity organic light emitting diodes, M. Park et al., 22, (17), Optics Express, 19919 (2014), DOI:10.1364/OE.22.019919.
  9. Highly Efficient Simplified Single-Emitting-Layer Hybrid WOLEDs with Low Roll-off and Good Color Stability through Enhanced Förster Energy Transfer, D. Zhang et al., ACS Appl. Mater. Interfaces, 7 (51), 28693–28700 (2015); DOI: 10.1021/acsami.5b10783

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.

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