FREE shipping to on qualifying orders when you spend or more, processed by Ossila BV. All prices ex. VAT. Qualifying orders ship free worldwide! Fast, secure, and backed by the Ossila guarantee. It looks like you are visiting from , click to shop in or change country. Orders to the EU are processed by our EU subsidiary.

It looks like you are using an unsupported browser. You can still place orders by emailing us on, but you may experience issues browsing our website. Please consider upgrading to a modern browser for better security and an improved browsing experience.

Image missing
Product Code M2216B1-250mg
Price £250 ex. VAT

4CzTPN-Ph, orange emitting material used in highly efficient TADF-OLED devices

Used to effectively prevent molecular interactions

4CzTPN-Ph (CAS number 1416881-55-4), a well-known orange emitting material that is widely used in highly efficient TADF-OLED devices.

Comparing to 4CzTPN, the eight phenyl groups at 3,6-positions of carbazole moieties can further increase the electron-donating ability for 4CzTPN-Ph while at the same time greater steric hindrance is introduced. The increased steric hindrance can effectively prevent molecular interactions, i.e. the formation of the excimer.

With the donor-acceptor structure enabling the molecule with good two emission characteristics, 4CzTPN-Ph can also be used for both one and two-photon cellular fluorescence imaging as nanoparticles dispersed in water with good dispersibility, superior resistance against photodegradation and photobleaching and low cytotoxicity.

General Information

CAS number 1416881-55-4
Full name 2,3,5,6-tetrakis(3,6-diphenylcarbazol-9-yl)-1,4-dicyanobenzene
Synonyms 2,3,5,6-tetrakis(3,6-diphenyl-9H-carbazol-9-yl)terephthalonitrile
Chemical formula C104H64N6
Molecular weight 1397.66 g/mol
Absorption λmax 377 nm, 547 nm in toluene
Fluorescence λem 577 nm in toluene
HOMO/LUMO HOMO = 5.90 eV, LUMO = 4.0 eV, T1 = 2.21 eV [1]
Classification / Family Carbazole, TADF materials, Orange dopant materials, Sublimed materials

* Measurable with an optical spectrometer, see our spectrometer application notes.

Product Details

Purity Unsublimed >98%; Sublimed >99.0% (1H NMR)
Melting point n.a.
Appearance Orange powder/crystals

* Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials.

Chemical Structure

Chemical Structure of 2,3,5,6-tetrakis(3,6-diphenylcarbazol-9-yl)-1,4-dicyanobenzene (4CzTPN-Ph).

Device Structure(s)

Device structure ITO/MoO3 (3 nm)/mCP (20 nm)/mCBP:PO-T2T* (20 nm)/PO-T2T:5.0 wt.% 4CzTPN-Ph (10 nm)/ PO-T2T (40 nm)/LiF (0.8 nm)/Al [2]
Colour White white light emitting device
Max. Current Efficiency 11.88 cd/A
Max. EQE 5.75%
Max. Power Efficiency 9.33 Im/W
Device structure ITO/MoO3 (5 nm)/mCP (40 nm)/DMAC-DPS: 0.4 wt.% 4CzTPN-Ph (30 nm)/SPPO13* (50 nm)/CsF (1 nm)/Al (150 nm) [3]
Colour White white light emitting device
Max. EQE 14.7%
Max. Power Efficiency 35.6 Im/W
Device structure ITO/MoO3 (5 nm)/mCP (40 nm)/DMAC-DPS: 9 wt.% 4CzTPN-Ph (30 nm)/SPPO13 (50 nm)/CsF (1 nm)/Al (150 nm) [3]
Colour Orange orange light emitting device
Max. EQE 11.0%
Max. Power Efficiency 36.6 Im/W
Device structure ITO/HATCN (10 nm)/Tris-PCz (35 nm)/10 wt.% 4CzPN:mCBP (G-EML) (5 nm)/6 wt.% 4CzPN:2 wt.% 4CzTPN-Ph:mCBP (R-EML) (4 nm)/10 wt.% 3CzTRZ:PPT (B-EML) (6 nm)/PPT (50 nm)/LiF (0.8 nm)/Al (100 nm) [4]
Colour White white light emitting device
Max. Power Efficiency 34.1 lm W1
Max. Current Efficiency 45.6 cd/A
Max. EQE 17.0%
Device structure ITO/HATCN (10 nm)/Tris-PCz (35 nm)/10 wt. % 4CzPN:mCBP (G-EML) (5 nm)/6 wt. % 4CzPN:2 wt. % 4CzTPN-Ph:mCBP (R-EML) (4 nm)/10 wt. % 3CzTRZ:PPT (B-EML) (6 nm)/PPT (50 nm)/LiF (0.8 nm)/Al (100 nm) [4]
Colour White white light emitting device
Max. Current Efficiency 13.13 cd/A 
Max. EQE 6.8%
Max. Power Efficiency 4.75 lm W-1

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

MSDS Documentation



Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2216A1 250 mg £500
Sublimed (>99.0% purity) M2216A1 500 mg £900
Sublimed (>99.0% purity) M2216A1 1 g £1400
Unsublimed (>98.0% purity) M2216B1 250 mg £250
Unsublimed (>98.0% purity) M2216B1 500 mg £440
Unsublimed (>98.0% purity) M2216B1 1 g £680

Literature and Reviews

  1. Guest concentration, bias current, and temperature-dependent sign inversion of magneto-electroluminescence in thermally activated delayed fluorescence devices, J. Deng et al., Sci. Rep., 7:44396 (2017); DOI: 10.1038/srep44396.
  2. Simple structured hybrid WOLEDs based on incomplete energy transfer mechanism: from blue exciplex to orange dopant, T. Zhang et al., Sci. Rep., 5:10234 (2015); DOI: 10.1038/srep10234.
  3. Simple-structure organic light emitting diodes: Exploring the use of thermally activated delayed fluorescence host and guest materials, Z. Liu et al., Org. Electron., 41, 237-244 (2017); doi: 0.1016/j.orgel.2016.11.010.
Return to the top