Order Code: M2230A1
Not in stock

With hydrophobic backbone and hydrophilic side chain, PFN-Br is is a conjugated polymer electrolyte (CPE). It serves as an electron-interface layer material in organic electronic devices (including OFET, OLED, OPV and perovskite solar cells) to improve the interfacial properties such as extraction efficiency.

PFN-Br interfacial layer embedded in OPV devices gives overall enhanced open-circuit voltage, short-circuit current density and fill factor thus higher device performance. It is also believed that the device performance of polymer LEDs with bilayer cathodes (such as. PFN-Br/Al), can be enhanced to levels comparable to (and even higher than) those obtained from using Ca or Ba cathodes due to its strong polar ionic pendant groups.

PFN-Br has been used in highly efficient OPV tandem structures with device efficiency over 17%.

General Information

Full name Poly(9,9-bis(3’-(N,N-dimethyl)-N-ethylammoinium-propyl-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene))dibromide
Synonyms PFN-bromide, PFNBr
Chemical formula (C56H80N2Br2)n 
CAS number  889672-99-5
Classification/Family Conjugated polymers, Polymer electrolyte, Polyfluorenes, Electron interface layer materials, OLED, OPV, Perovskite materials

Chemical Structure

pfn-br, pfnbr structure

Chemical structure of PFN-Br, CAS#  889672-99-5.

MSDS Documentation



Batch Quantity Price
M2230A1 100 mg £205
M2230A1 250 mg £409
M2230A1 500 mg £718

Literature and References

  1. Efficient Electron Injection from a Bilayer Cathode Consisting of Aluminum and Alcohol-/Water-Soluble Conjugated Polymers, H. Wu et al., Adv. Mater., 16, 1826–1830 (2004), DOI: 10.1002/adma.200400067.
  2. High-Performance Polymer Solar Cells Based on a Wide Bandgap Polymer Containing Pyrrolo[3,4- f]benzotriazole5,7-dione with a Power Conversion Efficiency of 8.63%, L. Lan et al., Adv. Sci., 3, 1600032 (2016); DOI: 10.1002/advs.201600032.
  3. Toward high performance inverted polymer solar cells, X. Gong et al., Polymer 53, 5437e5448 (2012); DOI: 10.1016/j.polymer.2012.09.023.
  4. ZnO:Polymer Composite Material to Eliminate Kink in J-V Curves of Inverted Polymer Solar Cells, T. Jin et al., ECS Sol. Stat. Lett., 3 (3) Q9-Q12 (2014); DOI: 10.1149/2.006403ssl.
  5. Organic and solution-processed tandem solar cells with 17.3% efficiency, L. Meng et al., Science 361 (6407), 1094-1098 (2018); DOI: 10.1126/science.aat2612.
  6. Interfacial Modification in Organic and Perovskite Solar Cells, S. Bi et al., Adv. Mater., 1805708 (2018); DOI: 10.1002/adma.201805708.

To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.