Order Code: M2079A1
MSDS sheet


(excluding Taxes)



Batch Quantity Price
M2079A1 100 mg £204.5
M2079A1 250 mg £409
M2079A1 500 mg £683.5


General Information

Full name Poly[9,​9-​dioctyl-​9',​9'-​bis[3-​(trimethylammonio)​propyl]​[2,​2'-​bi-​9H-​fluorene]​-​7,​7'-​diyl iodide
Synonyms PFN-iodide
Chemical formula (C54H76N2)n 2I
CAS number 1687752-60-8
Classification/Family Conjugated polymers, Polymer electrolyte, Polyfluorenes, Electron interface layer materials, OLED, OPV, Perovskite materials
pfn-i, pfn-iodide
Chemical structure of PFN-I. CAS no.: 1687752-60-8. Chemical formula: (C54H76N2)n 2I.


PFN-I is the diiodide salt of PFN, and is a conjugated polymer electrolyte (CPE). It is commonly used as an electron-interface layer material in organic electronic devices (including OLED, OPV and perovskite solar cells) to improve extraction efficiency. PFN-I is also used as an active layer material for blue OLED devices.

It is believed that the device performance of polymer LEDs with bilayer cathodes (such as. PFN-I/Al), can be enhanced to levels comparable to (and even higher than) those obtained from using Ca or Ba cathodes [1].

Due to its strong polar ionic pendant groups, PFN-I is soluble in methanol and water, 

 EL Polymer Cathode Luminance (cd m -2) QE (%) LE (Cd A-1)
MEH-PPV Al 6 0.02 0.02
MEH-PPV Ba/Al 749 2.46 2.1
MEH-PPV PNF-I/Al 773 2.85 2.4


  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. Bimolecular Excited-State Electron Transfer with Surprisingly Long-Lived Radical Ions, A. A. Alsam et al., J. Phys. Chem. C 2015, 119, 21896−21903 (2015); DOI: 10.1021/acs.jpcc.5b06636.
  3. High-performance semi-transparent polymer solar cells possessing tandem structures, C. Chen et al., Energy. Environ. Sci., 6, 2714-2720( 2013); DOI: 10.1039/c3ee40860d.
  4. Water/alcohol soluble conjugated polymers for the interface engineering of highly efficient polymer light-emitting diodes and polymer solar cells, Z. Hu et al., Chem. Commun., 51, 5572 (2015); DOI: 10.1039/c4cc09433f.
  5. Overview of high-efficiency organic photovoltaic materials and devices, Renew. Sust. Energ. Rev., 52, 1527–1538 (2015);


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