Order Code: B151
MSDS sheet


(excluding Taxes)


General Information

CAS number 1504626-07-6
Chemical formula C54H84Br2F2N2S3
Molecular weight 1055.26 g/mol


  • PCE11 monomer
  • PffBT4T-2OD monomer
  • Classification / Family

    Benzothiadiazole, Difluorobenzo[c][1,2,5]thiadiazole, Semiconductor synthesis, Low band gap polymers, Acceptors, Organic photovoltaics, Polymer solar cells


    Product Details

    Purify >98%
    Melting point No data available
    Color Red powder


    Chemical Structure

    pce11 monomer
    Chemical structure of 4,7-bis(5-bromo-4-(2-octyldodecyl)thiophen-2-yl)-5,6-difluorobenzo[c][1,2,5]thiadiazole, PCE11 monomer. Chemical formula: C54H84Br2F2N2S3.



    4-7-bis(5-bromo-4-2-octyldodecylthiophen-2-yl)-5,6-difluorobenzo[c][1,2,5]-thiadiazole, also known as PCE11 monomer, is a monomer with difluoro attached on benzothiadiazole unit which gives greater electron withdrawn ability to further modify the energy gap of the polymer semiconductor materials. Polymerised with 5,5'-bis(trimethylstannyl)-2,2'-thiophene, PCE11 monomer yields the polymer PffBT4T-2OD (PCE11) which has a power conversion efficiency over 10%.

    PCE11 synthesis with 4-7-bis(5-bromo-4-2-octyldodecylthiophen-2-yl)-5,6-difluorobenzo[c][1,2,5]-thiadiazole and 2,5-bis(trimethylstannyl)thieno[3,2-b]thiophene
    Synthesis of PCE11 with 4-7-bis(5-bromo-4-2-octyldodecylthiophen-2-yl)-5,6-difluorobenzo[c][1,2,5]-thiadiazole and 2,5-bis(trimethylstannyl)thieno[3,2-b]thiophene.

     NMR Characterisation


    1H NMR pce11-monomer in CDCl3
    1H NMR spectrum of 4,7-bis(5-bromo-4-(2-octyldodecyl)thiophen-2-yl)-5,6-difluorobenzo[c][1,2,5]thiadiazole in CDCl3: Instrument AVIIIHD400 (see full version).

    Literature and Reviews

    1. Aggregation and morphology control enables multiple cases of high-efficiency polymer solar cells, Y. Liu, et al., Nat. Comm., 5, 5293 (2014)
    2. Substituent Effects on Physical and Photovoltaic Properties of 5,6-Difluorobenzo[c][1,2,5]thiadiazole-Based D–A Polymers: Toward a Donor Design for High Performance Polymer Solar Cells, Y. Wang, et al., Macromolecules, 46 (24), 9587–9592 (2013).


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