Order Code: M2055A1
MSDS sheet


(excluding Taxes)


PJ61 is now available featuring:

  • High molecular weight, high purity (PJ61 is purified by soxhlet extraction with methanol, hexane and chlorobenzene under argon atmosphere)
  • Batch-specific GPC data (so you have confidence in what you are ordering and GPC data is always convenient for your thesis and publications)
  • Larger quantity orders (so you can plan your experiments with polymer from the same batch)


Batch Quantity Price
M2055A1 100 mg £339.6
M2055A1 250 mg £679.2
M2055A1 500 mg £1222.5
M2055A1 1 g £2200.6
M2055A1 5 g / 10 g* Please enquire

 *for 5 - 10 grams order quantity, the lead time is 4-6 weeks.

Batch Details

Batch Mw Mn PDI Stock Info
M2055A1 155,435 42,352 3.67 In stock


General Information

Full name Poly[[5,​6-​difluoro-​2-​(2-​hexyldecyl)​-​2H-​benzotriazole-​4,​7-​diyl]​-​2,​5-​thiophenediyl[4,​8-​bis[5-​(dodecylthio)​-​2-​thienyl]​benzo[1,​2-​b:4,​5-​b']​dithiophene-​2,​6-​diyl]​-​2,​5-​thiophenediyl]
Synonyms J61
CAS number 1887136-03-9
Chemical formula (C72H93F2N3S8)n
Molecular weight See Batch Details table above
HOMO / LUMO HOMO = - 5.32 eV, LUMO = - 3.08 eV; Eg = 2.24 eV [1]
Solubility Chlorobenzene, dichlorobenzene
Classification / Family Benzodithiophene, BDT, BenzotriazoleHeterocyclic five-membered ring, Organic semiconducting materials, Low band gap polymers, Organic photovoltaics, Polymer solar cells, OFETs, Photodetectors
j61, pj61 chemical structure, 1887136-03-9
Chemical structure of PJ61, CAS No. 1887136-03-9, Chemical formula (C72H93F2N3S8)n.


PJ61, also known as J61, with a medium band-gap (Eg = 2.24 eV), is a 2D-conjugated benzodithiophene-alt-difluorobenzotriazole back-boned polymer semiconductor with dodecylthio side-chains. It is used in high efficiency OPVs devices and perovskite solar cells structures.

With the intention to increase the solubility, it is also believed that the incorporation of a linear dodecylthio side chain to the thiophene unit will lower the HOMO energy level of the resulting polymer semiconductor with red-shifted absorption (J61, λmax = 552 nm, 600 nm).

A PCE of 11.77% has been demonstrated when PJ61 was used as polymer donor and m-ITIC as acceptor with a VOC of 0.912, a JSC of 18.31 mA/cm2, and an FF of 70.55% [2].

Alternatively, we also have PJ71 available to our customers.

Literature and Reviews

  1. Non-Fullerene Polymer Solar Cells Based on Alkylthio and Fluorine Substituted 2D-Conjugated Polymers Reach 9.5% Efficiency, H. Bin et al., J. Am. Chem. Soc., 138, 4657−4664 (2016); DOI: 10.1021/jacs.6b01744.
  2. Side-Chain Isomerization on an n‑type Organic Semiconductor ITIC Acceptor Makes 11.77% High Efficiency Polymer Solar Cells, Y. Yang et al., J. Am. Chem. Soc., 138, 15011−15018 (2016); DOI: 10.1021/jacs.6b09110.