Order Code: M2097A1
Price excludes taxes
Not in stock (price excludes taxes)


Batch Quantity Price
M2097A1 100 mg £313.3
M2097A1 250 mg £626.6
M2097A1 500 mg £1127.8
M2097A1 1 g £2018.6
M2097A1 2 g £3555.6
M2097A1 5 g / 10 g* Please enquire

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


Batch details

Batch Mw Mn PDI Stock Info
M2097A1 58,194 18,348 3.17 In stock


General Information

Full name Poly[(2,6-(4,8-bis(5-(2-ethylhexylthio)-4-fluorothiophen-2-yl)-benzo[1,2-b:4,5-b’]dithiophene))-alt-(5,5-(1’,3’-di-2-thienyl-5’,7’-bis(2-ethylhexyl)benzo[1’,2’-c:4’,5’-c’]dithiophene-4,8-dione)]
Synonyms PCE13, PBDB-TSF
Chemical formula (C68H76F2O2S10)n
CAS number n.a.
HOMO / LUMO HOMO = -5.40 eV, LUMO = -3.60 eV [1]
Solubility Chloroform, chlorobenzene and dichlorobenzene 
Classification / Family

Organic semiconducting materials, Medium band-gap polymers, Organic Photovoltaics, Polymer solar cells, Perovskite solar cells, Hole-transport layer materials, NF-PSCs, All-polymer solar cells (all-pscs).


chemical structure of pbdb-t-sf, pce13
Chemical structure of PBDB-T-SF (PCE13).



PBDB-T-SF, also known as PCE13, is a polymer donor semiconductor material used in highly-efficient OPV devices, such as non-fullerene polymer solar cells (NF-PSCs) and all-polymer solar cells (all-PSCs).

Compared to PBDB-T (PCE12), PBDB-T-SF has deeper HOMO (-5.4 eV) and LUMO (-3.6 eV) energy levels. This is due to fluorination, which produces an electron-withdrawn effect without causing strong steric hindrance. Fluorination can also enhance either intermolecular and/or intramolecular interactions - thus improving film crystallinity and facilitating charge transport.

Higher maximum absorption coefficiency has also been observed for PBDB-T-SF.


Literature and Reviews

  1. Molecular Optimization Enables over 13% Efficiency in Organic Solar Cells, W. Zhao et al., J. Am. Chem. Soc., 139, 7148−7151 (2017); DOI: 10.1021/jacs.7b02677.
  2. Organic solar cells based on non-fullerene acceptors, J. Hou et al., Nat. Mater., 17, 119–128 (2018); doi:10.1038/nmat5063.
  3. Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor, S. Zhang et al., Adv. Mater., 1800868 (2018); DOI: 10.1002/adma.201800868.