Order Code: M2050A1
MSDS sheet


(excluding Taxes)


PBDD4T-2F is now available, featuring:

  • High purity and high molecular weight (PBDD4T-2F is purified by Soxhlet extraction with methanol, hexane and chlorobenzene under an argon atmosphere)
  • Batch-specific GPC data (so you have confidence in what you are ordering. Also, GPC data is always convenient for your thesis and publications)
  • Large-quantity orders (so you can plan your experiments with polymers from the same batch)


Batch Quantity Price
M2050A1 100 mg £330.7
M2050A1 250 mg £661.4
M2050A1 500 mg £1190.5
M2050A1 1 g £2142.9
M2050A1 5 - 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
M2050A1 138,330 53,285 2.60 in stock


General Information

Full name Poly[[5,​7-​bis(2-​ethylhexyl)​-​4,​8-​dioxo-​4H,​8H-​benzo[1,​2-​c:4,​5-​c']​dithiophene-​1,​3-​diyl]​[3,​3'''-​bis(2-​ethylhexyl)​-​3'',​4'-​difluoro[2,​2':5',​2'':5'',​2'''-​quaterthiophene]​-​5,​5'''-​diyl]​]
Synonyms BDD4T-2F
Chemical formula (C58H72F2O2S6)n
CAS number 1890205-85-2
HOMO / LUMO HOMO = -5.39 eV, Eg = 1.76 eV [1]
Classification / Family Polythiophenes, Organic n-type semiconducting materials, Organic Photovoltaics, Polymer solar cells, Tandem Solar Cells, Electron-acceptor polymers, OFETs, Perovskite solar cells.
Suggesting solvents Chlorobenzene, dichlorobenzene
PBDD4T-2F chemical structure
Chemical structure of PBDD4T-2F; Chemical formula: (C58H72F2O2S6)n.


PBDD4T-2F polymer semiconductor has been developed for OPV applications (including both fullerene and non-fullerene polymer solar cells) and has an efficiency of over 9% [1]. It has been built into tandem solar cells, and PCE reaching 13% was reported with the following structure: PBDD4T-2F:PC71BM (front cell) & PBDTTT-E-T:IEICO (rear cell) [2].

When compared to PBDD4T, PBDD4T-2F has a stronger tendency to aggregate in solution. It also has a stronger π–π stacking compact in solid thin-film, and shows a deeper HOMO energy level of -5.39 eV.

PBDD4T-2F finds application in both fullerene and NFAs such as ITIC and P(NDI2OD-T2) polymer solar cells with highly efficient device performances.

Literature and Reviews

  1. A Fluorinated Polythiophene Derivative with Stabilized Backbone Conformation for Highly Efficient Fullerene and Non-Fullerene Polymer Solar Cells, S. Zhang et al., Macromolecules, 49 (8), 2993–3000 (2016); DOI: 10.1021/acs.macromol.6b00248.
  2. Achieving 12.8% Efficiency by Simultaneously Improving  Open-Circuit Voltage and Short-Circuit Current Density in Tandem Organic Solar Cells, Y. Qin et al., AdvMater., 29, 1606340 (2017); DOI: 10.1002/adma.201606340.
  3. Over 11% Efficiency in Tandem Polymer Solar Cells Featured by a Low-Band-Gap Polymer with Fine-Tuned Properties, Z. Zheng, Adv. Mater., 28, 5133–5138 (2016); DOI: 10.1002/adma.201600373.