Order Code: M1001
MSDS sheet


(excluding Taxes)


PBDB-T (PCE12) is now available featuring:

  • High molecular weight, high purity and good solubility (PBDB-T 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 necessary for your publications
  • Now you can order larger quantity so you can plan your experiments with polymer from the same batch


Batch Quantity Price
M1001 100 mg £348.20
M1001 250 mg £736.50
M1001 500 mg £1375.60
M1001 1 g £2235.50
M1001 5 g / 10 g* Please enquire

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


Batch details





M1001 117,406 58,737 2.0


General Information

Full name Poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophen-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 PBDB-T
Chemical formula (C68H78O2S8)n
CAS number 145929-80-4
HOMO / LUMO HOMO = -5.33 eV, LUMO = -2.92 eV [1]
Classification / Family

Organic semiconducting materials, Low band gap polymers, Organic Photovoltaics, Polymer solar cells, Perovskite solar cells, Hole transport layer materials

pbdb-t, pce12 chemical structure
Chemical structure of PBDB-T (PCE12); Chemical formula: (C68H78O2S8)n.



PBDB-T (PCE12) is one of the highest performing donor polymers for OPVs, having reported efficiencies exceeding 12% [1, 2], and a certified efficiency approaching 11% [3]. These efficiencies were achieved when PBDB-T was used in conjunction with recently-reported non-fullerene acceptors, including ITIC, in inverted architecture devices. These devices also exhibited excellent thermal stability, making the combination a promising candidate for the proposed 10/10 target of 10% efficiency and 10 year lifetimes.

PBTB-T (PCE12) is easy to process, simplifying device fabrication whilst providing high performance.

This polymer could also be used as a hole transporting material in perovskite solar cells due to good HOMO alignment with the valence band of commonly used perovskites.


Usage Details

The device structure of the certified devices was:

ITO / ZnO (30 nm) / PBDB-T:ITIC (100 nm) / MoO3 (10 nm) / Al (100 nm)

PBDB-T:ITIC solution details:

  • Blend ratio: 1:1,
  • Concentration: 20 mg/ml,
  • Solvent: chlorobenzene,
  • Additive: 0.5% diiodooctane.


Literature and Reviews

  1. Energy-Level Modulation of Small-Molecule Electron Acceptors to Achieve over 12% Efficiency in Polymer Solar Cells, S. Li et al, Adv. Mater., 28, 9423–9429 (2016); DOI: 10.1002/adma.201602776.
  2. Ternary Polymer Solar Cells based on Two Acceptors and One Donor for Achieving 12.2% Efficiency, W. Zhao et al., Adv. Mater., (2016); DOI: 10.1002/adma.201604059.
  3. Fullerene-Free Polymer Solar Cells with over 11% Efficiency and Excellent Thermal Stability, W. Zhao et al., Adv. Mater., 28, 4734–4739 (2016); DOI: 10.1002/adma.201600281.