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Product Code M2096A3-100mg
Price $338 ex. VAT

PCPDTBT, polymer semiconductor used for high-performance OPV devices

Exhibits excellent charge-carrier properties


Overview | Specifications | MSDS | Literature and Reviews


PCPDTBT (CAS number 920515-34-0), copolymer of cyclopenta dithiophene and benzothiadiazole, is a low band-gap polymer semiconductor that is widely used for high-performance OPV devices with excellent charge-carrier properties.

Like PSBTBT, PCPDTBT has an ideal bandgap value (1.5 eV). This not only covers a broad range in the visible light spectrum, but also extends its spectral absorption into the infrared region.

In most cases, PCPDTBT is considered to be amorphous due to its non-linear side-chain structures. However, highly-crystalline films of PCPDTBT with branched side-chains can also be achieved by solvent vapour crystallisation [2].

General Information


Full Name Poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta [2,1-b;3,4-b′]dithiophene)-alt-4,7(2,1,3-benzothiadiazole)]
Synonyms C-PCPDTBT
CAS Number 920515-34-0
Chemical Formula (C31H38N2S3)n
Molecular Weight See Batch Details table below
HOMO / LUMO HOMO = - 5.3 eV, LUMO = - 3.6 eV [1]
Soluble in Chloroform, chlorobenzene, dichlorobenzene
Recommended Processing Solvents at 10mg/ml Chlorobenzene
Classification / Family Cyclopenta dithiophene, Hole-transport layer materials, Organic semiconducting materials, Low band-gap polymers, Organic photovoltaics, All-polymer solar cells, OFETs, Perovskite solar cells.

Batch Details


Batch number MW PDI Stock info
M2096A3 66,499 2.09 Low Stock
M2096A4 63,376 1.92 In Stock

Chemical Structure


PCPDTBT chemical structure
Chemical structure of PCPDTBT

MSDS Documentation


PCPDTBT MSDSPCPDTBT MSDS Sheet

Literature and Reviews


  1. Novel Ternary Blend of PCDTBT, PCPDTBT and PC70BM for the Fabrication of Bulk Heterojunction Organic Solar Cells, T. Pratyusha et al., Mater. Today: Proceedings 4 5067–5073 (2017).
  2. Highly Crystalline Films of PCPDTBT with Branched Side Chains by Solvent Vapor Crystallization: Infl uence on Opto-Electronic Properties, F. S. U. Fischer et al., Adv. Mater. 2015, 27, 1223–1228; DOI: 10.1002/adma.201403475.
  3. Effect of ambient temperature on the efficiency of the PCPDTBT:PC71BM BHJ solar cells, Z. Ahmad et al., Appl. Phys. A 123:486 (2017); DOI 10.1007/s00339-017-1098-8.

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