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Product Code M0331A2-100mg
Price £260 ex. VAT

Low Band-Gap Semiconducting Polymer for Organic Solar Cells

High purity polymer available for fast and secure dispatch

Overview | Specifications | Pricing and Options  | MSDS | Literature and Reviews

PDPP4T (CAS number 1267540-03-3) is a promising class of semiconducting polymers for organic solar cells. This is due to its small optical band gap and high charge-carrier mobility. It is also known as Poly[2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione -3,6-diyl)-alt-(2,2’;5’,2’’;5’’,2’’’-quaterthiophen-5,5’’’-diyl)] or DPP4T.

PDPP4T from Ossila was used in a high-impact paper (IF 14.92)

PDPP4T from Ossila was used in the high-impact paper (IF 14.92), Tuning charge transport dynamics via clustering of doping in organic semiconductor thin films, C. Boyle et al., Nat. Commun., 10, 2827 (2019); DOI: 10.1038/s41467-019-10567-5.

With one DPP unit as electron-withdrawing and four five-membered thiophene as electron-rich units in its backbone, PDPP4T is a low-band gap polymer semiconductor with a planar structure. The alkyl chain attached to the DPP unit serves as a high-solubilising group and has a tendency to crystallize to ensure a better packing film. A hole mobility greater than 1 cm2 V-1 s-1 [8] has been reported in top-contact bottom-gate devices.

Device performance PCE of 7.59% with a VOC of 0.61 V, JSC of 17.95 mA/cm 2 , and FF of 69.6%, is reported with PC71BM as electron acceptor [1]. This is using a solvent swelling assisted sequential deposition (SSA-SD) method to produce bulk heterojunction PSCs based on a crystalline diketopyrrolopyrrole (DPP) polymer and PC71BM. By adding polymers with high mobility, like DPP-DTT, device performance with higher PCE should be expected [5].

Luminosyn™ PDPP4T

Luminosyn™ PDPP4T is now available.

High Purity and
High Molecular Weight

Purified by Soxhlet extraction with methanol, hexane, and chlorobenzene under argon atmosphere

GPC Data

Have confidence in what you are ordering with batch-specific GPC data for your thesis or publications

Large Quantity

Implement consistency in your experiments with polymers from the same batch

General Information

Full Name Poly[2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione -3,6-diyl)-alt-(2,2’;5’,2’’;5’’,2’’’-quaterthiophen-5,5’’’-diyl)]
  • DPP-4T
  • DPP4T
  • pDPP
  • PDQT
CAS Number 1267540-03-3
Chemical Formula (C62H90N2O2S4)n
Molecular Weight See batch details table below
HOMO and LUMO HOMO = -5.2 eV, LUMO = -4.0 eV [7]
Classification or Family Quaterthiophene, Heterocyclic five-membered ring, Organic semiconducting materials, Low band gap polymers, Organic photovoltaics, Polymer solar cells, OFETs
PDPP4T chemical structure
The chemical structure and physical form of PDPP4T


Soxhlet extraction was carried out using methanol, acetone, hexane, and then chlorobenzene as washing solvents under argon. Chlorobenzene fraction was concentrated, precipitated with methanol, and dried under vacuum at 40 oC for 48 hours. GPC was carried out using 1,2,4-trichlorobenzene as eluent at 140 oC by using polystyrene as standards.

GPC analysis PDPP4T
Molecular weight distribution of PDPP4T chlorobenzene Soxhlet fraction from GPC analysis

Synthetic Route

DPP4T was synthesized by using 3,6-bis(5-bromothiophen-2-yl)-2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione and 5,5'-bis(trimethylstannyl)-2,2'-bithiophene as starting materials via Stille Coupling polymerisation in chlorobenzene. Targeted polymer was purified using Soxhlet extraction with methanol, acetone, hexane and finally chlorobenzene as washing and extracting solvents.

PDPP4T synthesis
PDPP4T synthesis via a Stille Coupling reaction with 3,6-bis(5-bromothiophen-2-yl)-2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione and 5,5-bis(trimethylstannyl)-2,2-bithiophene as starting materials.


Batch Quantity Price
M0331A2 100 mg £260
M0331A2 250 mg £520
M0331A2 500 mg £950
M0331A2 1 g £1700
M0331A2 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
M331 89,700 48,950 1.83 Discontinued
M332 171,138 76,226 2.45 Discontinued
M333 84,446 42,475 1.99 Discontinued
M0331A1 61,581 33,654 1.83 Discontinued
M0331A2 75,431 43,063 1.75 In stock

MSDS Documentation


Literature and Reviews

  1. Sequential Deposition: Optimization of Solvent Swelling for High-Performance Polymer Solar Cells, Y. Liu et al., ACS Appl. Mater. Interfaces, 7, 653-661 (2015)
  2. Copolymers of diketopyrrolopyrrole and thienothiophene for photovoltaic cells, J.C. Bijleveld et al., J. Mater. Chem., 21, 9224-9231 (2011)
  3. Diketopyrrolopyrrole-Based π‑Conjugated Copolymer Containing β‑Unsubstituted Quintetthiophene Unit: A Promising Material Exhibiting High Hole-Mobility for Organic Thin-Film Transistors, Z. Yi et al., Chem. Mater., 24, 4350-4356 (2012)
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