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Low Band-Gap Semiconducting Polymer for Organic Solar Cells

High purity polymer available for fast and secure dispatch


Specifications | MSDS | Literature and Reviews | Technical Support


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-solubilizing 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].

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

The Luminosyn™ Range


High Purity Materials: Purified by Soxhlet extraction with methanol, hexane, and chlorobenzene under argon atmosphere.
Batch-Specific Data: Confidence in your materials with batch-specific GPC data for your thesis or publications.
Large Quantity Orders: Plan your experiments with confidence using 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)]
Synonyms
  • DPP-4T
  • DPP4T
  • pDPP
  • PDQT
CAS Number 1267540-03-3
Chemical Formula (C62H90N2O2S4)n
HOMO and LUMO HOMO = -5.2 eV, LUMO = -4.0 eV [7]
Soluble in Chloroform
Recommended Processing Solvents at 10mg/ml Chloroform
Classification or Family Quaterthiophene, Heterocyclic five-membered ring, Organic semiconducting materials, Low band gap polymers, Organic photovoltaics, Polymer solar cells, OFETs

Batch Details


Batch number MW Mn PDI Stock info
M0331A3 61,447 36,310 1.69 In stock

Chemical Structure


1267540-03-3, dpp4t
The Chemical structure of PDPP4T, CAS 1267540-03-3

Characterization


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 polymerization 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.

MSDS Documentation


PDPP4T MSDSPDPP4T MSDS sheet

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)

Technical Support


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