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Diketopyrrolopyrrole - thienothiophene copolymer, Diketopyrrolopyrrole p-type semiconductor, Xerox XSC4p
Linear Formula:
CAS Number:



mol wt

average Mw 40,000-60,000 by GPC


dark blue


>200 °C


820 nm (thin film)

orbital energy

HOMO 5.2 eV 

OFET device performance

Bottom gate top contact device with silane modified SiO2 dielectric.Processing method spin coating; thermal annealing at 140 °C/ 10 min

  • Semiconductor Type:
  • Mobility: 0.60 cm2/V·s
  • On/Off Ratio: 10^6 - 10^7



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General description

PDPP2T-TT-OD is thiophene based conducting polymer with diketopyrrolo-pyrrole (DPP) as the electron deficient group and octyldodecyl acting as a pendant attachment. Its structure has a DPP-thiophene and a variable bithiophene (2T). It has a high charge carrying mobility that makes it useful in the development of organic electronics based devices.


PDPP2T-TT-OD can be used as a π-conjugating polymer that can be used in the fabrication of a variety of devices such as organic thin film transistors (OTFTs), photovoltaic cells, polymeric solar cells and field effect transistors (FETs).
Xerox demonstrated device performance on a n-doped silicon wafer with 100 - 300 nm native SiO2 dielectric modified with an octadecyltrichlorosilane self-assembled
monolayer. An XSC4p film was deposited by spin-coating a 0.5 – 0.7 wt. % polymer solution at 1000 rpm for 60 sec. The film was dried in a vacuum oven for 10 min at 80
°C and then thermally annealed at 140 °C for 10 min. Gold source-drain electrodes were deposited by vacuum evaporation using a shadow mask (90 micrometer channels).
The electrical performance was characterized using a Keithley SCS-4200 system. The reported mobility is the average saturated mobility of four devicεs ± the standard

Legal Information

Product of Xerox®. Xerox® is a registered trademark of Xerox Corporation.
Xerox is a registered trademark of Xerox Corporation

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Molecular packing of high-mobility diketo pyrrolo-pyrrole polymer semiconductors with branched alkyl side chains
Zhang X, et al.
Journal of the American Chemical Society, 133(38), 15073-15084 (2011)
Weiwei Li et al.
Advanced materials (Deerfield Beach, Fla.), 25(23), 3182-3186 (2013-03-07)
A high-molecular-weight conjugated polymer based on alternating electron-rich and electron-deficient fused ring systems provides efficient polymer solar cells when blended with C60 and C70 fullerene derivatives. The morphology of the new polymer/fullerene blend reduces bimolecular recombination and allows reaching high
Universal correlation between fibril width and quantum efficiency in diketopyrrolopyrrole-based polymer solar cells
Li W, et al.
Journal of the American Chemical Society, 135(50), 18942-18948 (2013)
Xinran Zhang et al.
Journal of the American Chemical Society, 133(38), 15073-15084 (2011-08-06)
We describe a series of highly soluble diketo pyrrolo-pyrrole (DPP)-bithiophene copolymers exhibiting field effect hole mobilities up to 0.74 cm(2) V(-1) s(-1), with a common synthetic motif of bulky 2-octyldodecyl side groups on the conjugated backbone. Spectroscopy, diffraction, and microscopy
Copolymers of diketopyrrolopyrrole and thienothiophene for photovoltaic cells
Bijleveld JC, et al.
Journal of Materials Chemistry, 21(25), 9224-9231 (2011)


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