791989 Sigma-Aldrich


Synonym: Diketopyrrolopyrrole - thienothiophene copolymer, Diketopyrrolopyrrole p-type semiconductor, Xerox XSC4p

  • CAS Number 1444870-74-9

  • Linear Formula (C60H90N2O2S4)n

  •  NACRES NA.23



Related Categories Materials Science, Organic Field Effect Transistor (OFET) Materials, Organic and Printed Electronics, p-Type Organic Semiconductors, p-Type Small Molecules More...
Quality Level   100
form   solid (dark blue)
mol wt   average Mw 40,000-60,000 by GPC
mp   >200 °C
λmax   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
PDI   2.5‑3.0


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


100 mg in glass insert

Legal Information

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

Xerox is a registered trademark of Xerox Corporation

Safety & Documentation

Safety Information

GHS07  GHS07
Signal word 
Hazard statements 
Precautionary statements 
Target organs 
Respiratory system
NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles


High-Performance Semiconductor Polymers Based on Diketopyrrolopyrrole and Thienothiophene

Tony Wigglesworth, Yiliang Wu, Cuong Vong and Matthew Heuft Xerox Research Centre of Canada, Mississauga ON, L5K 2L1 Email:
Keywords: Electronics, Nucleic acid annealing, Printed electronics, Semiconductor, Solar cells, Solvents

Organic Photovoltaic Applications for IoT, Architecture, and Wearables

1Merck Chemicals Ltd, Chilworth Technical Centre, University Parkway, Southampton. SO16 7QD, U.K. 2Merck KGaA, Frankfurter Str. 250, 64293 Darmstadt I Germany 3Merck Selbstmedikation GmbH, Frankfurte...
Graham Morse,1 Richard Harding,1 Nicolas Blouin,2 Hannah Buerckstrummer2
Not pictured: Agnieszka Pron,1 Stephan Wieder,2 David Mueller,2 and Stephane Berny3
Material Matters, 2017, 12.3
Keywords: Absorption, Alternative energy, Catalysis, Coupling reactions, Cross couplings, Deposition, Environmental, Indicators, Industries, PAGE, Photovoltaics, Polymerization reactions, Positron Emission Tomography, Purification, Safety industry, Semiconductor, Separation, Solar cells, Solvents

Peer-Reviewed Papers


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