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655201

Sigma-Aldrich

PEDOT:PSS

greener alternative

high-conductivity grade, 3.0-4.0% aqueous dispersion

Synonym(s):

PEDOT:PSS, Poly(2,3-dihydrothieno-1,4-dioxin)-poly(styrenesulfonate)

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5 G
£54.10
25 G
£216.00

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5 G
£54.10
25 G
£216.00

About This Item

MDL number:
MFCD07371079
UNSPSC Code:
12352103
NACRES:
NA.23

£54.10

Please contact Customer Service for Availability
Request a Bulk Order

Product Name

Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate), 3.0-4.0% in H2O, high-conductivity grade

grade

high-conductivity grade

Quality Level

100

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

concentration

3.0-4.0% in H2O

resistance

1500 Ω/sq, 4 point probe measurement of dried coating based on initial 6μm wet thickness.
 500 Ω/sq, 4 point probe measurement of dried coating based on initial 18μm wet thickness.

pH

1.5-2.5 (25 °C, dried coatings)

conductivity

>200 S/cm

viscosity

10-30 cP(20 °C)

density

1.011 g/cm3 (dried coatings)

greener alternative category

Enabling,

storage temp.

2-8°C

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General description

Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) is an organic semiconductor prepared by doping cationic poly(3,4-ethylenedioxythiophene) and poly(4-styrenesulfonate) anion. Its high electrical conductivity and good oxidation resistance make it suitable for electromagnetic shielding and noise suppression. PEDOT:PSS based polymeric films have a high transparency throughout the visible light spectrum and even in near IR and near UV regions, with virtually 100% absorption from 900-2000 nm.[1] PEDOT provides the conduction properties and PSS forms a hydrated colloidal solution.[2]
We are committed to bringing you Greener Alternative Products, which adhere to one or more of the 12 Principles of Green Chemistry. This product is used in energy conversion and storage, thus has been enhanced for energy efficiency. Click here for more information.

Application

Electrical conductivity measurements herewith reported were on a film deposited by spin-coating on a clean glass, then dried (130 °C for 15 minutes on a hotplate). The layer thickness was determined by scratching the layer and measuring the profile/height of the scratch by a stylus profilometer. Electrodes for the measurement were by evaporating metal contacts (four-point probes).
PEDOT:PSS is an intrinsically conductive polymer (ICP) that can be coated on various substrates and nanostructures like fullerenes (C60) to form composites with high electrochemical properties for applications like low-cost printed electronics, optoelectronics, and polymeric solar cells. It can be used as a conductive hydrogel with polyethylene glycol-diacrylate (PEG-DA) for potential applications in tissue engineering. PEDOT:PSS also finds use in other organic electronic applications like organic thin film transistors (OTFTs) and dye sensitized solar cells (DSSCs).[2][3][4][5][6][7]
Ready-to-use high conductivity coating formulation.
Virtually 100% absorption from 900-2,000 nm. No absorption maximum from 400-800 nm. Conductive polymer blend.

Packaging

Packaged in poly bottles

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SDBB2202
STBL4165
MKCV8418
MKCW2792
STBL2191

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Dye sensitized solar cells (DSSCs) based on modified iron phthalocyanine nanostructured TiO2 electrode and PEDOT: PSS counter electrode.
Balraju P, et al.
Synthetic Metals, 159(13), 1325-1331 (2009)
Mechanically robust, photopatternable conductive hydrogel composites.
Pal R, et al.
Reactive and Functional Polymers, 120(5), 66-73 (2017)
Fine patterning of glycerol-doped PEDOT: PSS on hydrophobic PVP dielectric with ink jet for source and drain electrode of OTFTs
Lee M, et al.
Organic Electronics, 11(5}, 854-859 (2010)
New Conducting and Semiconducting Polymers for Organic Photovoltaics.
Sapp S and Luebben S
MRS Online Proceedings Library, 1270(4), 261-266 (2010)
The Influence of PEDOT to PSS Ratio on the Optical Properties of PEDOT: PSS Thin Solid Films-Insight from Spectroscopic Ellipsometry.
Bednarski H, et al.
Acta Physica Polonica A, 130(5), 1242-1244 (2016)
View All Related Papers

Articles

New Conducting and Semiconducting Polymers for Plastic Electronics

In the field of organic printable electronics, such as OLEDs and organic photovoltaics (OPVs), improved organic conducting and semiconducting materials are needed. The progress in two fields is reviewed in this article.

Conductive Polymers for Advanced Micro- and Nano-fabrication Processes

Conducting polymers such as polyaniline, polythiophene and polyfluorenes are now much in the spotlight for their applications in organic electronics and optoelectronics.

Self healable PEDOT based film hydrogel and OECT devices

Advancements in bioelectronics, incorporating self-healing materials for wearable devices, and measuring bioelectric signals to assess physiological parameters.

Flexible and Printed Organic Thermoelectrics: Opportunities and Challenges

Progress in Organic Thermoelectric Materials & Devices including high ZT values of >0.2 at room temperature by p-type (PEDOT:PSS) & n-type (Poly[Kx(Ni-ett)]) materials are discussed.

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Questions

1–10 of 17 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. Which form is it in, powder/solid or liquid? As it is unclear because the pack size is in gms not mL.

    1 answer

    1. This product is offered as a 3.0-4.0% (w/v) solution in water. The concentration is lot-specific and reported on the Certificate of Analysis. The volume of the item will change from lot to lot, based on the concentration. Please see the link below to review a sample or lot-specific Certificate:
      https://www.sigmaaldrich.com/product/aldrich/655201#product-documentation

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  4. What temperature should be used to bake the coated PEDOT:PSS film when using product no. 655201 for spin-coating?

    1 answer

    1. The recommended starting temperature for drying a PEDOT:PSS F ET layer is 120°C, achievable either in a convection oven or on a hotplate.

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  5. Is the PEDOT photosensitve?

    1 answer

    1. This product is not listed as light sensitive. However, the material is sensitive to frost and should not be stored below 5°C.

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  6. what is the color of the chemical? last time I bought it and freezed directly and it it became blue so I couldn't see the initial color.

    1 answer

    1. The appearance of this product is a dark blue liquid. The storage temperature for the solution is 2-8°C, there is no need to store frozen.

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  7. After spin coating and annealing at 130 °C for 15 minutes on a hotplate, is resulting PEDOT/PSS layer water soluble?

    1 answer

    1. PEDOT: PSS films are not water resistant unless some form of crosslinking is done. The supplier datasheet does indicate the following:
      'After opening, the containers must be well closed to prevent the evaporation of water, which may result in the formation of a non-re-dispersible film.'
      This suggests that the film may be considered non-re-dispersible but not necessarily water resistant.

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  8. I want to ask this PEDOT:PSS whether can mix with photocurable resin or not. If can I need to put some dispersion solvents? Thanks for you answering~

    1 answer

    1. The specific components and the concentration of photocurable resin may affect the performance of this product upon mixing. The end user would have to determine solubility and stability experimentally for use with any dispersant.

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  9. For product 655201, Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate), what is the relationship between film thickness and spin coating speed?

    1 answer

    1. Please consult https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/655/738/655201-spin-curve.pdf, showing the spin coating curve for product 655201, Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate).

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  10. What is the temperature stability of this poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate), PEDOT:PSS, product?

    1 answer

    1. Deposited poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate), PEDOT:PSS, films can easily withstand temperatures in excess of 200°C for short duration and around 70°C in continuous service.  The aqueous dispersions of PEDOT:PSS, however, can be damaged by heating above 50°C for a prolonged period.

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1–10 of 17 Questions  

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