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900181 Sigma-Aldrich


high-conductivity grade

Synonym: 1% Pedot/PSS, Orgacon S315



Related Categories π-Conjugated Polymers, 3D Printing Materials for Research and Development, Bioelectronics, Biosensing and Bioimaging, Conductive Polymers,
Quality Level   100
grade   high-conductivity grade
description   Visual Light Transmission (VLT): ≥ 80%
form   dispersion
concentration   0.5-1 wt. % (PEDOT: PSS in water)
sheet resistance   <200 Ω/sq (coating : 40μ wet, drying: 6 min 130°C)
pH range   2 - 3.5
viscosity   ≤70 mPa.s(20 °C)
storage temp.   2-8°C


General description

High-conductivity grade.

Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) is a conductive polymer that is formed by electropolymerizing 3,4-ethylenedioxythiophene in a solution of poly(styrenesulfonate) (PSS). PEDOT is doped with positive ions and PSS with negative ions. It is mainly used in organic electronics due to the properties, which include
• low band gap
• good optical properties
• high conductivity
• low redox potential
• easy processing
• tunable film forming ability


Orgacon S315 is ready-to-use and made with conductive polymer PEDOT:PSS. Typical application processes are slot die, Meyer bar and gravure coating. It is particularly designed for optimal properties on PET and meet the requirements of several transparent electrodes applications as alternative to ITO.

• ITO substitution coating.
• ITO-free OPV.

• Surface electrical resistance (SER) at 90% VLT* (visual light transmission): 125 Ω/square.
*Typical properties on PET with bar coater. Thermal cured at 130 °C/ 6 min. VLT according to ASTM D 1003, excludes substrate.
• Stability ratio R/R_0 (500 hr at 60 °C, 95% RH) : 1.3.

PEDOT:PSS can be used as an electrode material with high mobility for charge carriers. It can be used for a wide range of energy based applications such as organic photovoltaics (OPV), dye sensitized solar cells (DSSCs), organic light emitting diodes (OLEDs), supercapacitors and biomedical sensors.


100 g in Sure/Seal™

Preparation Note

• Dilute with DI water or compatible solvent if needed.
• Pre-treated substrate with corona- or plasma treatment increase adhesion.

Other Notes

• These additives have low water content (less than 100 ppm).
• Please handle under inert and moisture free environment (glove box).
• Keep containers tightly closed.
• Keep away from heat and ignition sources.
• Store in a cool and dry place.
• Avoid storing together with oxidizers.

Legal Information

Orgacon is a trademark of Agfa-Gevaert N.V.

Safety & Documentation

Safety Information

GHS07  GHS07
Signal word 
Hazard statements 
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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