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Sigma-Aldrich

PEDOT:PSS

low-conductivity grade, 2.7 wt. % aqueous dispersion

Synonyme(s) :

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

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About This Item

Numéro MDL:
Code UNSPSC :
12352103
Nomenclature NACRES :
NA.23

product name

Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate), 2.7 wt % dispersion in H2O, low-conductivity grade

Qualité

low-conductivity grade

Niveau de qualité

Composition

PEDOT content, ~0.14%
PSS content, ~2.6%

Concentration

2.7 wt % dispersion in H2O

Impuretés

<300 ppm Na

Taille des particules

<200 nm, coeff var >95%

pH

1.2-1.8

Conductivité

~1E-5 S/cm

Viscosité

<20 cP(20 °C)

Température de stockage

2-8°C

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Description générale

A conducting polymer such as poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate) anions (PEDOT/PSS) is widely used in various organic optoelectronic devices. PEDOT: PSS is a blend of cationic polythiopene derivative, doped with a polyanion. High electrical conductivity and good oxidation resistance of such polymers make it suitable for electromagnetic shielding and noise suppression. Thus, the polymer film was found to possess high transparency throughout the visible light spectrum and even into near IR and near UV regions, virtually 100% absorption from 900-2,000 nm. No absorption maximum from 400-800 nm. Conductive polymer blend. Impact of small electric and magnetic fields on the polymer was studied.
Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) is an intrinsically conducting polymer (ICP) that is prepared by blending poly(3,4-ethylenedioxythiophene) (PEDOT) and sodium poly(styrenesulfonate) (PSS). It is an aqueous emulsion in which PEDOT is positively charged and the PSS is the counter ion (negatively charged). It can act as an anode or a cathode material based on the application. It can be spin-coated on different substrates at 1000-5000 rpm.
Preferably applied by spin-coating. Filtration of the dispersion through a 0.45 μm memberane filter is recommended before use. The coatings are dried at a maximum temperature of 200 °C for 1 minute, but a temperature between 50 °C and 150 °C is usually sufficient. The optimal thickness of the dried layer is in the range of 50-250 nm.

Application

PEDOT:PSS and poly(9-vinylcarbazole) (PVK) can be cross-linked to form a multi-layered organic light emitting diodes. Proton exchange membranes such as Nafion 212 can be coated layer by layer with PEDOT:PSS and poly(allylamine hydrochloride) (PAH).
Useful as an interfacial hole injection layer in OLED and PLED devices to lower operating voltages, increase luminescence efficiency, and enhance display lifetimes.
Virtually 100% absorption from 900-2,000 nm. No absorption maximum from 400-800 nm. Conductive polymer blend.

Caractéristiques et avantages

Reduced mean particle size with a tighter distribution of sizes allows for the creation of a smooth surface on the ITO electrode, and so electric "shorts" in LED devices can be reduced. Greatly reduced inherent conductivity reduces the occurrence of "cross-talk" in very small pixel (less than 10 micron) matrix array displays.

Conditionnement

Packaged in poly bottles

Pictogrammes

Corrosion

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Eye Dam. 1 - Skin Corr. 1

Code de la classe de stockage

8B - Non-combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Consulter la Bibliothèque de documents

Conducting polymer electrodes for gel electrophoresis
Bengtsson K, et al.
PLoS ONE, 9(2), e89416-e89416 (2014)
PEDOT: PSS self-assembled films to methanol crossover reduction in Nafion membranes
Almeida TP, et al.
Applied Surface Science, 323(3) (2014)
Advanced Materials, 10, 774-774 null
Surface initiated oxidative crosslinking of a polymeric hole transport material for improved efficiency and lifetime in soluble organic light-emitting diodes
Jeon SK, et al.
Organic Electronics, 38(3) (2016)
Opt. Mater., 9, 125-125 (1998)

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