560596

PEDOT:PSS

low-conductivity grade, 2.7 wt. % aqueous dispersion

• Synonyme(s) : PEDOT:PSS, Poly(2,3-dihydrothieno-1,4-dioxin)-poly(styrenesulfonate)
• Numéro MDL: MFCD07371079
• Code UNSPSC : 12352103
• Nomenclature NACRES : NA.23

Propriétés

• Nom du produit: Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate), 2.7 wt % dispersion in H₂O
• Composition: PEDOT content, ~0.14% ; PSS content, ~2.6%
• Niveau de qualité: 100
• 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

Description

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.[1] 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.[2][3] Impact of small electric and magnetic fields on the polymer was studied.[4]

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.[5][6][7]

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.[8] Proton exchange membranes such as Nafion 212 can be coated layer by layer with PEDOT:PSS and poly(allylamine hydrochloride) (PAH).[9]

Useful as an interfacial hole injection layer in OLED and PLED devices to lower operating voltages, increase luminescence efficiency, and enhance display lifetimes.[10][11][12][13]

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

Informations sur la sécurité

• Pictogrammes: GHS05
• Mention d'avertissement: Danger
• Mentions de danger: H314
• Conseils de prudence: P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363 - P405
• 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