The crystal phase and PXRD charaterization of this material has not been determined.
793353
Tungsten oxide (WO3-x) nanoparticle ink
Synonym(s):
Tungsten oxide nanoparticle dispersion, Tungsten oxide suspension, WO3 dispersion, WO3 ink, Tungsten oxide, Tungsten oxide nanoparticle
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About This Item
Linear Formula:
WO3-x
NACRES:
NA.23
UNSPSC Code:
12352103
Pricing and availability is not currently available.
form
dispersion
Quality Segment
concentration
2.5 wt. % in 2-propanol
particle size
<50 nm (BET)
density
0.7992 g/mL at 25 °C
General description
This WO3-x nanoparticle ink is for slot-dye, spin-coating and doctor blading for the use as hole transport layer in printed electronics. Tungsten oxide nanoparticle ink is a hole-selective interface layer ink based on a colloidal suspension of tungsten oxide (WO3) nanoparticles in isopropanol. The average size of WO3 particle is optimized around 12-16 nm. Tungsten oxide nanoparticle exhibits high work function, processability and easy layer formation on hydrophilic as well as hydrophobic substrates.This WO3-x nanoparticle ink is universally applicable in normal and inverted architecture solar cells.
Annealing temperature <100°C.
Annealing temperature <100°C.
Application
WO3 nanoparticle ink can be applied in OPV cells as hole extraction layer (HEL) materials. Tungsten oxide nanoparticle ink can be mixed with PEDOT:PSS formulations in order to fine tune electronic and morphological dry layer properties (e.g. conductivity, surface roughness or layer porosity).
Other Notes
Prior to application: Ultrasonicate and (optionally) filter through 0.45 μm PTFE filter
Working conditions: Application and film drying under nitrogen (or low humidity)
Post-treatment: Annealing of deposited WO3-x films at 80°C - 120°C
Working conditions: Application and film drying under nitrogen (or low humidity)
Post-treatment: Annealing of deposited WO3-x films at 80°C - 120°C
Legal Information
Product of Avantama Ltd.
1 of 1
This Item | |||
|---|---|---|---|
| particle size <50 nm (BET) | particle size 7-20 nm | particle size 7-20 nm | particle size 10-15 nm |
| form dispersion | form dispersion | form dispersion | form dispersion |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| density 0.7992 g/mL at 25 °C | density - | density - | density 0.800 g/mL at 25 °C |
| concentration 2.5 wt. % in 2-propanol | concentration - | concentration - | concentration 2.5 wt. % (crystalline ZnO in 2-propanol) |
signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
target_organs
Central nervous system
Storage Class
3 - Flammable liquids
wgk
WGK 1
flash_point_f
53.6 °F - closed cup
flash_point_c
12 °C - closed cup
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What is the crystal phase of this WO3-x? Do you have PXRD characterization results?
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How can I determine the shelf life / expiration / retest date of this product?
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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/418/501/product-dating-information-06-25-mk.pdfHelpful?
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What are the electrical conductivity properties of this ink?
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The electrical conductivity properties of this product have not been tested.
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Buongiorno Sono interessato al WO3, è in formato liquido? è possibile diluirlo in acqua ionizzata? Eventualmente avete a catalogo il WO3 in polvere?
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The product 793353 is in liquid form, containing WO3 in more than 90% of 2-propanol. While it is possible to dilute this product in ionized water, it is not recommended, as the stability of the solution may be compromised. The WO3 product in powder form refers to product 550086.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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