Tungsten oxide (WO3-x) nanoparticle ink
ALDRICH/793353
Synonym: Avantama P-10; Nanograde P-10; Tungsten oxide nanoparticle dispersion; Tungsten oxide suspension; WO3 dispersion; WO3 ink
Linear Formula: WO3-x
Product Type: Chemical
| concentration | 2.5 wt. % in 2-propanol |
| density | 0.7992 g/mL at 25 °C |
| form | dispersion |
| particle size | <50 nm (BET) |
| Quality Level | 100 ![]() |
| 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). |
| 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. |
| Legal Information: | Product of Avantama Ltd. |
| 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 |
| Symbol | ![]() GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225 - H319 - H336 |
| Precautionary statements | P210 - P305 + P351 + P338 |
| Hazard Codes | F,Xi |
| Risk Statements | 11-36-67 |
| Safety Statements | 16-26 |
| RIDADR | UN1219 - class 3 - PG 2 - Isopropanol, solution |
| WGK Germany | WGK 1 |
| Flash Point(F) | 53.6 °F - closed cup |
| Flash Point(C) | 12 °C - closed cup |
| Density | 0.7992 g/mL at 25 °C |
| UNSPSC | 12352103 |



