Abstract
Nanoparticle-assembled vanadium dioxide (VO2) films have been easily prepared with the assistance of cetyltrimethylammonium vanadate (CTAV) precursor which exhibits self-assembly properties. The obtained VO2 film has a micro/nano hierarchical porous structure, so its visible-light transmittance is significantly improved (∼25% increased compared to continuous film). The VO2 particle density as well as the film porosity can be facilely controlled by adjusting experimental parameters such as dip-coating speed. Accordingly, film optical properties can also be tuned to a large extent, in particular the visible transmittance (Tvis) and near-infrared switching efficiency (ΔTnir). These VO 2 nanoparticle-assembled films prepared by this novel method provide a useful model to research the balance between Tvis and ΔT nir.
| Original language | English |
|---|---|
| Pages (from-to) | 1630-1635 |
| Number of pages | 6 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 5 |
| Issue number | 5 |
| DOIs | |
| State | Published - 13 Mar 2013 |
| Externally published | Yes |
Keywords
- optical controllability
- particulate film
- porous film
- self-assembly
- vanadium dioxide