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Plasmonic Control and Stabilization of Asymmetric Light Scattering from Ag Nanocubes on TiO2
- Source :
- ACS Applied Materials & Interfaces. 9:11064-11072
- Publication Year :
- 2017
- Publisher :
- American Chemical Society (ACS), 2017.
-
Abstract
- When plasmonic nanoparticles are placed on a highly refractive semiconductor substrate, we can expect three different effects: (i) resonance mode splitting, (ii) asymmetric light scattering based on the split modes, and (iii) site-selective nanoetching due to plasmon-induced charge separation (PICS) at the nanoparticle–semiconductor interface. Here, we develop novel photofunctional materials by taking advantage of those three effects. More specifically, we control the asymmetric scattering of Ag nanocubes on TiO2 by PICS, so as to develop materials for photodrawing of one-way visible translucent images and multicolor scattering images. The one-way visible translucent images, which are translucent scattering images visible only from the back side, are drawn by anaerobic bottom-selective etching of the Ag nanocubes. For drawing the multicolor scattering images, a scattering color of Ag nanocubes is changed from yellow to green by the anaerobic bottom-selective etching and from yellow to red by aerobic nonse...
- Subjects :
- Plasmonic nanoparticles
Materials science
Scattering
business.industry
Charge separation
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Resonance (particle physics)
Light scattering
0104 chemical sciences
Optics
Etching (microfabrication)
General Materials Science
0210 nano-technology
business
Plasmon
Subjects
Details
- ISSN :
- 19448252 and 19448244
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- ACS Applied Materials & Interfaces
- Accession number :
- edsair.doi...........0d26b0d1477a53ed80f8b77bfcd92778
- Full Text :
- https://doi.org/10.1021/acsami.7b01457