Surface plasmon-mediated chemical deposition and plasmonic structures
View Patent ↗Embodiments of the present disclosure provide plasmonic structures, methods of making plasmonic structures, and the like.
1. A method of forming a hybrid plasmonic structure, comprising:
exposing a plasmonic substrate to a precursor material;
irradiating the plasmonic substrate and the precursor material with a light energy; and
forming metal nanoparticles on the surface of the plasmonic substrate to form the hybrid plasmonic structure, wherein the metal nanoparticle is about 1 to 20 nm in diameter, wherein the metal nanoparticle is not gold nanoparticles, wherein the plasmonic substrate is selected from the group consisting of: CuFON, Cu nanobowl, Cu pyramid, AlFON, Al nanobowl, Al pyramid, and Ag pyramid.
2. The method of claim 1 , wherein the metal nanoparticle is selected from the group consisting of: a Pt nanoparticle, a Pd nanoparticle, a Fe nanoparticle, a Ti nanoparticle, and a combination thereof.
3. The method of claim 1 , wherein irradiating includes irradiating with visible light.
4. The method of claim 3 , wherein the power density of the visible light is about 1.6 W/cm 2 to 2.8 W/cm 2 .
5. The method of claim 1 , wherein the duration of irradiation is about 1 to 5 minutes.
6. The method of claim 5 , wherein irradiating is performed to form a nanoparticle film on the surface of the plasmonic substrate.
7. The method of claim 6 , wherein the nanoparticle film has a thickness of about 20 to 80 nm.
8. The method of claim 1 , wherein the metal nanoparticle is a Cu nanoparticle.
9. A composition comprising:
a plasmonic structure including a plasmonic substrate having nanoparticles disposed on the surface of the plasmonic substrate, wherein the nanoparticle is about 1 to 20 nm in diameter, wherein the nanoparticle is not gold nanoparticles, wherein the plasmonic substrate is selected from the group consisting of: CuFON, Cu nanobowl, Cu pyramid, AlFON, Al nanobowl, Al pyramid, and Ag pyramid.
10. The composition of claim 9 , wherein the nanoparticle is a metal nanoparticle.
11. The composition of claim 9 , further comprising a probe attached to the nanoparticle by a carboxylic acid moiety.
12. The composition of claim 11 , wherein the probe is a Raman probe molecule.
13. The composition of claim 9 , wherein the metal nanoparticle is a Cu nanoparticle.