Magnetically Tunable Plasmon Coupling of Gold Nanoshells

Background

Materials with strong localized surface plasmon resonance (LSPR) can find unique applications in wearable electronics, smart windows, color holograms, flexible displays, etc. Efficient scattering of light at a particular wavelength while being "transparent" at off-resonance is key to the effectiveness of these applications.

Brief Description

Prof. Yadong Yin and colleagues from the University of California, Riverside have developed a novel growth process that allows for the creation of high-quality Au nanoshells on relatively small magnetic Fe3O4 cores (20–150 nm) with excellent plasmonic properties. The nanoscale magnetic assembly strategy allows for active tuning of the plasmon coupling of nanostructures

 Fig 1: The UV–vis spectra of the UCR nanoshells with different core diameters.

Advantages

• Instantaneous response 
• Chemical-free remote control
• Full reversibility
• Robust and flexible synthesis process
• Transparent
  

Application

For use in a variety of electronic applications, including flexible transparent displays, optical metasurfaces, smart windows, wearable electronics, color holograms, and anti-counterfeiting devices.

Patent Status

Related Materials

• Nano Lett. 2020, 20, 11, 8242–8249 Publication Date: October 15, 2020 - 10/15/2020