Multilevel Spherical Photonic Crystals with Controllable Structures and Structure‐Enhanced Functionalities
| Abstract | Three‐tier spherical photonic crystals with multiscale tailorable structures are fabricated via droplet confined colloid assembly and metal film dewetting method, showing tunable optical properties of photonic stop band and surface plasmon resonance. Their dual‐tunability in optical properties achieved by the 2nd‐tier silica nanoparticle patterns and the 3rd‐tier plasmonic Au nanocrystal arrays, enables the application for constructing flexible anticounterfeiting films. |
|---|---|
| URL | |
| Authors | J. Wang, H. Le-The, L. Shui, J. G. Bomer, M. Jin, G. Zhou, P. Mulvaney, P. W. H. Pinkse, A. van den Berg, L. I. Segerink, and J. C. T. Eijkel |
| Year of publication | 2020 |
| Date published | 03/2020 |
| Journal | Adv. Optical Mater. |
| Volume | 2020 |
| Pages | 1902164: 1-11 |
| DOI number | 10.1002/adom.201902164 |
| Keywords | dewetting, droplet microfluidics, spherical photonic crystals, surface plasmon resonance |