Title :
Delivering nanoparticles and molecules to the same spot with a superhydrophobic bulls-eye for surface-enhanced Raman scattering
Author :
Wuzhou Song ; Psaltis, Demetri ; Crozier, Kenneth
Author_Institution :
Sch. of Eng. & Appl. Sci., Harvard Univ., Cambridge, MA, USA
Abstract :
We present a superhydrophobic silicon bulls-eye. Water droplets remain centered as they dry, enabling delivery of nanoparticles or molecules to the center. SERS spectra of molecules (R6G) at very low concentrations (10-15 M) are demonstrated.
Keywords :
drops; elemental semiconductors; nanoparticles; nanophotonics; silicon; surface enhanced Raman scattering; water; Si; molecules; nanoparticles; superhydrophobic silicon bulls-eye; surface-enhanced Raman scattering; water droplets; Aggregates; Educational institutions; Gold; Nanoparticles; Raman scattering; Substrates; Surface treatment;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
