Ji Qi, Pratik Motwani, Mufaddal Gheewala, Christopher Brennan, John C. Wolfe and Wei-Chuan Shih
Nanoscale, 2013,5, 4105-4109
DOI:
10.1039/C2NR33242F,
Communication
Monolithic hierarchical nanoporous gold disks, 500 nm in diameter, 75 nm in thickness and 3.5 nm in pore radius, have been fabricated by hybrid processes. A surface-enhanced Raman scattering enhancement factor of at least 108 has been obtained on individual disks using