Optical reflectance spectra of SiNW arrays. The black square line, red dot line, and blue up-triangle line represent the spectra of SiNW arrays decorated with AgNPs with the diameter of 19, 23, and 26 nm, respectively. The green down-triangle line represents the reflectance of bare SiNW array without AgNPs.
Liu et al. Nanoscale Research Letters 2013 8:88 doi:10.1186/1556-276X-8-88