Figure 1From: Silica nanoparticles as a tool for fluorescence collection efficiency enhancementScanning electron microscopy image and optical spectra of the silica nanoparticles. (a) Scanning electron microscopy image of the silica nanoparticles with a diameter of 1,100 nm. (b) Optical spectra of silica nanoparticles with diameters of 600 nm (dash-dot) and 1,100 nm (dash) compared to absorption spectrum of the PCP complex solution (solid) as well as its fluorescence (dot).Back to article page