Skip to main content
Figure 3 | Nanoscale Research Letters

Figure 3

From: The synthesis of controlled shape nanoplasmonic silver-silica structures by combining sol-gel technique and direct silver reduction

Figure 3

Raman spectrum of PEG 400-modified silica films after thermal treatment at 300°C. (a) A film prepared at a volume ratio of sol:PEG 1:0.05 (1); a film prepared at a volume ratio of sol:PEG 1:0.10 (2); a film prepared at a volume ratio of sol:PEG 1:0.15 (3); (b) a film prepared at a volume ratio of sol:PEG 1:0.10 before the deposition of silver nanoparticles showing a band of -OH vibrations responsible for the reduction of silver ions (1) and after the deposition of silver nanoparticles showing the absence of these vibrations and suggesting the complete reduction reaction (2).

Back to article page