Surface enhanced Raman scattering (SERS) of silver ions embedded nanocomposite glass.
Silver nanocomposites (Ag-NCs) glasses are formed by the ion exchange technique of dipping the host matrix in the molten metal salt bath. These ions exchanged glasses are then annealed at different temperatures in air for one hour. They exhibit striking linear and nonlinear optical properties with potential applications in the field of photonics materials. The optical absorption spectra of Ag ion exchanged and annealed glasses confirm the presence of the nano sized metal (Ag) cluster embedded inside the glass matrix. The size and morphology of the embedded silver nanoclusters are studied from their surface plasmon resonance (SPR) and surface enhanced Raman spectroscopy (SERS). Post Ag ion exchange made some structural changes in the soda lime glass which can be observed from Raman spectroscopy. It is observed that diffusion process lead to depolymerization of the glass network as it determined by analyzing the various peaks of SERS spectra. Significant enhancement in the Raman signal by these Ag-NCs, prove them as effective SERS substrates.
Research & Development Centre, Bharathiar University, Coimbatore 641046, India; Department of Physics, Krishnasamy College of Engg & Tech., Cuddalore 607109, India.
Pitchamuthu
P
Manikandan
Department of Physics, Arignar Anna Govt Arts College, Villupuram 605602, India. Electronic address: a_dmani@yahoo.com.
Durgachalam
D
Manikandan
Nano Research Centre, Department of Physics, B.S. Abdur Rahman University, Chennai 600048, India. Electronic address: maniphysics@gmail.com.
Elayaperumal
E
Manikandan
Department of Physics, St. Josephs College of Arts & Science, Cuddalore 607001, India.
Arumainathan Christy
AC
Ferdinand
D017610:Calcium Compounds / Q000737:chemistry; D005898:Glass / Q000737:chemistry*; D007477:Ions; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D055620:Optical Phenomena; D010087:Oxides / Q000737:chemistry; D012834:Silver / Q000737:chemistry*; D013052:Spectrometry, X-Ray Emission; D013056:Spectrophotometry, Ultraviolet; D013059:Spectrum Analysis, Raman; D020349:Surface Plasmon Resonance
D017610:Calcium Compounds; D007477:Ions; D010087:Oxides; D012834:Silver; C016538:lime
Ag-nanoclusters; Ion exchanged; Soda-lime glass; UV–Visble and Raman spectroscopy