Synthesis and characterization of Ni/Ag nanocomposite for surface enhanced Raman scattering measurement. (5th June 2015)

• Record Type: Journal Article
• Authors: Manoj, K; Gayathri, S; Jayabal, P; Ramakrishnan, V
• Is Part Of: Materials research express. Volume 2:Number 6(2015)
• Publication Date: 2015-06-05
• Subjects: Ni/Ag nanocomposite -- Raman spectroscopy -- SERS -- methylene blue; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/2/6/065003
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: Ni nanoflowers were successfully synthesized by wet chemical method using hydrazine hydrate as reducing agent. Ni/Ag nanocomposite was prepared by simple redox-transmetalation reaction by using the synthesized Ni nanoflowers and silver nitrate as precursors. The x-ray diffraction pattern revealed the formation of face centered cubic crystal structured Ni nanostructure and Ni/Ag nanocomposite. Scanning electron micrograph was used to study the surface morphology of Ni nanoflowers and Ni/Ag nanocomposite. The energy dispersive x-ray spectrometry analysis showed the purity of the prepared samples. The synthesized Ni/Ag nanocomposite was made into film and used as surface enhanced Raman scattering (SERS) substrate for probing the SERS signal of methylene blue molecule. The Ni/Ag nanocomposite showed significantly stronger Raman signal than the bare glass substrate.