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Title: Fabrication of large area plasmonic nanoparticle grating structure on silver halide based transmission electron microscope film and its application as a surface enhanced Raman spectroscopy substrate

The plasmonic responses of silver nanoparticle grating structures of different periods made on silver halide based electron microscope film are investigated. Raster scan of the conventional scanning electron microscope (SEM) is used to carry out electron beam lithography for fabricating the plasmonic nanoparticle grating (PNG) structures. Morphological characterization of the PNG structures, carried out by the SEM and the atomic force microscope, indicates that the depth of the groove decreases with a decrease in the grating period. Elemental characterization performed by the energy dispersive spectroscopy and the x-ray diffraction shows the presence of nanoparticles of silver in the PNG grating. The optical characterization of the gratings shows that the localized surface plasmon resonance peak shifts from 366 to 378 nm and broadens with a decrease in grating period from 10 to 2.5 μm. The surface enhanced Raman spectroscopy of the Rhodamine-6G dye coated PNG structure shows the maximum enhancement by two orders of magnitude in comparison to the randomly distributed silver nanoparticles having similar size and shape as the PNG structure.
Authors:
; ; ; ; ;  [1] ;  [2] ;  [3]
  1. Indus Synchrotrons Utilization Division, Raja Ramanna Centre for Advanced Technology Indore, Madhya Pradesh 452013 (India)
  2. Laser Material Development and Device Division, Raja Ramanna Centre for Advanced Technology Indore, Madhya Pradesh 452013 (India)
  3. Mechanical and Optical Support Section, Raja Ramanna Centre for Advanced Technology Indore, Madhya Pradesh 452013 (India)
Publication Date:
OSTI Identifier:
22494727
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRON BEAMS; FABRICATION; FILMS; GRATINGS; NANOPARTICLES; PLASMONS; RAMAN SPECTROSCOPY; RESONANCE; SCANNING ELECTRON MICROSCOPY; SILVER; SILVER HALIDES; SURFACES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION