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Title: A facile synthesis of metal nanoparticle - graphene composites for better absorption of solar radiation

Herein, a facile chemical approach has been adopted to prepare silver nanoparticles (AgNPs)- graphene (G) composite to study photothermal effect. Sodium borohydride (SBH), a strong reducing agent has been selected for this work. Effect of SBH concentrations on optical behavior of AgNPs-G composite was also investigated. Resultant materials were characterized by various techniques including X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), optical absorption, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). SEM micrographs confirm wrapping of AgNPs into graphene whereas XRD analysis reveals their particle size variation between 47 nm to 69 nm. Optical studies throw a light on their strong absorption behavior towards solar radiation.
Authors:
; ;  [1]
  1. Department of Physics, Karnatak University, Dharwad, Karnataka-580 003 (India)
Publication Date:
OSTI Identifier:
22490300
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION SPECTROSCOPY; COMPOSITE MATERIALS; CONCENTRATION RATIO; FOURIER TRANSFORMATION; GRAPHENE; INFRARED SPECTRA; NANOPARTICLES; PARTICLE SIZE; REDUCING AGENTS; SCANNING ELECTRON MICROSCOPY; SILVER; SODIUM; SOLAR RADIATION; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; VISIBLE RADIATION; X-RAY DIFFRACTION