skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Microstructure and optical properties of CdI{sub 2} doped silver vanadate glass-nanocomposites

Abstract

Graphical abstract: TEM micrograph for 0.20CdI{sub 2}–0.80(0.60Ag{sub 2}O–0.40V{sub 2}O{sub 5}) and SAED pattern (shown right inset) from the selected area. High resolution image for a particle along with its FFT pattern is also shown in left inset. Highlights: ► CdI{sub 2} doped silver vanadate glass nanocomposites have been prepared. ► Microstructure of the compositions has been investigated. ► Nanocrystalline phases (β-AgI, Cd{sub 2}V{sub 2}O{sub 7}, etc.) are distributed in the glass matrix. ► Volume fraction of these crystalline phases increases with increase of CdI{sub 2} content. ► Formation of Cd{sub 2}V{sub 2}O{sub 7} and β-AgI phase confirms the Cd–Ag exchange in the samples. -- Abstract: Microstructure and optical properties of glass-nanocomposites of compositions xCdI{sub 2}–(1 − x)(0.60Ag{sub 2}O–0.40V{sub 2}O{sub 5})(x = 0.0–0.20) have been reported in this paper. X-ray diffraction patterns show the amorphous nature for the compositions x = 0 and 0.05. However, nanocrystalline phases have been observed in these compositions in electron microscopic studies. X-ray diffraction and electron microscopic studies reveal formation of different nanocrystalline phases such as β-AgI, Cd{sub 2}V{sub 2}O{sub 7}, Ag{sub 4}V{sub 2}O{sub 7} distributed within the amorphous matrix for the compositions x = 0.05–0.20. The presence of Cd{sub 2}V{sub 2}O{sub 7} and β-AgI phasemore » for x = 0.05–0.20 confirms the exchange of coordination between Cd and Ag in these samples. The crystalline volume fraction increases with the increase of CdI{sub 2} content in these compositions. The average size of the nanocrystalline phases was estimated from the transmission and scanning electron microscopic studies. The network structure of the glass nanocomposites has been studied using Fourier transform infrared spectroscopy. Differential scanning calorimetric results show that the embedded nanocrystals decrease the glass transition temperature.« less

Authors:
 [1];  [1]
  1. Department of Solid State Physics, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032 (India)
Publication Date:
OSTI Identifier:
22215552
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION SPECTROSCOPY; CADMIUM IODIDES; CALORIMETRY; COMPOSITE MATERIALS; CRYSTALS; DOPED MATERIALS; FOURIER TRANSFORM SPECTROMETERS; GLASS; INFRARED SPECTRA; MICROSTRUCTURE; NANOSTRUCTURES; OPTICAL PROPERTIES; SCANNING ELECTRON MICROSCOPY; SILVER; TRANSITION TEMPERATURE; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Kabi, S., and Ghosh, A., E-mail: sspag@iacs.res.in. Microstructure and optical properties of CdI{sub 2} doped silver vanadate glass-nanocomposites. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.08.016.
Kabi, S., & Ghosh, A., E-mail: sspag@iacs.res.in. Microstructure and optical properties of CdI{sub 2} doped silver vanadate glass-nanocomposites. United States. doi:10.1016/J.MATERRESBULL.2012.08.016.
Kabi, S., and Ghosh, A., E-mail: sspag@iacs.res.in. Thu . "Microstructure and optical properties of CdI{sub 2} doped silver vanadate glass-nanocomposites". United States. doi:10.1016/J.MATERRESBULL.2012.08.016.
@article{osti_22215552,
title = {Microstructure and optical properties of CdI{sub 2} doped silver vanadate glass-nanocomposites},
author = {Kabi, S. and Ghosh, A., E-mail: sspag@iacs.res.in},
abstractNote = {Graphical abstract: TEM micrograph for 0.20CdI{sub 2}–0.80(0.60Ag{sub 2}O–0.40V{sub 2}O{sub 5}) and SAED pattern (shown right inset) from the selected area. High resolution image for a particle along with its FFT pattern is also shown in left inset. Highlights: ► CdI{sub 2} doped silver vanadate glass nanocomposites have been prepared. ► Microstructure of the compositions has been investigated. ► Nanocrystalline phases (β-AgI, Cd{sub 2}V{sub 2}O{sub 7}, etc.) are distributed in the glass matrix. ► Volume fraction of these crystalline phases increases with increase of CdI{sub 2} content. ► Formation of Cd{sub 2}V{sub 2}O{sub 7} and β-AgI phase confirms the Cd–Ag exchange in the samples. -- Abstract: Microstructure and optical properties of glass-nanocomposites of compositions xCdI{sub 2}–(1 − x)(0.60Ag{sub 2}O–0.40V{sub 2}O{sub 5})(x = 0.0–0.20) have been reported in this paper. X-ray diffraction patterns show the amorphous nature for the compositions x = 0 and 0.05. However, nanocrystalline phases have been observed in these compositions in electron microscopic studies. X-ray diffraction and electron microscopic studies reveal formation of different nanocrystalline phases such as β-AgI, Cd{sub 2}V{sub 2}O{sub 7}, Ag{sub 4}V{sub 2}O{sub 7} distributed within the amorphous matrix for the compositions x = 0.05–0.20. The presence of Cd{sub 2}V{sub 2}O{sub 7} and β-AgI phase for x = 0.05–0.20 confirms the exchange of coordination between Cd and Ag in these samples. The crystalline volume fraction increases with the increase of CdI{sub 2} content in these compositions. The average size of the nanocrystalline phases was estimated from the transmission and scanning electron microscopic studies. The network structure of the glass nanocomposites has been studied using Fourier transform infrared spectroscopy. Differential scanning calorimetric results show that the embedded nanocrystals decrease the glass transition temperature.},
doi = {10.1016/J.MATERRESBULL.2012.08.016},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}