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Title: Thermal stability and oxidation of layer-structured rhombohedral In{sub 3}Se{sub 4} nanostructures

The thermal stability and oxidation of layer-structured rhombohedral In{sub 3}Se{sub 4} nanostructures have been investigated. In-situ synchrotron X-ray diffraction in a sealed system reveals that In{sub 3}Se{sub 4} has good thermal stability up to 900 °C. In contrast, In{sub 3}Se{sub 4} has lower thermal stability up to 550 or 200 °C when heated in an atmosphere flushed with Ar or in air, respectively. The degradation mechanism was determined to be the oxidation of In{sub 3}Se{sub 4} by O{sub 2} in the heating environment. This research demonstrates how thermal processing conditions can influence the thermal stability of In{sub 3}Se{sub 4}, suggesting that appropriate heating environment for preserving its structural integrity is required.
Authors:
; ; ;  [1] ; ;  [2] ;  [1] ;  [3]
  1. Materials Engineering, The University of Queensland, Brisbane QLD 4072 (Australia)
  2. Centre for Microscopy and Microanalysis, The University of Queensland, Brisbane QLD 4072 (Australia)
  3. (Australia)
Publication Date:
OSTI Identifier:
22253211
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 26; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; AIR; ATMOSPHERES; ENVIRONMENT; HEATING; LAYERS; NANOSTRUCTURES; OXIDATION; STABILITY; SYNCHROTRONS; TRIGONAL LATTICES; X-RAY DIFFRACTION