Mechanical characteristics of copper indium gallium diselenide compound nanopillars using in situ transmission electron microscopy compression
Scripta Materialia(2015)
Abstract
The critical-stress and strain-induced structural variations of the copper indium gallium diselenide (CIGS) compound nanopillars were estimated using in situ transmission electron microscopy (TEM) compression experiments. The Young’s modulus values of nanopillars with diameters of 200–400nm were 29–75GPa. The nanopillars exhibited the superelasticity effect at diameters of 90 and 150nm. The plastic deformation energy and the elastic deformation energy values were 0.04–0.13×10−12J and 0.05–5.41×10−12J, respectively, for nanopillars with diameters of 200–400nm.
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Key words
Alloys,Mechanical properties,Elastic properties,Hardness testing,Transmission electron microscopy (TEM)
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