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ZnO nanowire was bent in a high-resolution transmission electron microscope (HRTEM). The growth process of tensile and compressive stress-induced asymmetrical ZnO quantum dots (QDs) on bent ZnO nanowire (NW) surface was observed in situ at the atomic scale. The positionally resolved atomic-level strain distribution along the radial directions was mapped directly from the atomic-level strained HRTEM...
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