Size effect on nanomechanical properties of ZnO cones using in situ transmission electron microscopy

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• 作者：Shao-Hui Kang ; Te-Hua Fang ; Tao-Hsing Chen ; Ching-Hong Kuo
• 关键词：ZnO ; Young's modulus ; In situ TEM ; Nanocompression ; Size effect
• 刊名：Current Applied Physics
• 出版年：2013
• 出版时间：October, 2013
• 年：2013
• 卷：13
• 期：8
• 页码：1689-1696
• 全文大小：3269 K

文摘

Nanoscale fracture and strain-induced structure variation of ZnO nanocones are determined using in situ transmission electron microscopy compression experiments. For the single-crystalline nanocones with diameters of 100-300?nm, the Young's modulus is in the range of 7.7-48?GPa and the ultimate tensile strength is in the range of 2.4-4.3 % . The Young's modulus and tensile strength increase with decreasing diameter. Here, we report the nanogenerator of ZnO nanocones can be used mechanical energy to output 90?nW/mm².