In situ x-ray diffraction study of the size dependent thermal expansion of silver nanowires

The thermal expansion of as-prepared and annealed silver nanowires embedded in anodic alumina membranes with different diameters was studied by in situ x-ray diffraction in the temperature range from 25to800°C. For both the as-prepared and annealed samples, the coefficients of thermal expansion have...

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Bibliographic Details
Published in:Applied physics letters 2006-10, Vol.89 (18)
Main Authors: Xu, Xi Jin, Fei, Guang Tao, Yu, Wen Hui, Zhang, Li De, Ju, Xin, Hao, Xiao Peng, Wang, Dan Ni, Wang, Bao Yi
Format: Article
Language:English
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Summary:The thermal expansion of as-prepared and annealed silver nanowires embedded in anodic alumina membranes with different diameters was studied by in situ x-ray diffraction in the temperature range from 25to800°C. For both the as-prepared and annealed samples, the coefficients of thermal expansion have “V” shape change as the diameters increase; and the minimum values of the coefficients of thermal expansion do not correspond to the same diameters of nanowires. The collective effects of the surface tension, the limit effects of anodic alumina membrane, and the vacancies incorporated into the silver lattice were responsible for the thermal expansion.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2364177