Electrical behavior of electrospun heterostructured Ag–ZnO nanofibers

Dandan Lin; Hui Wu; Xiaolu Qin; Wei Pan
September 2009
Applied Physics Letters;9/14/2009, Vol. 95 Issue 11, p112104
Academic Journal
In this work, the electrical behavior of heterostructured Ag–ZnO nanofibers was studied by varying the Ag content. The electric conductivity of the hybrids follows the percolation theory and can reach as high as 115 S cm-1 due to the electron transfer highway provided by Ag phase. Typical low-voltage varistor behavior, with nonlinear coefficient of ∼10, was observed for samples with proper Ag concentration. Possible mechanism was elucidated by means of the morphology and distribution of Ag additives throughout the ZnO host.


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