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Volume 114, Issue 17, 07 November 2013
Metals are known to have unique thermal, mechanical, electrical, and catalytic properties. On the other hand, metallic nanowires are promising materials for variety of applications such as transparent conductive film for photovoltaic devices, electrodes for batteries, as well as nano-reinforcement for composite materials. Whereas varieties of methods have been explored to synthesize metal nanowires with different characteristics, electrospinning has also been found to be successful for that purpose. Even though electrospinning of polymeric nanofibers is a well-established field, there are several challenges that need to be overcome to use the electrospinning technique for the fabrication of metallic nanowires. These challenges are mainly related to the multi-steps fabrication process and its relation to the structure evolution of the nanowires. In addition to reviewing the literature, this article identifies promising avenues for further research in this area with particular emphasis on the applications that nonwoven metal wires confined in a nano-scale can open.
Comment on “Optimization of power and efficiency of thermoelectric devices with asymmetric thermal contacts” [J. Appl. Phys. 111, 024509 (2012)]114(2013); http://dx.doi.org/10.1063/1.4829017View Description Hide Description
Yazawa and Shakouri [J. Appl. Phys. 111, 024509 (2012)] calculated the maximum power output of a thermoelectric power generation with asymmetric thermal contacts. However, the main results obtained are not identical with those given in textbooks, and consequently, some problems deserve some attention.