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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

COMPREHENSIVE T-TYPE METHOD FOR THE THERMAL AND ELECTRICAL TRANSPORT PROPERTIES MEASUREMENT OF MICRO/NANO WIRES AND RIBBONS

Get access (open in a dialog) DOI: 10.1615/IHTC16.tpm.022617
pages 8670-8677

Sinopsis

Micro/nano wires and ribbons have large technological applications and new fundamental physical phenomena. Especially in nanoscale, the properties of nanowires and nano-ribbons may be significantly different from bulk, and the measurement method for bulk materials even cannot be applied. Development of the precise measurement method for micro/nano wires and ribbons is becoming the frontier research and has been attracting intense interest. We have developed an integrated T-type method for comprehensively measuring the thermal and electrical transport properties of micro/nano wires and ribbons. In the T-type method, the dc heating-dc detecting, 3omega-T, four probe, and ac heating-dc detecting modes are applied to measure the thermal conductivity, thermal diffusivity, heat capacity, electrical conductivity and Seebeck coefficient, respectively. Furthermore, a corresponding highly-integrated instrument based on the T-type method has been devised. In the instrument, a virtual lock-in amplifier and the instrument-control and data-acquisition system have been developed to integrate the above-mentioned methods. By applying the comprehensive T-type method and the instrument, the thermal and electrical properties can be comprehensively determined on the same sample in the same measurement configuration. By applying the developed T-type method, some typical micro/nano wires and ribbons have been studied, including ultralong double-walled carbon nanotube bundle, graphene fiber, single multiwalled carbon nanotube, and single bismuth sulfide nanowire.