Thermoelectric property of vertically aligned carbon nanotube carpets
Date Issued
2014
Date
2014
Author(s)
Liao, Yang-Lin
Abstract
Thermoelectric material need to have high electrical conductivity, low thermal conductivity and high Seebeck coefficient. Carbon nanotubes have very excellent electrical properties, mechanical properties and thermal property. Compared to conventional thermoelectric materials, convenient and inexpensive preparation of carbon nanotubes. In the micro-scale, the thermal conductivity of carbon nanotubes is great, but the increase in the number of carbon nanotubes will drop dramatically. Recently, many studies have used carbon nanotubes to control the heat transfer of electronic components. Some of thermoelectric materials add to increase the
thermoelectric property of carbon nanotubes.
In this study, the growth of vertically aligned carbon nanotubes using chemical deposition method. Explore the basis of thermoelectric properties of carbon nanotubes from macro. From the experimental results showed that fewer layers of iron-filled carbon nanotubes have the better thermoelectric property. The Seebeck coefficient of single layer iron-filled carbon nanotube forest is -65 at , which is 2 times of carbon nanotube forest. Vapor deposition was used to deposit bismuth (III) telluride and antimony (III) telluride onto carbon nanotube forest. The thermoelectric properties were improved by increasing the Seebeck coefficient values. At , the Seebeck coefficient of the single layer iron-filled carbon nanotube forest increased 2.67 times.
Subjects
垂直陣列奈米碳管叢
熱電性質
賽貝克係數
熱傳導係數
Type
thesis
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