Fabrication of Bi0.5Sb1.5Te3 Thermoelectric Nanowires by Hydraulic Injection Process

碩士 === 國立交通大學 === 材料科學與工程系所 === 96 === The AAO pore diameters of 80nm and 200nm can be fabricated by the utilization of Aluminum Anodic process in H2C2O4 and H3PO4, and replace the aluminum below barrier layer with Nickel to become a template which can fabricate nanowires at high temperature. Throug...

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Bibliographic Details
Main Authors: T.W. Yang, 楊大緯
Other Authors: C.G. Chao
Format: Others
Language:zh-TW
Published: 2008
Online Access:http://ndltd.ncl.edu.tw/handle/07343079391652099666
Description
Summary:碩士 === 國立交通大學 === 材料科學與工程系所 === 96 === The AAO pore diameters of 80nm and 200nm can be fabricated by the utilization of Aluminum Anodic process in H2C2O4 and H3PO4, and replace the aluminum below barrier layer with Nickel to become a template which can fabricate nanowires at high temperature. Through the vacuum hydraulic injection process, the melted Bi0.5Sb1.5Te3 thermoelectric materials can be injected into a template and derive nanowires with diameter 80nm and 200nm.Using EDS, it is confirmed that bulk material and nanowire are stoichiometric before and after hydraulic injection process. By using TEM, it is revealed that nanowires are single crystal structure grown along the [001] direction. The crystal structure is R-3m, the same as bulk material. At last, the conductivity of nanowires is evaluated by the nano prober.