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    Please use this identifier to cite or link to this item: http://nccur.lib.nccu.edu.tw/handle/140.119/119756


    Title: 利用半導體製程及射頻濺鍍製備128對碲化鉍-碲化銻薄膜熱電元件
    Fabrication of 128 Pairs Bi-Sb-Te Based Thin Film Thermoelectric Generator by Lithography and RF Sputtering Deposition
    Authors: 范文軒
    Fan, Wen-Hsuan
    Contributors: 陳洋元
    Chen, Yang-Yuan
    范文軒
    Fan, Wen-Hsuan
    Keywords: 薄膜
    熱電元件
    射頻
    半導體製程
    Sputtering
    Lithography
    Date: 2018
    Issue Date: 2018-08-29 15:55:44 (UTC+8)
    Abstract: 因應全世界能源問題,本論文研究重點在於收集生活中所有可能的廢熱來轉換成電能。並利用轉換能量的想法製作元件應用於目前市面上低功率電子產品。本論文之熱電元件大小尺寸長寬高分別為35mm x 35mm x 1mm並利用有400nm氧化層的矽基板作為基板,元件圖形運用黃光半導體製程建構128對的微陣列,藉由射頻濺鍍的方式製備N型(〖Cu〗_0.02 Bi_2 Te_2.7 Se_0.3)及P型(〖Bi〗_0.5 Sb_1.5 Te_3+0.33%Aerogel)的熱電材料且厚度達到10 μm。最後利用金作為上電極使128對的P型材料及N型材料串聯。本論文最大的突破是相較一般市售元件在熱傳導上降低將近一個數量級。並且期待在接近10K的溫差下能夠產生足以驅動電子元件功率。若能妥善利用該元件對於環境溫度變化極為敏銳且瞬間輸出電壓極大的優點,對於現代社會將是一大福音。本論文的熱電元件最津津樂道的是它代表著乾淨且永續的能源供應,熱電轉換的想法也可能是解決未來能源危機上的解決之道。
    In response to the rising concern of global energy shortage, this thesis focus on how to transfer the waste heat from our daily life to electric power. We use this idea to create a device that can convert the energy to fit the need of most electrical devices which demand lower power in market. The diameter of thermoelectric device is 35 mm x 35 mm x1 mm in our work. We use silicon with 400 nm oxide layer as substrate. The pattern of 128 pairs of micro array thermoelectric device is constructed by semiconductor process. The N-type (〖Cu〗_0.02 Bi_2 Te_2.7 Se_0.3) and P-type(〖Bi〗_0.5 Sb_1.5 Te_3+0.33%Aerogel) film with thickness of 10 μm deposited by Radio Frequency Sputtering was prepared and the Au film was deposited as electrodes to make 128 pairs of P-N array. The breakthrough in this thesis is to reduce thermal conductance of the device one order less than that of commercial ones. This device is expected to output enough power to drive electronic devices as the temperature gradient near 10 K. If we can completely use the advantage of our device which is sensitive to environment temperature and give an electrical voltage output, then the idea will give society a valuable benefit. Thermoelectric device has tremendous potential of commercial value. The most value of this thesis is that thermoelectric device can present clean green energy, it may offer a solution to solve the global warming and energy shortage.
    Reference: [1] Wenhua Zhang (2016), A high power density micro-thermoelectric generator fabricated by an integrated bottom-up approach, journal of microelectromechanical system, vol. 25, no. 4, p.744-749
    [2] Leonov V. Thermoelectric energy harvester on the heated human machine. J Micro Micro 2011;21:1–8.
    [3] Yancheng Wang,2018,Wearable thermoelectric generator to harvest body heat for powering a miniaturized accelerometer,Applied Energy,p.690-698
    [4] Funahashi S, Nakamura T, Kageyama K, Ieki H. Monolithic oxide–metal composite thermoelectric generators for energy harvesting. J Appl Phys 2011;109:1–4.
    [5] Z.Xiao, 2018, The fabrication of nanoscale Bi2Te3/Sb2Te3 multilayer thin film-based thermoelectric power chips ,microelectronic engineering ,volume 197, pages 8-14
    [6] Mizue Mizoshir , Yoshitaka Ito ,2017,Fabrication of thin-film thermoelectric generators with ball lenses for conversion of near-infrared solar light, The Japan Society of Applied Physics, 06GN06
    [7] ShuangLiu, 2018,Micro-thermoelectric generators based on through glass pillars with high output voltage enabled by large temperature difference, Applied Energy
    Volume 225,Pages 600-610
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    [18]Seebeck, Retrieved June 8 2018, from: https://en.wikipedia.org/wiki/Thermoelectric_effect
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    [29] ZiyangWang,2009, Realization of a wearable miniaturized thermoelectric generator for human body applications Sensors and Actuators A: Physical
    Volume 156, Issue 1,Pages 95-102
    Description: 碩士
    國立政治大學
    應用物理研究所
    1057550041
    Source URI: http://thesis.lib.nccu.edu.tw/record/#G1057550041
    Data Type: thesis
    DOI: 10.6814/THE.NCCU.AP.003.2018.B04
    Appears in Collections:[應用物理研究所 ] 學位論文

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