博碩士論文 105521005 詳細資訊




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姓名 洪群恩(Chun-En Hung)  查詢紙本館藏   畢業系所 電機工程學系
論文名稱 鋁摻雜氧化鋅及其熱電特性研究
(Thermoelectric properties of Al-doped ZnO)
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摘要(中) 近年來,廢熱回收技術越發成熟,熱電模組的潛在應用相當可觀,如鋼鐵、水泥等製造業,或是家庭用電、汽車廢熱、太陽能發電等生活用電,熱電材料是靠溫差發電,但由於以往熱電材料至成之模組轉換效率較低,發展較為緩慢,隨著微奈米結構技術成熟,更多特性較佳之熱電材料被研究、討論,更多創意之科技利用陸續被開發,確實是一項值得期待的綠能科技。
本論文將利用鋁摻雜之氧化鋅材料(AZO),再嘗試複合2.5at%~20at%之硒化鋅或硫化鋅,並分析各種比例之熱電特性來做比較,我們發現當複合硒化鋅4.5at%時,其熱電特性較為優秀,因此我們再將此參數之熱電材料結合P-type熱電材料,製作出一熱電模組,來量測其發電功率。雖然本實驗透過複合硒化鋅,成功改善AZO之熱電特性,降低了熱導率,但是對於Seebeck係數並無明顯提升,希望能以此實驗為基石,在往後能尋找出更合適之複合材料或參數,研究出熱電特性更為優秀之材料。
摘要(英) In recent years, heat recovery technology has become more mature, and the potential applications of thermoelectric modules are considerable, such as manufacturing industries, or household electricity, automobile waste heat, solar power and other domestic electricity, thermoelectric materials rely on temperature difference power generation, but due to the low conversion efficiency of the thermoelectric materials in the past, the development is relatively slow. With the maturity of the micro-nano structure technology, more thermoelectric materials with better characteristics have been studied and discussed, and more creative technologies have been developed. It is a green energy technology worth looking forward to.
This paper will use aluminum-doped zinc oxide material (AZO), and then try to compound 2.5at%~20at% zinc selenide or zinc sulfide, and analyze the thermoelectric characteristics of various proportions for comparison. We found that when compounding zinc selenide at 4.5at%, the thermoelectric characteristics are excellent. Therefore, we combine this thermoelectric material with P-type thermoelectric material to produce a thermoelectric module and measure its power generation. Although this experiment succeeded in improving the thermoelectric characteristics of AZO and reducing the thermal conductivity through the composite zinc selenide, it did not significantly improve the Seebeck coefficient. It is hoped that this experiment can be used for the future work, and try to find more suitable composite material in the future to develop better thermoelectric properties.
關鍵字(中) ★ 鋁摻雜氧化鋅 關鍵字(英)
論文目次 摘要 i
Abstract ii
誌謝 iii
圖目錄 v
第一章 簡介與研究動機 1
1-1前言 1
1-2研究動機與目的 2
第二章 基礎理論及文獻回顧 4
2-1熱電效應 4
2-2熱電優質 6
2-3氧化鋅之摻雜 7
2-4冷壓法 7
2-5 高溫燒結 8
第三章 實驗流程與儀器設備 9
3-1實驗流程 9
3-2實驗方法 10
3-3實驗量測介紹 15
3-4 實驗儀器介紹 19
第四章 實驗結果分析與討論 21
4-1 AZO製程參數及塊材量測 21
4-2 AZO複合ZnSe、ZnS密度比較與SEM圖 22
4-3 EDS量測 27
4-4 AZO複合ZnSe、ZnS熱電特性比較 28
4-5模組量測 39
4-6 結論與未來展望 42
參考文獻 43
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指導教授 辛正倫(Chen-Lun Hsin) 審核日期 2018-7-25
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