研究生: |
傅從順 Tsung-Shun Fu |
---|---|
論文名稱: |
三元熱電材料應用於微致冷晶片之研製 Fabrication of micro thermoelectric cooler with ternary thermoelectric material |
指導教授: |
楊啓榮
Yang, Chii-Rong |
學位類別: |
碩士 Master |
系所名稱: |
機電工程學系 Department of Mechatronic Engineering |
論文出版年: | 2011 |
畢業學年度: | 99 |
語文別: | 中文 |
論文頁數: | 114 |
中文關鍵詞: | 熱電材料 、電化學沉積技術 、熱傳導係數 、微致冷晶片 |
英文關鍵詞: | Thermoelectric material, electrochemical deposition technology, thermal conductivity, micro-cooler |
論文種類: | 學術論文 |
相關次數: | 點閱:297 下載:5 |
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本研究以電化學沉積的方式電鍍n型與p型 Bi-Te-Se熱電材料,同時,藉由平行線量測法對電化學沉積的熱電材料,量測其熱傳導係數,並獲得相關的熱電特性。最後利用已知熱電特性的熱電材料,搭配微機電製程技術,進行微致冷晶片之研製。
以平行線量測法成功量取熱電材料的熱傳導係數,量測結果n-typed Bi-Te-Se熱電材料,其熱傳導係數為0.185 W/mK,而p-typed Bi-Te-Se熱電材料,其熱傳導係數為0.633 W/mK。藉由熱電優值公式獲得n-typed Bi-Te-Se熱電材料,其熱電優值為17.34×10-4/K,且在常溫工作環境下的ZT值為0.52;而p-typed Bi-Te-Se熱電材料,其熱電優值為53.189×10-3/K,且在常溫工作環境下的ZT值為1.596。最後,將已知熱電特性的熱電材料,藉由電化學沉積搭配微機電製程技術,成功研製出24對的微致冷晶片,其熱電接腳尺寸為600 um的方形陣列,電鍍高度約為10 um,後續將量測其致冷性能,並比較在不同對數條件下的致冷能力。
In this study, n-typed and p-typed Bi-Te-Se thermoelectric materials are electroplated by electrochemical deposition method. The thermal conductivity and related thermoelectric characteristics were measured by parallel line method. Finally, the n-type and p-type Bi-Te-Se materials with known properties were applied to fabricate micro-cooler by MEMS process.
The thermal conductivity were measured by parallel line method. For n-typed Bi-Te-Se material, the thermal conductivity is 0.185 W/mK, and for p-typed Bi-Te-Se material, the thermal conductivity is 0.633 W/mK. The figure of merit of n-typed Bi-Te-Se material is 17.34×10-4 /K, and room-temperature ZT value is 0.52. The figure of merit of p-typed Bi-Te-Se material is 53.189×10-4 /K, and room-temperature ZT value is 1.596. Finally, micro-coolers with 24 pairs were fabricated by electrochemical deposition and MEMS techniques, in which the dimension of the thermoelectric legs is 600 m and thickness of the electroplated is 10 m. Furthermore, the comparison of the cooling capability under different conditions will be measured.
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