博碩士論文 93226068 詳細資訊


姓名 吳嘉元(Jia-Yuan Wu)  查詢紙本館藏   畢業系所 光電科學與工程學系
論文名稱 溶膠凝膠法合成以鉭元素為基礎的全固態電致變色元件
(SOL-GEL SYNTHESIS OF TANTALUM BASED ALL-SOLID-STATE ELECTROCHROMIC DEVICES)
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摘要(中) 電致變色元件(Electrochromic Device,ECD)是利用對電致變色材料施加偏壓,改變材料本身的氧化還原狀態,使其達到可重複循環的染色/褪色反應。其應用範圍廣泛,目前主要商品為節約能源的變色型節能窗(smart window)。
本實驗以五氧化二鉭(Ta2O5)作為電致變色層,用溶膠凝膠(sol-gel)法製作透明、高穿透率的五氧化二鉭液體,利用旋轉塗佈法(spin-coating)製成五氧化二鉭薄膜,可大幅降低電致變色元件的生產成本,初步完成的全固態電致變色元件可重複循環達60次以上,最大對比度可達20%,而染色/褪色的響應,可在數秒內達成。
摘要(英) We successfully sol-gel synthesize electrochromic tantalum pentoxide (Ta2O5) coatings on indium tin oxide glass (ITO) at room temperatures. Compare to other tantala-based materials reported in the literature, our device is all-solid-state, with higher extinction, low-cost and a longer life-time. Ta2O5 is transparent over a wide range of wavelength. The coloration and bleaching states can be reversibly obtained for more than 60 cycles with an applied voltage as low as 3V. The achieved extinction is estimated to be over 20%. The coloring/bleaching response time is found in several seconds.
關鍵字(中) ★ 電致變色
★ 五氧化二鉭
★ 溶膠凝膠
關鍵字(英) ★ Electrochromic
★ Tantalum Pentoxide
★ sol-gel
論文目次 目錄
中文摘要 Ⅰ
英文摘要 Ⅱ
誌謝 Ⅲ
總目錄 Ⅳ
圖目錄 Ⅵ
表目錄 Ⅷ
第一章 序論 1~10
1.1 前言 1
1.2 文獻回顧 3
1.3 研究動機 9
第二章 電致變色元件架構及材料選擇 11~24
2.1 元件架構 11
2.1.1 非互補式電致變色元件系統 11
2.1.2 互補式電致變色元件系統 15
2.2 材料選擇 17
2.2.1 電致變色層 18
2.2.2 電解質與離子儲存層 19
2.2.3 透明導電層 23
第三章 元件製作與量測 25~48
3.1 實驗步驟 25
3.2 元件量測與結果分析 29
3.2.1 Ta2O5 薄膜折射率量測 29
3.2.2 膜厚與穿透率對比度、響應時間之關係 33
3.2.3 製程溫度與穿透率對比度、響應時間之關係 41
3.2.4 正、負偏壓下之電致變色效應 44
第四章 結論與未來展望 49~51
4.1 結論 49
4.2 未來展望 50
參考文獻 52~55
著作列表 56
參考文獻 [1] 無悔策略, “ http://www.edf.org.tw/News/green20050301.htm ”
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[4] Zheng-Wen Fu, Qi-Zong Qin. “Pulsed Laser Deposited Ta O Thin Film as an Electrochromic Material ” Electrochemical and Solid-Sate Letters, 2 (11)600-601 (1999).
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[8] S. Mattsson, G. A. Niklasson, "Isothermal transient ionic current as a characterization technique for ion transport in Ta2O5," Journal of Applied Physics., 85, 8199-8204 (1999
[9] Kwang-Soon Ahn, Yoon-Chane, and Yung-Eun Sung. “All-solid-sate electrochromic device composed of WO and with a Ta O protective layer ”APPLIED PHYSICS LETTERS. VOLUME 81, NUMBER 21. 18 NOVEMBER 2002.
[10] Shu-Yii Wu, Wei-Feng Chen. 吳石乙、陳為峰 “循環伏安法與紫外線光譜在電致變色材料氧化鎳之應用 CV/UV Application on the Investigation of Nickel Oxide Electrochromic Materials” 科儀新知第二十五卷第六期93.6 p64~p71.
[11] K. S. Ahn, Y. C. Nah, Y. E. Sung, K. Y. Cho, S. Shin, and J. K. Park, "All-solid-state electrochromic device composed of WO3 and Ni(OH)2 with a Ta2O5 protective layer," Appl. Phys. Lett., 81, 3930-3932 (2002).
[12] E. Franke, C. L. Trimble, M. J. DeVries, J. A. Woollam, M. Schubert, and F. Frost,“Dielectric function of amorphous tantalum oxide from the far infrared to the deep ultraviolet spectral region measured by spectroscopic ellipsometry,” J. Appl. Phys. 88, 5166-5174 (2000).
[13] 黃鎮江, ”燃料電池 ”92年11月, P.4-3~P.4-23
[14] NIMAI CHAND PRAMANIK and PRASANTA KUMAR BISWAS, “Development of nano indium tin oxide (ITO) grains by alkaline hydrolysis of In(III) and Sn(IV) salts ”, Bull. Mater. Sci., Vol. 25, No. 6, November 2002, pp. 505–507.
[15] David H. Griffiths. “ INTRODUCTION to ELECTROD-YNAMICS ” Third Edition. INTERNATIONAL EDITION. P.100~392
[16] Y. Kavanagh , M.J. Alam , D.C. Camerona , “The characteristics of thin film electroluminescent displays produced using sol–gel produced tantalum pentoxide and zinc sulfide ”, Thin Solid Film 447-448 (2004) 85-89.
[17] B. K. Moon, J. Aoyama, and K. Katori, "Ultrathin and highly insulating amorphous- Ta2O5 films formed on Ru/TiN /Ti/n+-Si substrates," Appl. Phys. Lett., 74, 824-826, (1999)
[18] Fatma Z. Tepehana,*, Ferhad E. Ghodsia, Nilgun Ozerb, Galip G. Tepehana ,“ Optical properties of sol-gel dip-coated Ta2O5 films for electrochromic applications“, Solar Energy Materials & Solar Cells 59 (1999) 265}275
指導教授 戴朝義(Chao-Yi Tai) 審核日期 2006-7-11
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