製備多層奈米二氧化鈦薄膜於染料敏化太陽能電池之應用

Preparation of Multilayer TiO2 Thin Films and Application to Dye-sensitized Solar Cells

陳鈺麟(Yu-Ling Chen)

指導教授 ： 張合 ； 韓麗龍

國立臺北科技大學/機電學院/製造科技研究所/碩士(2009年)

摘要

本研究利用三種不同形貌的二氧化鈦材料，分別為水熱法（Hydrothermal）製備的氧化鈦奈米管（Tnt）、奈米顆粒（H200）及真空潛弧製造系統（SANSS）製備的奈米氧化鈦懸浮液（SF），於染料敏化太陽能電池（dye-sensitized solar cells, DSSCs）光陽極之應用，並進行光電極的微結構設計，製備高效率的染料敏化太陽能電池。
將商用二氧化鈦粉體（Degussa P25）置於強鹼溶液中以水熱法製得氧化鈦奈米管（Tnt），於染料敏化太陽能電池光陽極之應用，實驗結果顯示，以Tnt奈米管所製得的光陽極，在AM1.5模擬太陽光（100 mW/cm2）下進行太陽能電池測試，其光電轉換效率為2.84%，將Tnt經450℃、500℃及550℃煅燒處理後發現，經550℃煅燒所製得的光陽極，其光電轉換效率為5.77%是三者間最佳，再將奈米管Tnt和奈米顆粒P25以不同比例混合所製得的電極，其最佳光電轉換效率為5.57%，最後近一步，利用奈米顆粒H200、Tnt-C550及SF設計多層二氧化鈦光陽極H200/Tnt-C550/SF，其最佳的光電轉換效率為7.07%。

關鍵字

染料敏化太陽能電池 ； 氧化鈦奈米管 ； 散射層 ； 水熱法

並列摘要

In this study, three different morphology of titanium dioxide materials, titania nanotubes (Tnt), nanoparticles (H200) were prepared by hydrothermal and Titanium dioxide nanofulid (SF) was prepared by Submerged Arc Nanoparticles Synthesis System (SANSS), were utilized for microstructure design of TiO2 electrode to fabricate high-efficiency DSSC.
Tnt from commercial TiO2 powders (Degussa P25) by alkaline hydrothermal method, was applied to fabricate the DSSC photoanode. It was found that the Tnt-based DSSC exhibited a conversion efficiency of 2.84% under A.M 1.5 simulated light irradiation (100mW/cm2). When Tnt was calcined at 450℃, 500℃and 550℃ found that the conversion efficiency of 5.77% at 550℃ was the best among the tested samples. The Tnt was mixed with nanoparticles (P25) with various ratio obtained the photoanode, the conversion efficiency of 5.57%. Finally, were utilized for microstructure design of TiO2 electrode to fabricate high-efficiency DSSC. The results show that the H200, Tnt-C550 and SF to fabricate multilayer TiO2 composites photoanode, the conversion efficiency of H200/Tnt-C550/SF-based DSSC was enhanced to 7.07%.

並列關鍵字

Dye-sensitized solar cells ； Titania nanotubes ； Scattering layer ； Hydrothermal method

參考文獻

[66] 陳韋安，應用電泳沉積技術於染料敏化太陽能電池與天然染料特性分析之研究，碩士論文，國立台北科技大學製造科技研究所，台北，2008。

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