設施農業：節能栽培與滅菌【化學工程學系/陳志銘特聘教授】
| 論文篇名 | 英文：Optimization of Photoelectrode by Structural Engineering for Efficiency Improvement of Dye-sensitized Solar Cells at Different Light Intensity 中文：以結構工程最佳化光電極提升染料敏化太陽能電池在不同光強度之效率 |
| 期刊名稱 | Journal of Alloys and Compounds |
| 發表年份,卷數,起迄頁數 | 2021, 870, no.159478 |
| 作者 | Chen, Li-Syuan; Sil, Manik Chandra; Chang, Cheng-Chung*; Chen, Chih-Ming(陳志銘)* |
| DOI | 10.1016/j.jallcom.2021.159478 |
| 中文摘要 | 由於高相容性和穩定性，鈦已成為染料敏化太陽能電池光電極基板的最佳選擇。為提高鈦基材的功效，通過陽極氧化對鈦進行結構改造，以在表面建構二氧化鈦奈米管結構。透過陽極氧化電位的變化，進一步優化二氧化鈦奈米管結構，搭配商業 N719 染料與合成的有機 D-染料作為敏化劑組成染料敏化太陽能電池，並進行光伏特徵的性能分析。高度定向的二氧化鈦奈米管結構不僅增加了鈦基材與由二氧化鈦奈米顆粒組成的活性半導體層之間的相互作用接觸面積，同時作為電荷轉移的快速通道和攜帶敏化劑的額外通道，進而提高電池效率。使用 N719 染料在One Sun太陽光照射下，電池展現 7.67% 的最大效率（Jsc 為 16.06 mA/cm2，Voc 為 0.693 V，FF 為 0.689）。加入 D-Dye 可將電池效率進一步提高至 7.93%（Jsc 為 16.65 mA/cm2，Voc 為 0.701 V，FF 為 0.68）。這歸因於 D-Dye 分子的空間效應，其具有長翼展能力可抑制分子聚集。在低光照明下，由陽極氧化鈦光電極使用 D-Dye 在 3000 和 6000 lx 照明下，電池分別達到 15.31% 和 18.06% 的最大效率。 |
| 英文摘要 | Titanium (Ti) is a promising choice as the photoelectrode substrate of dye-sensitized solar cells (DSSCs) due to its high compatibility and stability. To enhance the efficacy of Ti more than a substrate, structural modification of Ti via anodization is performed to construct a TiO2 nanotube structure on the surface. Optimization of the TiO2 nanotube structure as a function of anodization potential is carried out in conjunction with the photovoltaic characterization of DSSCs using commercial N719 dye and synthesized organic D-Dye as the sensitizer. The highly oriented TiO2 nanotube structure not only increases the interactive contact area in between the Ti substrate and active semiconductor layer composed of TiO2 nanoparticles but also serves as a fast pathway for charge transfer and an additional channel to carry sensitizers, thereby greatly improving the cell efficiency. Maximum efficiency of 7.67% (Jsc of 16.06 mA/cm2, Voc of 0.693 V, and FF of 0.689) is achieved for the cell constructed by anodized Ti photoelectrode using N719 dye under 1 sun illumination. Incorporation of D-Dye further enhances the cell efficiency to 7.93% (Jsc of 16.65 mA/cm2, Voc of 0.701 V, and FF of 0.68) and this is attributed to the spatial effect of D-Dye molecules which have a long wingspan capable of suppressing the molecular aggregation. Under low light illuminations, maximum efficiency of 15.31% and 18.06% are reached for the cells constructed by anodized Ti photoelectrode using D-Dye under 3000 and 6000 lx illumination, respectively. |
| 發表成果與本中心研究主題相關性 | 製作TiO2奈米管光電極，搭配新式有機染料，增加電子傳輸效率，並提升太陽能電池的效能表現。 |
