設施農業：光能設施於農業固碳之應用【化學系/葉鎮宇特聘教授】
| 論文篇名 | 英文：Investigation on the Coordination between Methylpyridine Additives and the [Cu(dmp)2]2+/+ Redox Couple and Its Improvement towards the Stability of the Dye-Sensitized Solar Cells 中文：甲基吡啶添加劑與[Cu(dmp)2]2+/+氧化還原對之間的配位及其對染料敏化太陽能電池穩定性的改進研究 |
| 期刊名稱 | Sustainable Energy & Fuels |
| 發表年份,卷數,起迄頁數 | 2024, 8, 2256–2264. |
| 作者 | Nguyen, Vinh Son; Kannankutty, Kala; Chen, Yu-Hsuan; Wang, Ding-Cheng; Yeh, Chen-Yu(葉鎮宇)*; Wei, Tzu-Chien |
| DOI | 10.1039/d3se00983a |
| 中文摘要 | 在染料敏化太陽能電池(DSSC) 中，使用銅(II/I) 複合物氧化還原對可實現高於1.0 V 的高開路電壓。由於製作DSSC常用的添加劑TBP會與銅錯化物配位進而導致元件穩定性差之故，因此在本研究中，研究了一系列吡啶衍生物2-甲基吡啶（2MP）、3-甲基吡啶（3MP）、4-甲基吡啶（4MP）和3,5-二甲基吡啶（35DMP）作為TBP的替代品，用於解決或減輕TBP 引起的性能下降。使用紫外-可見分光光度滴定法、循環伏安法和 1H 核磁共振波譜法對添加劑和銅（II）配合物之間的配位進行了廣泛的研究。研究發現 35DMP 五配位銅 (II) 對對電極的電化學活性和本體電解質中的離子擴散影響最小。在長期穩定性測試的實驗觀察到含有 35DMP 添加劑的 DSSC 不僅在功率轉換效率方面優於使用 TBP作為添加劑的元件，穩定性也相對突出。 |
| 英文摘要 | In dye-sensitized solar cells (DSSCs), the use of copper(II/I) complex redox couples enables a high opencircuit voltage of greater than 1.0 V. However, the widely used electrolyte additive, 4-tert-butylpyridine (TBP), poisons the copper(II) complex, resulting in poor device stability. In this study, a series of pyridine derivatives 2-methylpyridine (2MP), 3-methylpyridine (3MP), 4-methylpyridine (4MP), and 3,5-dimethylpyridine (35DMP) were studied as alternatives to TBP for solving or mitigating the TBP-induced performance degradation. The coordination between the additives and copper(II) complex was extensively studied using ultraviolet-visible spectrophotometric titration, cyclic voltammetry, and 1H nuclear magnetic resonance spectroscopy. The moiety position on the pyridine ring was found to greatly affect the electrochemical properties of the redox couple. The 35DMP penta-coordinated copper(II) was found to least affect the electrochemical activity at the counter electrode and ionic diffusion in the bulk electrolyte. A DSSC with a 35DMP additive outperforms its TBP-based counterparts in not only power conversion efficiency but also long-term stability. |
| 發表成果與本中心研究主題相關性 | 太陽能電池可將光轉換成電，其中染敏電池中開發新型染料以期提高光電轉換效率的目標在永續農業發展上的重要性不容小覷，因為光源可以是大自然的太陽光，可以是人造的室內弱光，而光則是在農業發展上不可或缺的條件之一。 |
