設施農業：智慧感測【化學系葉鎮宇教授】

論文篇名 英文：Porphyrin Dimers as Hole-Transporting Layers for High-Efficiency and Stable Perovskite Solar Cells
中文：紫質二聚體可作為高效率且穩定性佳之鈣鈦礦太陽能電池中的電洞傳輸層
期刊名稱 ACS Energy Letters
發表年份,卷數,起迄頁數 2018, 3, 1620-1626
作者 Yu-Hsien Chiang, Hsien-Hsin Chou, Wei-Ting Cheng, Yun-Ru Li, Chen-Yu Yeh*(葉鎮宇), and Peter Chen*
DOI 10.1021/acsenergylett.8b00607
中文摘要 在此研究中， 我們發展出兩種以紫質為基底的電洞傳輸材料 (hole-transporting materials, HTMs) 製作三重陽離子鈣鈦礦太陽能電池，這兩種材料分別為WT3和YR3。這兩種新穎新穎材料的結構包含二具體紫質結構，其HOMO分子軌域能階高低適切，具高的電洞傳輸性以及好的電荷提取能力，這些特性都非常適合應用於鈣鈦礦太陽能電池的效率改良。不僅如此，WT3和YR3這兩種材料在成膜的製作上也有好的表現，例如: 無小孔產生、表面平滑、表面濃度高等，這些表現都有助於提升鈣鈦礦太陽能電池的效率。 在1 Sun（AM 1.5G）之光照條件下測試使用WT3為電動傳輸材料的鈣鈦礦太陽能電池光電能轉換的效率 (power conversion efficiency, PCE) 可達 19.44 %，而使用YR3的 光電轉換效率為17.84 %， WT3的效率甚至比使用spiro-OMeTAD為電動傳輸材料的光電轉換效率18.62 %還要高。此外， 在耐光照與耐溫溼度穩定性的測試下，以WT3為電動傳輸材料的鈣鈦礦太陽能電池又比以spiro-OMeTAD為電動傳輸材料的鈣鈦礦太陽能電池的穩定性佳。
英文摘要 In this work, we demonstrate the optimum utilization of porphyrin-based hole-transporting materials (HTMs), namely, WT3 and YR3, for fabricating triple-cation perovskite solar cells. These newly designed HTMs based on dimeric porphyrin structure exhibit a good HOMO level, high hole mobility, and great charge extraction ability for perovskite solar cells. Moreover, through proper molecular engineering, dimeric porphyrins WT3 and YR3 are capable of forming films free of pinholes, with more uniform and dense surfaces leading to enhanced device performance. Perovskite solar cells using a WT3 HTM achieve a power conversion efficiency (PCE) of 19.44%, which is higher than that using YR3 (17.84%) and even spiro-OMeTAD (18.62%) under 1 Sun AM 1.5G illumination. In addition, WT3-based devices show better stability than spiro-based counterparts under moisture, light-soaking, and thermal testing conditions.