設施農業：光能設施於農業固碳之應用【化學工程學系/林玠廷 助理教授】
| 論文篇名 | 英文：Enhancing the Efficiency and Stability of Tin‐Lead Perovskite Solar Cells via Sodium Hydroxide Dedoping of PEDOT: PSS 中文： 透過 PEDOT 的氫氧化鈉去摻雜提高錫鉛鈣鈦礦太陽能電池的效率和穩定性：PSS |
| 期刊名稱 | Small Methods |
| 發表年份,卷數,起迄頁數 | 2024, 2400302 |
| 作者 | Wu, Dong-Tai; Zhu, Wen-Xian; Dong, Yueyao; Daboczi, Matyas; Ham, Gayoung; Hsieh, Hsing-Jung; Huang, Chi-Jing; Xu, Weidong; Henderson, Charlie; Kim, Ji-Seon; Eslava, Salvador; Cha, Hyojung; Macdonald, Thomas J.; Lin, Chieh-Ting(林玠廷)* |
| DOI | 10.1002/smtd.202400302 |
| 中文摘要 | 錫-鉛鈣鈦礦太陽能電池對太陽光譜的廣泛吸收，成為全鈣鈦礦串聯太陽能電池底部電池的候選材料。然而有一個顯著的挑戰在於普遍使用的空穴傳輸層PEDOT:PSS，其高摻雜會導致界面複合，進而限制電池效率。在本研究中使用 NaOH 對 PEDOT:PSS 進行去摻雜，旨意是在提高錫-鉛鈣鈦礦太陽能電池的效率。二次離子質譜分析顯示，鈉離子擴散進入鈣鈦礦層，改善其結晶度並增大晶粒尺寸。包括光致發光和納秒瞬態吸收光譜在內的綜合評估證實，去摻雜顯著降低了界面複合，使開路電壓達到 0.90 V。此外去摻雜的 PEDOT:PSS 提高了並聯電阻和填充因子，最高達到 0.81。這些改進使得功率轉換效率從19.7%提升至 22.6%。使用 NaOH 對 PEDOT:PSS 進行去摻雜還使其性質從酸性轉變為鹼性，增強了穩定性，並在 N2氣氛下儲存 1176 小時後的功率轉換效率損失小於 7%。 |
| 英文摘要 | Tin-lead (Sn-Pb) perovskite solar cells (PSCs) have gained interest as candidates for the bottom cell of all-perovskite tandem solar cells due to their broad absorption of the solar spectrum. A notable challenge arises from the prevalent use of the hole transport layer, PEDOT:PSS, known for its inherently high doping level. This high doping level can lead to interfacial recombination, imposing a significant limitation on efficiency. Herein, NaOH is used to dedope PEDOT:PSS, with the aim of enhancing the efficiency of Sn-Pb PSCs. Secondary ion mass spectrometer profiles indicate that sodium ions diffuse into the perovskite layer, improving its crystallinity and enlarging its grains. Comprehensive evaluations, including photoluminescence and nanosecond transient absorption spectroscopy, confirm that dedoping significantly reduces interfacial recombination, resulting in an open-circuit voltage as high as 0.90 V. Additionally, dedoping PEDOT:PSS leads to increased shunt resistance and high fill factor up to 0.81. As a result of these improvements, the power conversion efficiency is enhanced from 19.7% to 22.6%. Utilizing NaOH to dedope PEDOT:PSS also transitions its nature from acidic to basic, enhancing stability and exhibiting less than a 7% power conversion efficiency loss after 1176 h of storage in N2 atmosphere. |
| 發表成果與本中心研究主題相關性 | 過 NaOH 去摻雜 PEDOT:PSS，顯著提高了錫-鉛鈣鈦礦太陽能電池的光電效率，並減少界面複合，最終使功率轉換效率提升至 22.6%。這種技術的改進對於農業應用具有極大的潛力。在現代科技農業中，太陽能作為清潔能源的角色日益重要。提高鈣鈦礦太陽能電池的效率，可為農業設備提供更穩定且高效的能源，支持智慧灌溉系統及自動化控制等現代化農業技術，進一步提升農業生產效率與資源管理效能。此外去摻雜後的 PEDOT:PSS 由酸性轉變為鹼性，大幅提升了電池的穩定性，有助於農業設施在惡劣環境下的長期運行，推動永續農業的發展。 |
