Facility Agriculture: Energy Saving and Sterilization【Department of Chemical Engineering / Chen, Chih-Ming / Distinguished Professor】
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：Electropolymerization of Poly(spiroBiProDOT) on Counter Electrode for Platinum-free Dye Sensitized Solar Cells
中文：以電沉積方式製作Poly(spiroBiProDOT)作為無白金染料敏化太陽能電池之對電極
期刊名稱 Journal of Materials Chemistry C
發表年份,卷數,起迄頁數 2021, 9, 12094-12101
作者 Sil, Manik Chandra; Chang, Hong-Da; Jhan, Jhih-Jhu; Chen, Chih-Ming(陳志銘)*
DOI 10.1039/D1TC02712C
中文摘要 尋找白金催化觸媒的取代物在染料敏化太陽能電池的對電極材料發展上受到越來越多的關注，亦可實現有效電荷轉移與成本效益之間的平衡。本研究使用電化學聚合方法成功在摻氟氧化錫對電極上沉積聚(2H,2'H,4H,4'H-3,3'-螺二[噻吩並[3,4-b][1,4]二氧雜環庚烷])的聚合物層，亦稱為聚(spiroBiProDOT)。聚（3,4-亞乙基二氧噻吩）（稱為 PEDOT）與白金也沉積在摻氟氧化錫對電極，並組成電池進行比較。以聚(spiroBiProDOT)、PEDOT 與白金對電極製造的太陽能電池進行光伏效能的比較，分別展現出7.9%、6.8% 和 8.31% 的最大光電轉換效率。與 PEDOT 相比，聚(spiroBiProDOT) 在替代白金方面表現出更強的競爭力。其競爭力主要來自於聚(spiroBiProDOT) 展現出更好的電荷轉移，因為它的有序噻吩部分通過螺鍵連接，可以增加光電流密度，從而提高電池效率。此外，透過電子密度計算、微觀結構和阻抗分析，合理化解釋聚(spiroBiProDOT) 的更高效率。
英文摘要 A better replacement of electrocatalytic platinum on counter electrodes of dye-sensitized solar cells (DSSCs) has received increasing attention to achieve a balance between efficient charge transfer and cost-effectiveness. Using an electrochemical polymerization method, a polymeric layer of poly(2H,2′H,4H,4′H-3,3′-spirobi[thieno[3,4-b][1,4]dioxepine]), called poly(spiroBiProDOT), was fabricated on a fluorine-doped tin oxide (FTO) counter electrode. For comparison, poly(3,4-ethylenedioxythiophene), called PEDOT, a polymer layer and Pt were also deposited on the FTO counter electrode. Photovoltaic characterizations of the fabricated solar cells based on poly(spiroBiProDOT), PEDOT, and Pt counter electrodes were performed, and maximum power conversion efficiencies of 7.9%, 6.8%, and 8.31% were achieved, respectively. Poly(spiroBiProDOT) exhibits a stronger competitiveness to replace Pt in comparison with PEDOT. The competitiveness mainly comes from the better charge transfer in poly(spiroBiProDOT) due to its ordered thiophene moiety connected by a spiro linkage, which can increase the photocurrent density, and therefore, the cell efficiency. Electron density calculation, microstructural characterization, and impedance analysis were performed to rationalize the better efficiency of poly(spiroBiProDOT).
發表成果與本中心研究主題相關性 合成poly(spiroBiProDOT)取代傳統白金催化觸媒，降低太陽能電池製作成本，同時維持高效能表現。