染料敏化太陽能電池之對電極之製法

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

099130466

專利證號

I 397563

專利獲證名稱

染料敏化太陽能電池之對電極之製法

專利所屬機關 (申請機關)

國立臺灣大學

獲證日期

2013/06/01

技術說明

本發明為使用一高分子材料，主成份為(poly(oxyethylene)-imide (POE-imide))，此高分子用於分散奈米碳管與穩定白金奈米顆粒於水或有機溶劑中。將此複合物使用spin-coating方式於高速(2000 rpm，30s)下濺鍍於導電玻璃(FTO glass)並以高溫 (350 oC，20 min)處理，裂解高分子材料與使部份白金粒子熔融，以製備染料敏化太陽能電池之對電極。利用此對電極於染料敏化太陽能電池中，與一般使用只濺渡白金於導電玻璃比較之下，因為粗糙度大，白金催化電解液之氧化還原能力提高，因而提高其短路電流，進一步發現其光電轉換效率大約可增加1%。另外，此對電極透明性高，故可應用於適合背面照光之可撓式塑膠基板染料敏化太陽能電池對電極。 The novel composite, poly(oxyethylene)-segmented imide (POEM), was synthesized for using as a dispersant to prepare a novel nanocomposite material of platinum nanoparticles and multi-wall carbon nanotubes (PtNPs/MWCNTs). The composite material was spin-coated (2000 rpm, 30 s) as the catalyst-film onto the FTO, followed by annealing at 350 oC for 20 min to prepare the corresponding counter electrode (PtNPs/MWCNTs-CE) for a DSSC. The JSC and η of the DSSC with PtNPs/MWCNTs-CE were enhanced in comparison to a DSSC with bare platinum counter electrode (Pt-CE) under 100 mW/cm2 illuminations. From the investigations on the surface morphologies of the CEs, it is concluded that PtNPs/MWCNTs-CE has rougher surface and consequent higher catalytic ability than those of Pt-CE and this is the reason for the better performance of the DSSC with PtNPs/MWCNTs-CE than that of the cell with Pt-CE. This CE is also benefit for back-illumination flexible DSSCs due to high transmittance of the CE.

備註

本部(收文號1100033534)同意該校110年6月9日校研發字第1100036312號函申請終止維護專利(台大)

連絡單位 (專責單位/部門名稱)

產學合作總中心

連絡電話

33669945

網址