| 摘要: | 本研究成功地開發出數種有機光電材料，並將其作為自組裝單分子層 （SAMs）沉積在 NiOx 薄膜上，用於錫鈣鈦礦太陽能電池（TPSCs）。
第一系列以 (triphenylamine, TPA)為核心，並於核心一端接上推電子基團為末端帶有甲氧基的三苯胺，另一端接上拉電子基丙二腈 (malononitrile)、氰乙酸乙烯基 (ethyl cyanoacetate)、氰甲基磷酸二乙酯 (diethyl cyanomethylphosphonate) 及 氰甲基膦酸 (cyanomethyl phosphonic acid)作為錨定基團。此外引入噻吩來延長共軛系統及外掛不同數量的推電子基團，以調控材料能階及增加分子內電荷轉移，開發一系列有機電洞傳輸層材料 (分子結構如下圖所示) 應用於錫鈣鈦礦太陽能電池，並以自組裝的方式搭配 NiOx 製備元件。其中又以 TPA-T-CA (4)、4TPA-PE (5a) 及4TPA-PA (6a) 表現優異，目前效率分別為8.2%、9.1% 及 8.7%，與使用自組裝方法製造的錫鈣鈦礦太陽能電池的最高報導效率 8.3% 相比，已有優異的表現，目前元件效率仍在優化中，期望效率能有更高的突破。
第二系列利用具硫鏈之環戊烷二噻吩衍生物 (CDT)作為核心，並於核心一端接上推電子基團為末端帶有甲氧基的三苯胺 (TPA)，另一端接上拉電子基丙二腈 (MN)、氰乙酸乙烯基 (CA)、氰甲基膦酸二乙酯 (PE)及氰甲基膦酸 (PA)作為錨定基團，以調控分子能階及增加分子內電荷轉移，最後在核心引入不同長度之硫鏈，以增強分子間的作用力及溶解度，開發一系列有機電洞傳輸層材料 (分子結構如下圖所示)，應用於錫鈣鈦礦太陽能電池中並以自主裝的方式搭配 NiOx 製備元件，其效率分別為 8.03%、8.41%、4.54% 及 5.15%。與目前使用自組裝方式所製備的錫鈣鈦礦太陽能電池最高報導效率 8.3% 相比，已有優異的表現。
;This study successfully developed several organic photoelectronic materials, employing them as self-assembled monolayers (SAMs) deposited on NiOx film for tin perovskite solar cells (TPSCs).
In the first series, developed primarily based on TPA as the core, one end of the core was functionalized with dimethoxy-substituted triphenylamine as a terminal electron-donating group, while the other end was modified with electron-withdrawing groups: malononitrile (MN), ethyl cyanoacetate (CA)、diethyl cyanomethyl phosphonate (PE) and cyanomethyl phosphonic acid (PA) as anchoring groups. Additionally, thiophene units were incorporated to extend the conjugation length, and various electron-donating groups were attached to regulate the energy level of the materials and enhance the intramolecular charge transfer effect. Development of a series of organic optoelectronic materials. Among these, TPA-T-CA (4), 4TPA-PE (5a), and 4TPA-PA (6a) SAM-based TPSC devices exhibited promising efficiencies of 8.2%, 9.1%, and 8.7%, respectively. These outstanding results exceeded the highest reported efficiency of 8.3% in TPSCs. Further optimization of these series is ongoing.
The second series, developed primarily based on Cyclopentane dithiophene (CDT)as the core, with one end of the core functionalized with dimethoxy-substituted triphenylamine as a terminal electron-donating group, and the other end modified with electron-withdrawing groups: malononitrile (MN), ethyl cyanoacetate (CA)、diethyl cyanomethyl phosphonate (PE) and cyanomethyl phosphonic acid (PA) as anchoring groups, various electron-donating groups were attached to regulate the energy level of the materials and enhance the intramolecular charge transfer effect. Subsequently, different lengths of thioalkyl chains were attached to the core to enhance intermolecular interactions and solubility. This aimed to develop novel optoelectronic materials with NiOx for tin perovskite solar cells, fabricated into devices via self-assembly. These outstanding results exceeded the highest reported efficiency of 8.3% in TPSCs. |
