| 摘要: | 本論文研究主要分為有機光伏打電池 (OPVs)、有機薄膜電晶體 (OTFT) 和鈣鈦礦電池中電洞傳輸層 (HTLs) 三個系列之材料開 發。
本研究主要延續之前開發出的雙?吩並?咯 (DTP) 核心，將其 延伸出兩個新核心，一為 TSDTP，為 DTP 掛上帶硫醚鏈之?吩;另 外一個為BDTP，為DTP之二聚體，二者皆有兩種碳鏈b-C16H33 及 b-C20H41，並將其兩末端外接拉電子基團 3-(二氰基亞甲基)?-1-酮 (IN) 與 5,6-(二氯)-3-(二氰基亞甲基)?-1-酮 (INCl) ，分別為 IN-TSDTP-b16 (1) 、 IN-TSDTP-b20 (2) 、 INCl-TSDTP-b16 (3) 、 INCl-TSDTP-b20 (4) 、 IN-BDTP-b16 (5) 、 IN-BDTP-b20 (6) 、 INCl-BDTP-b16 (7)、INCl-BDTP-b20 (8) ，開發出八種有機光伏打電 池材料。另外，以 DTP 二聚體 (BDTP) 為核心開發之新?型結構 BDTPQ-b16 (9)。此外，以DTP為核心開發三個不同鏈長之電動傳 輸層材料，分別為 b-C8H17 之 DTP-2D-b8 (10)、b-C16H33 之 DTP-2D-b16 (11) 及 b-C20H41 之 DTP-2D-b20 (12)。目前已將 DTP-2D-b8 及 DTP-2D-b16 應用在鈣鈦礦電池中，初步得到的元件 效能分別可達 13.60% 及 13.91% 之光電轉換效率。
這些新材料的光學和電化學性能 ( HOMO 和 LUMO ) 通過 UV-vis 和 DPV 來進行測定，並透過DSC和TGA來測定熱穩定性。 這些新開發小分子的光電元件正在測試優化中。;A series of new organic optoelectronic materials were synthesized and characterized for organic photovoltaic cells (OPVs), organic thin film transistor (OTFT) and hole transporting layers (HTLs).
Two new dithienopyrrole (DTP) cores were developed for OPVs. First, DTP core was end-capped with a thioalkylated thiophene unit to give more conjugated TSDTP. Second, the DTP core was dimerized to give more conjugated BDTP. To enhance the solubility of the new DTPs, b-C16H33 and b-C20H41 were introduced in the DTP cores. Then, the above four cores were formylated and then end-capped with two electron withdrawing groups, IN and INCl, to give IN-TSDTP-b16 (1), IN-TSDTP-b20 (2), INCl-TSDTP-b16 (3), INCl-TSDTP-b20 (4), IN-BDTP-b16 (5), IN-BDTP-b20 (6), INCl-BDTP-b16 (7), and INCl-BDTP-b20 (8).
Furthermore, BDTP-based quinoid, BDTPQ-b16 (9), was synthesized for OTFT application.
Finally, three new DPT-based HTLs with three different chains, b-C8H17, b-C16H33, and b-C20H41, were synthesized to give DTP-2D-b8 (10), DTP-2D-b16 (11), and DTP-2D-b20 (12), respectively. Currently, DTP-2D-b8 and DTP-2D-b16 based pervoskite solar cell exhibit power conversion efficiency of 13.60% and 13.91%, respectively.
The optical and electrochemical properties (HOMO and LUMO) of these new materials were characterized by UV-vis and DPV. Thermal properties were investigated by DSC and TGA. Optoelectronic devices used these new developed small molecules are under optimization. |
