| 摘要: | 本論文主要分為有機薄膜電晶體 (OTFT) 與鈣鈦礦太陽能電池 (PSC) 材料之開發。
在OTFT的部分，主要以噻唑併噻唑 (thiazolo[5,4-d]thiazole, TTz) 為核心，先接上帶硫醚鏈噻吩 (thioalkylated bithiophene, SBT) 作為 π-spacer，再外接拉電子單元二氰乙烯基 (dicyanovinyl, DCV)，製備出 DCV-SBT-TTz (1)化合物作為有機薄膜電晶體 (OTFT) 材料。
另外，本研究亦製備四種新型高分子材料以及兩種小分子材料作為錫鈣鈦礦太陽能電池中的電洞傳輸層 (HTL)，合成出3-SBT-BT2D (4)、5-SBT-BT2D (5)、3-BT-BT2D (6)、5-BT-BT2D (7)，本研究將 SBT-TTz 為核心以D-A-D 設計,兩側外掛推電子基團 (Triphenylamine, TPA)，開發出小分子DSBT-TTz-2D (2)，同時合成出 DSBT-TTz-4D (3) 進行比較，DSBT-TTz-2D (2)作為電洞傳輸層應用於 Pb-based 的鈣鈦礦太陽能電池目前初步測試具有 17.47% 之光電轉換效率。
而上述之新材料的電化學及光學性能 ( HOMO / LUMO 與 Eg ) 已藉由DPV及UV-Vis測定，材料之熱穩定性已透過TGA與DSC檢測，這些新開發的有機分子材料正在進行其相關元件之優化。
;A series of new organic optoelectronic materials and hole transporting materials were synthesized and characterized for use in organic thin film transistors (OTFTs) and Perovskite solar cells.
In this study, DCV-SBT-TTz (1) was synthesized as the material for OTFTs, utilizing thiazolo[5,4-d]thiazole (TTz) as a central core, two thioalkylated bithiophene (SBT) units as the π-spacer, and dicyanovinyl (DCV) as the electron-withdrawing group.
The two small HTL were designed based on the D-A-D concept, where the SBT-TTz core was end-capped with a triphenylamine (TPA) unit DSBT-TTz-2D (2), and DSBT-TTz-4D (3) for lead perovskite solar cells (Pb-PSCs).
Furthermore, four new polymeric materials were prepared as hole-transporting layers (HTLs) for tin perovskite solar cells (TPSCs). These materials include 3-SBT-BT2D (4), 5-SBT-BT2D (5), 3-BT-BT2D (6), 5-BT-BT2D (7).
The chemical structures were determined through 1H NMR, 13C NMR, and mass spectrometry. Thermal properties were investigated using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The optical and electrochemical properties of these newly developed compounds were characterized using UV-vis spectroscopy and differential pulse voltammetry (DPV).
Recently, DSBT-TTz-2D (2) is being used as a hole transport layer in lead-based perovskite solar cells, demonstrating a photovoltaic conversion efficiency of 17.47%.
Currently, efforts are underway to optimize optoelectronic devices based on these new hole transporting materials and organic polymers. |
