| 摘要: | 本論文主要分為有機光伏打電池 (OPVs) 與鈣鈦礦太陽能電池的電洞
傳輸層 (HTLs) 與添加劑材料之開發。
第一部分，以環戊烷二噻吩（CDT）為核心，接上不同的分子基團：雙併噻吩 (TT) 和 噻吩吡嗪 (TP) 以延續共軛核心，並於末端接上拉電子基團茚酮 (IN)、二氯茚酮 (INCl) 和 二氰乙烯基 (DCV)，製備出四個新型光
電材料 : IN-TT-CDT-b8 (1)、INCl-TT-CDT-b8 (2)、DCV-TT-CDT-b8 (3) 及DCV-TP-CDT-b8 (4)。此四種新開發之 NFA 材料不僅能應用於 OPV，也能作為添加劑應用於鈣鈦礦太陽能電池。
第二部分，以 TP 單元為核心，並以 D-π-A 的分子設計為目標，成功
開發出兩個電洞傳輸材料。首先於一側接上三苯基氨 (TPA) 基團，並於另
一側接上錨定基團 (anchoring group) : 氰乙酸乙烯基 (CA) 和二氰乙烯基(DCV)，製備出兩個新型電洞傳輸材料 TP-CA (5) 和 TP-MN (6)，以應用在鈣鈦礦太陽能電池。
這些新材料 皆透過 UV-vis 及 DPV 測量其光學及電化學性質(HOMO、LUMO 與能隙)，且經 DSC 及 TGA 測量其熱穩定性。這些新開發有機光電材料正進行相關的元件測試。
;Various organic optoelectronic materials were newly synthesized and characterized for the applications in organic photovoltaic cells (OPVs) and perovskite solar cells (PSCs).
At first, central cyclopentadithiophene (CDT) unit was coupled with two different π-spacers, 2-hexylthienothiophene (TT) and 2,3-bis(4-(octyloxy)phenyl)thieno[3,4-b]pyrazine (TP) to give conjugated TT-CDT and TP-CDT moieties. Then, the latter were end-capped with electron-withdrawing groups, such as dicyanomethylene indanone (IN), dichlorodicyanomethylene indanone (INCl), and dicyanovinyl (DCV), yielding four final compounds, IN-TT CDT-b8 (1), INCl
-TT-CDT-b8 (2), DCV-TT-CDT-b8 (3) and DCV-TP-CDT b8 (4), respectively. In addition to the application in OPVs, these newly developed non-fullerene acceptors could also be used as passivating agents in PSCs based on our recent studies.
Further, D-π-A based new hole-transporting materials, TP-CA (5) and TP MN (6), were developed for application in Sn-PSCs.
The optical and electrochemical properties of these newly developed compounds were characterized by UV-vis spectroscopy and DPV. Chemical structures were characterized by 1H NMR, 13C NMR and mass spectrometry. Thermal properties were investigated by DSC and TGA. At present,
optoelectronic devices based on these new non-fullerene acceptors and hole
transporting materials are under optimization. |
