在能源短缺以及環保意識逐漸增強的時代中，再生能源的利用成為了重要的議題，太陽能可說是最為人所重視，並且發展也較成熟。鈣鈦礦太陽能電池的發展，在近10年內光電轉換效率從4%成長到25%，對於電洞傳輸層的研究也是十分重要的，一種好的電洞傳輸材料，能有效提取電荷，進而提升器件的光電轉換效率。 本篇分為兩主題，主題(I)為設計以三聯噻吩（2,2′:5′,2"-terthiophene）為主體之電洞傳輸材料DI101, DI102，藉由改變推拉電子基，觀察其對光電轉換效率的影響。DI系列材料為非晶態物質，並且有好的熱穩定性，及與鈣鈦礦吸光層能階有好的匹配，非常具有潛力成為良好的電洞傳輸材料。 主題(II)為承襲實驗室萬駿學長所合成出的WWC103，並且將末端acceptor group修飾成donor group，使分子呈D-π-D形式之電洞傳輸材料XCL106，XCL106顯示出良好的熱穩定性，溶解度，電荷傳輸能力，並且能與鈣鈦礦吸光層的能階有好的匹配，非常具有潛力成為良好的電洞傳輸材料。 ;In the era of energy shortages and increasing awareness of environmental protection, the use of renewable energy has become more important issue. Solar Cell is taken more and more seriously and its development has gradually matured. The power conversion efficiency(PCE) of perovskite solar cells has grown from 4% to 25% in the past few years. To improve the PCE, development of hole transporting material(HTM) which has excellent ability of positive charge extraction and transportation is one of the important factors. This article is divided into two themes. Topic(I) is synthesized two terthiophene-based hole transporting materials named DI101, DI102, and observe the effect on the PCE by changing the donor group and acceptor group. The compounds of DI series exhibit amorphous property and have good thermal stability. However, DI series which have good match with the energy level of perovskite, gives it potential as a promising HTM for the further advance of PSCs. Topic (II) is inherited from Wan Chun’s project. We modified WWC103’s terminal group into a donor group, so that the molecule is in the form of D-π-D hole transporting material XCL106. XCL106 shows good thermal stability, solubility, and charge transport capacity. The better performance gives it potential as a promising HTM for the further advance of PSCs.
