近年隨著鈣鈦礦太陽能電池發展迅速，電洞傳輸材料的合成也受到很大的關注，因此如何利用分子設計改善電洞傳輸材料的光電特性，使其在組裝電池後的光電轉換效率有所提升，或者利用更簡便、更綠色化學、更低成本的合成方法製備電洞傳輸材料，是在未來電洞傳輸材料的所需突破的一大課題。
本實驗利用鈀催化直接碳氫鍵芳香環化製作電洞傳輸材料，對比傳統法方法不僅減少合成步驟，提高原子效率，藉由篩選不同的配位基後得到最佳化的反應條件，另外在分子設計方面，導入相較於三苯胺平面性較高的π共軛核心－咔唑以及吩噻嗪，再以4種不同的末端基團作為推電子基，且發現產率均有不錯的表現。
而利用本實驗合成的一系列電洞傳輸材料，應用在鈣鈦礦太陽能電池上的表現，在JHC04以及JHC08其光電轉換效率達到17.57%，對比常見的電洞傳輸材料Spiro-OMeTAD光電轉換效率17.65%具有並駕齊驅的表現。

In recent years, the perovskite solar cell have become hottest topic in photovoltaics because of their excellent intrinsic properties. So the hole transporting marterial is also much concerned with many scientists. How to promte the power conversion efficiency and reduce the synthetic steps is becoming more and more important.
Our team first use the C-H arylation on the hole transporting material in 2017. Not only reduced the synthetic procedures compare traditional synthetic but also rose the atom efficiency and more green chemistry.
This work we optimized the C-H arylation step, and change the more planar core relative triphenylamine. By using the carbazole and phenothiazine derivatives which are presence of a π-bridge between the donor groups. Then we can get the high isolated yield 45%~66%.
In addtion we apply these carbazole and phenothiazine based hole transporting material on the perovskite solar cell. We also get the nice power conversion efficiency to 17.5% in JHC04 and JHC08 that is as well as the Spiro-OMeTAD which is the most widely used HTM.

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