全球的電力，約80%都還是經由火力來發電，而燃燒所產生的二氧化碳，造成溫室氣體效應，氣候變遷、空氣污染問題以及資源日趨短缺之故，而早在1970年代，美國太空就已有太陽能發電做為動力供應主要來源，太陽能的優點是取之不竭除了夜晚，這也是近年以矽晶圓為主的太陽能電池市場快速成長的原因。 然而矽晶圓為主的太陽能發電技術其成本畢竟高出傳統電力產生方式甚多，因此目前市場仍只能侷限於特定用途，也因此世界上主要的研究單位，均致力於投入太陽能相關技術的研究，企求開發出新的物質，能降低產品成本並提升效能。
薄膜式太陽能電池由於只需使用一層極薄光電材料，相較於矽晶圓必須維持一定厚度而言，材料使用非常少，而且由於薄膜是可使用軟性基材，應用彈性大，如果技術能發展成熟，相信其市場面將較矽晶方式寬廣許多。
本論文的主要研究內容在低成本染敏式太陽能電池裡的染料材料及離子液體為主的電解液對轉換效率的影響，為了提升太陽能的利用效率可以從多方面下手，在實驗研究內，希望從開發新穎低成本的染料材料及電解液的部分著手，染料的設計影響到整體電子跳躍的過程及電荷再結合的速度，希望能夠設計出性質較穩定，轉換效率佳並且便宜的材料，電解液的部份運用室溫離子溶液其環保、無毒性及優越的導電性等等優點，設計出高效率之電解液。希望可以發展出價格便宜、高轉換效率及堅固耐用的敏染式太陽能電池。
本論文的研究成果：(1)我們開發了僅有十分之ㄧ價格的染料，進而得到約6%的光電轉換效率。(2)加入奈米核殼材料增加導電度及降低黏度，使染料激發的電子在太陽電池的傳遞過程中減少損失，組裝成為電池之後能夠增加約40%轉換效率。(3)Diels Alder反應將五苯素帶進低價且高產率的製程。

Nowadays nearly 80% of the global electricity is produced by coal-fired power generation. Since coal-fired power generation would impose a severe negative effect on the environment due to the carbon dioxide emissions, cleaner technologies are desired. The current energy system will come to find a renewable energy sources - solar energy. The sun is the Earth's ultimate energy resource, and it is inexhaustible as long as the solar system exists. Therefore, it is very likely that the future of our energy needs depend on the renewable solar energy resource. “Classical” silicon photovoltaic cells (PVCs) have an excellent performance, for instance, single-crystal silicon cells have a energy conversion efficiency as high as 24.7%. However, the PVCs are much more expensive than traditional fuel energy.
Silicon solar panels are still costly, bulky, and brittle. Scientists are continuously searching for low-cost, miniature photovoltaic technologies. Thin, flexible, film-like dye-sensitiezed solar cells (DSSCs) is becoming to be the trend of commercial production.
This research addresses the development of new dyes and electrolytes for low-cost DSSC application. Mass application of DSSCs is currently limited by manufacturing complexity and long-term stability associated with the liquid redox electrolyte used in the cells. As part of development of a stable electrolyte system, ionic liquid have been screened as promising electrolytes due to their non-volatility, good ionic conductivity, good thermal stability, and large electrochemical window. These properties favor the construction of efficient, and robust DSSCs.
The main objective in this study are: (1) synthesis of new low-cost organic dyes, (2) increase the module DSSC efficiency by dispersing carbon/metal core-shell nanoparticles in ionic liquid electrolytes, and (3) using Diels-Alder reaction to greatly improve the yield of synthesizing soluble pentacene precursor that can be used in the fabrication of high performance, solution processed (spin-coated) OTFTs.

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