有限的石油資源及對地球環境的考量,開發合適的替代能源以維持社會及經濟的穩定,太陽能的來源充足為最佳替代能源,而太陽能電池能直接將太陽光轉換為電能,具有廣泛的應用性。染料敏化太陽能電池為新一代的太陽能電池,具有造價便宜及不錯的轉換效率等優勢。 染料敏化太陽能電池運作原理為:染料吸收太陽光後電荷在染料上分離,電子傳遞到二氧化鈦上經由外電路輸出,電洞與電解液反應補充回電子完成回路。開發新的染料結構以增加對可見光區的吸收,同時降低暗電流生成及提升光電轉換效率,染料的開發顯得相當重要。本論文設計新型配位基與釕金屬進行配位,開發新釕金屬錯合物染料期許能提升染料敏化太陽能電池之光電轉換效率。
Global environment concerns and the finite nature of fossil fuels have led to a growth of interest in the development of renewable energy. In order to maintain social and economic development, the solar energy is one of the best candidates of making a suitable transition to renewable fuels. Dye-sensitized solar cells (DSSCs) are currently attracting widespread interest for the conversion of sunlight into electricity because of their low cost and high efficiency. Charge separation is initiated at the dye, bound at the interface of an inorganic semiconductor like titanium dioxide and a holetransport material like the electrolyte. Careful design of the dye can minimize loss mechanisms and improve light harvesting. We synthesized new ruthenium(II) complex dyes containing novel ligands to improve the efficiency for DSSCs.
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