The present work deals with the design and synthesis of new organic sensitizers for the development of dye sensitized solar cells (DSSC). The oxindoles are natural indole alkaloids and are ubiquitous within the pharmaceutical industry. The following parts of this thesis regard with unprecedented incorporation of oxindoles as the novel building block for the development of new organic sensitizers. As a part of on-going research, alternating the molecular engineering and developing new strategies for utilization of such oxindole dyes to achieve higher light conversion efficiency was demonstrated. These strategies have so far been successful in terms of reaching respectful efficiencies for oxindole dyes in the DSSCs. Under the illumination of AM1.5 stimulated light, the highest photon-to-current conversion efficiency obtained for an oxindole dye (TI114) sensitized DSSC was 6.35%. 本文設計並合成新穎的??酮有機光敏染料，並將其應用於染料敏化太陽能電池。 ??酮是天然的???類生物鹼，普遍使用在醫藥界。本篇論文以??酮作為主體結構，設計出新穎之有機染料，是目前尚未發展的新方向。在持續的研究下，證明??酮染料之新的合成策略及結構上的修飾可達高光電轉換效率。到目前為止，此類??酮染料應用於染料敏化太陽能電池上有不錯的表現。 其中??酮染料 TI114 在AM 1.5標準照光強度下測試，可達6.35%之光電轉換效率。
