| Summary: | 博士 === 國立臺灣大學 === 化學研究所 === 101 === Increasing energy demands and concerns about global warming have been driving a great need to develop environmentally friendly renewable energy resources in the past few decades. Conversion of solar energy into electricity via photovoltaic technologies provides a sustainable approach to addressing these issues. Both dye-sensitized solar cells (DSSCs) and organic solar cells (OSCs) have been regarded as highly promising and cost-effective alternatives to the market dominant silicon-based counterparts.
This dissertation describes my research efforts in the design, synthesis, and characterization of small-molecule and polymeric materials for DSSCs and OSCs, with the focus on the exploration of structure–property relationships and their correlations to device performance. It is organized as follows. Chapter 1 gives a brief overview of bandgap engineering of pi-conjugated aromatic systems. Chapter 2 deals with the design principles, synthesis, and characterization of three series of organic sensitizers as well as their application in DSSCs. Chapter 3 describes eight small-molecule donor materials for use in vacuum-deposited OSCs. Their synthesis, physical properties, and photovoltaic performance are discussed. Chapter 4 describes the synthesis and optoelectronic characterization of two p-type conjugated polymers as well as their use as donors in solution-processed polymer bulk heterojunction solar cells. Furthermore, a short summary of state-of-the-art photosensitizers for DSSCs as well as molecular donors and polymeric donors for OSCs is respectively presented in the beginning of Chapter 2, 3, and 4.
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