新型功能聚合金属配合物的合成及其光伏性能分析-synthesis and photovoltaic performance analysis of novel functional polymeric metal complexes.docx

AbstractDye-sensitized solar cells (DSSCs) have become one of the most promising renewable and clean energy sources with the potential to be an alternative of fossil energy. The dye-sensitizer (dye) which bears the most important function of absorbing sunlight to generate and transfer electrons is the most crucial component in affecting the photovoltaic performance of dye-sensitized solar cells . It has great theoretical and practical significance to synthesize a new dye with high photovoltaic performance, low-cost and high stability. The subject of this thesis is different from the existed ruthenium metal complex dyes, metal porphyrin and phthalocyanine dyes as well as the organic dyes, we are aim to design and synthesize new polymeric metal complexes dyes that integrate inorganic, organic and macromolecule components into a whole. We have synthesized a series of new polymeric metal complexes dyes with excellent light absorption performance, high carriertransfer properties, high stability and low cost, the influences of their composition and structure on the photovoltaic performances were investigated, and the preparation methods and applications of these new excellent synthesized dyes were explored,.The details are as follows:A series of D-A and D-π-A type polymeric metal complexes dyes N1-N12 have been designed and synthesized by used zinc (II) or copper (II) phenanthroline metal complexes as the acceptor (A), p-phenylenevinylene, carbazole or fluorene derivatives as the donor (D), thienyl vinyl as π bridge, and their photovoltaic performances were characterized and analyzed. The results show that: a, D-π-A type polymeric metal complexes N7-N12 exhibit higher photo-electron power conversion efficiency(PCE) than corresponding D-A type N1-N6 (PCE above 1.0-2.5%); b, copper (II) polymeric complexes exhibit higher photo-electron power conversion efficiency than zinc (II) polymeric complexes (PCE above 0.2-0.5%); c, polymeric metal complexes with fluorene derivat