合成金屬高分子及金屬樹枝狀分子做為太陽能電池之應用

Abstract

本計畫將經由釕(Ru)及其他金屬離子與含雜環結構之bipyridyl 及 terpyridyl 配子進 行配位反應以合成新穎金屬主鏈型高分子及金屬樹枝狀分子。另將合成具有bipyridyl 配子相似結構之小分子Ru 配位錯合物，以比較其與金屬高分子之太陽能電池性質的差 異。多種新型的terpyridyl 配子包含電子予體(donor)及受體(acceptor)單元，如電子予體/ 受體區塊(blocks)及外圍含thiophene 扇狀結構，亦將被合成並與不同個數Ru 金屬配位 成含單、雙、及參金屬之樹枝狀分子(single-, double-, or triple-metallo-dendrimers)。這些 金屬主鏈型高分子及金屬樹枝狀分子將被開發做為太陽能電池材料之應用。以此類合成 之配位高分子組裝成總體異質界面高分子太陽能電池(bulk heterojunction polymer solar cell)與光敏太陽能電池 (dye-sensitized solar cell)元件之伏安電池將被探討。

This project will mainly focus on the syntheses of novel metallo main-chain polymers and metallo-dendrimers through the coordination of metal (e.g., ruthenium and the other) ions with several bipyridyl or terpyridyl ligands incorporated with conjugated heterocyclic structures. Small molecules of analogous Ru coordination complexes containing bipyridyl ligands will be synthesized to compare their solar cell properties with those of metallo-polymers. Various new terpyridyl ligands containing electron donor and acceptor moieties, including electron donor/acceptor blocks and peripheral thiophene dendrons, will be synthesized and coordinated with different numbers of metal (e.g., Ru) ions to form novel single-, double-, or triple-metallo-dendrimers. The applications of these novel metallo main-chain polymers and metallo-dendrimers in solar cell materials, will be developed. Photovoltaic cells based on the synthesized coordination polymers assembled into bulk heterojunction polymer solar cell and dye-sensitized solar cell (DSSC) devices will be investigated.