Strategies for Optimizing the Performance of Cyclometalated Ruthenium Sensitizers for Dye‐Sensitized Solar Cells
作者:Paolo G. Bomben、Kim D. Thériault、Curtis P. Berlinguette
DOI:10.1002/ejic.201001345
日期:2011.4
groups to ensure a sufficiently high oxidation potential for dye regeneration in the DSSC; and (iii) a 2,2′-bipyridine (bpy) ligand. UV/Vis and electrochemical data reveal that each complex exhibits broad metal-to-ligand charge transfer (MLCT) bands of significant intensity (ϵ = 1.0–2.3 × 104M–1 cm–1) in the visible region, and ground- and excited-state redox potentials that are appropriate for sensitizing
根据我们优化染料敏化太阳能电池 (DSSC) 中环金属化 Ru 敏化剂性能的目标,报道了一系列三杂配 RuII 配合物的理化性质。这些复合物中的每一种都含有通过以下方式连接的金属: (i) 二齿 2,2'-联吡啶-4,4'-二羧酸 (dcbpy) 配体以将染料固定到 TiO2 表面;(ii) 环金属化配体——具有吸电子基团,以确保 DSSC 中染料再生所需的足够高的氧化电位;(iii) 2,2'-联吡啶 (bpy) 配体。UV/Vis 和电化学数据表明,每个配合物在可见光区域都表现出宽的金属到配体电荷转移 (MLCT) 带,强度显着 (ϵ = 1.0–2.3 × 104M–1 cm–1),并在地面和激发- 状态氧化还原电位适合敏化 TiO2。