以重氮树脂与4-甲酰基苯甲酸为底层构筑三联吡啶-钌离子层-层自组装超薄功能膜

在呈负电性的基底表面依次使用重氮树脂(DR)、4-甲酰基苯甲酸(FBA)和4-′(4-氨基苯基)-2,2′:6′,2″-三联吡啶(Atpy)进行修饰,在先后经过离子键转变为共价键和希夫碱反应后,实现了2,2′:6′,2″-三联吡啶基团在基片表面的锚定;然后基于配位作用,由1,4-二(2,2′:6′,2″-三联吡啶-4′-基)苯(Bi-tpy)与RuCl3在其表面构筑具有纳米尺寸的金属-有机超分子超薄膜.紫外-可见光谱、AFM均证明了这种层层自组装超薄膜的成功形成.光电转换显示其具有良好的光电转换性能和光化学稳定性,其转换效率与膜的厚度呈现较好的线性关系.

FABRICATION AND OPTOELECTRONIC CONVERSION OF LAYER-BY-LAYER SELF-ASSEMBLY FILMS BASED ON TERPYRIDINES AND METAL IONS ON SURFACE OF SUBSTRATE MODIFIED BY DIAZORESIN AND 4-FORMYLBENZOIC ACID

To enhance the stability of the layer-by-layer(LBL) self-assembled films fabricated from terpyridines and ruthenium ions,a new method of introducing mono-terpyridinyl groups onto the surface of substrates was designed in this paper.First,diazoresin(DR) and sodium salt of 4-formylbenzoic acid(FBA) were successively deposited on the surface of substrate by self-assembly(SA) technique.Following decomposition of the diazonium group in DR under UV irradiation,the ionic bonds between substrate,DR and FBA were syn...