三种不同碳链长度的双偶极半菁衍生物与WO_3胶体粒子的静电自组装膜  

Three Electrostatically Self-assembled Multilayer Films Prepared from Bipolar Hemicyanines and WO_3 Colloidal Particles

作　　者：邹旭[1,2] 范娅[2] 庄敏阳[2] 彭景[2] 高丽华[1] 王科志[2] 

机构地区：[1]北京工商大学化学与环境工程学院,北京100037 [2]北京师范大学化学学院,北京100875

出　　处：《化学学报》2010年第21期2250-2252,共3页Acta Chimica Sinica

基　　金：国家自然科学基金(Nos.20971016,20771016,90922004,20871011);北京市自然科学基金(No.2092011);北京师范大学自主科研基金(No.2009SC-1)资助项目

摘　　要：通过交替吸附纳米级的WO3胶体粒子和3种分别含1个,3个和6个亚甲基碳链的双偶极半菁制备了新颖的无机-有机杂化自组装多层膜,并通过紫外-可见光谱和光电化学对薄膜进行了研究.结果表明这种WO3/半菁静电自组装多层膜可被均匀沉积,与文献报道的半菁分子Langmuir-Blodgett膜相比,具有制备简单、红移的可见吸收峰和含3个亚甲基碳链的双偶极半菁光电信号强的优点.Three electrostatically self-assembled multilayer films were prepared by alternative adsorption of WO3 and three dipolar hemicyanine derivatives carrying one,three and six CH2,respectively and studied by UV-vis absorption spectroscopy and photoelectrochemistry.The films were uniformly deposited up to at least 12 layers,and have advantages of ready preparation,bathochromically shifted visible absorption bands and large photoelectric signals for the three CH2-containing hemicyanines,over previously reported Langmuir-Blodgett films of analogous hemicyanines.

关 键 词：半菁 三氧化钨 自组装膜 紫外可见光谱 光电性质 

分 类 号：O484.4[理学—固体物理]