Structure and photochromism of spiropyran assemblies  

作　　者：杜祖亮 赵伟利 马晓东 朱自强 明阳福 樊美公 吕安德 

机构地区：[1]Surface Science Laboratory, Henan University, Kaifeng 475001, China [2]Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing 100101, China [3]Changchun Institute of Physics, Chinese Academy of Sciences, Changchun 130021, China

出　　处：《Science China Chemistry》1995年第3期288-295,共8页中国科学（化学英文版）

基　　金：Project supported by"863"Plan, Lab. of Phys. of Excited States, Changchun Institute of Physics, and Lab. of Photocchemistry, Institute of Photographic Chemistry, CAS.

摘　　要：Nanocluster assemblies of spiropyran compounds have been prepared by means of LB technique, and the relations between the subphase, pH value, condition of preparation and the structure of the fabricated LB film are systematically investigated. The stability, photochromic fatigue properties of the spiropyran LB film, which are of primary importance in optic signal storage applications, are also studied in detail. A kind of supermolecular film with homogeneously distributed J aggregates of similar granular size has been obtained with the optical resolution in the order of micrometer. Finally, a nondestructive readout method for such an LB film to be used as the optic signal storage film is proposed.Nanocluster assemblies of spiropyran compounds have been prepared by means of LB technique, and the relations between the subphase, pH value, condition of preparation and the structure of the fabricated LB film are systematically investigated. The stability, photochromic fatigue properties of the spiropyran LB film, which are of primary importance in optic signal storage applications, are also studied in detail. A kind of supermolecular film with homogeneously distributed J aggregates of similar granular size has been obtained with the optical resolution in the order of micrometer. Finally, a nondestructive readout method for such an LB film to be used as the optic signal storage film is proposed.

关 键 词：SPIROPYRAN PHOTOCHROMISM LB technique SIGNAL storage J aggregates. 

分 类 号：O614[理学—无机化学]