Self-Aggregation Enhanced Third-Order Optical Nonlinearities of Aryloxy Substituted Zinc Phthalocyanines  

作　　者：LI Zhong-Yu WU Chun-Hui HUANG Xin XU Song 李忠玉;吴春晖;黄新;徐松(Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology,Department of Petrochemical Engineering,Changzhou University,Changzhou 213164;Institute of Animal and Plant Quarantine of Chinese Academy of Inspection and Quarantine,Beijing 100029)

机构地区：[1]Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology,Department of Petrochemical Engineering,Changzhou University,Changzhou 213164 [2]Institute of Animal and Plant Quarantine of Chinese Academy of Inspection and Quarantine,Beijing 100029

出　　处：《Chinese Physics Letters》2013年第12期42-45,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 2077307;Program for Advantage Discipline of Changzhou University,Research Foundation for Talented Scholars of Changzhou University under Grant No ZMF11020007;Project for Six Major Talent Peaks of Jiangsu Province under Grant No 2011-XCL-004;the Natural Science Foundation of Changzhou City under Grant No CJ20115009.

摘　　要：Third-order optical nonlinearities of three aryloxy substituted phthalocyanines are measured by femtosecond forward degenerate four-wave mixing technique at 800 nm.Ultrafast optical responses are observed and the magnitude of the second-order hyperpolarizabilitiesγof the phthalocyanines is measured to be as large as 10?31 esu.Due to the enhancement of J-aggregates,theγvalue of an aryloxy substituted zinc phthalocyanine in chloroform is approximately 2.2 times larger than that of the dye in methanol.Moreover,the morphologies of aryloxy substituted zinc phthalocyanine in chloroform exhibit that the nanowires with a diameter of 50–100 nm are connected to each other to form an indefinite network structure,while no aggregates are detected when the samples are prepared from a solution in the methanol.

关 键 词：PHTHALOCYANINE SUBSTITUTED METHANOL 

分 类 号：O62[理学—有机化学]