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Aggregation-induced emission on benzothiadiazole dyads with large third-order optical nonlinearity

文献类型：期刊论文

作者Chen, Songhua1,2; Qin, Zhihong1,2; Liu, Taifeng1,2; Wu, Xingzhi3; Li, Yongjun1; Liu, Huibiao1; Song, Yinglin3; Li, Yuliang1
刊名PHYSICAL CHEMISTRY CHEMICAL PHYSICS
出版日期2013
卷号15期号:30页码:12660-12666
ISSN号1463-9076
DOI10.1039/c3cp51273h
英文摘要Two kinds of D-A molecular of (4-(4-(9H-carbazol-9-yl)phenyl))-7-nitrobenzothiadiazole (BSC) and 4-((4-(9H-carbazol-9-yl) phenyl) ethynyl)-7-nitrobenzothiadiazole (BEC) containing carbazole moieties as the donor were synthesized. X-ray crystal data elucidated the multiple intermolecular interactions. They exhibit distinctly different self-assembly behaviours. The nonlinear optical properties were studied using the top-hat Z-scan technique at 532 nm with a 21 ps pulse. The results indicate that they exhibit large third-order nonlinear absorption effects. The nonlinear absorption coefficients alpha(2) fitting the experimental data are 6.3 x 10(-12) m W-1 for BSC and 3.6 x 10(-11) m W-1 for BEC. The time-resolved pump-probe results show that both nonlinear absorption and nonlinear refraction of BEC in CH2Cl2 solution have rapid optical responses, which indicate the nonlinear absorption and nonlinear refraction mechanism are excited-state nonlinear. Moreover, both of these two compounds are observed to be aggregation-induced emission (AIE) active. The aggregates of the well-formed one-dimensional microrods of BEC and BSC endow the material with potential applications in the field of optical devices.
语种英语
WOS记录号WOS:000321622500032
出版者ROYAL SOC CHEMISTRY
源URL[http://ir.iccas.ac.cn/handle/121111/42189]  
专题中国科学院化学研究所
通讯作者Li, Yuliang
作者单位1.Chinese Acad Sci, Inst Chem, BNLMS, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Songhua,Qin, Zhihong,Liu, Taifeng,et al. Aggregation-induced emission on benzothiadiazole dyads with large third-order optical nonlinearity[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2013,15(30):12660-12666.
APA Chen, Songhua.,Qin, Zhihong.,Liu, Taifeng.,Wu, Xingzhi.,Li, Yongjun.,...&Li, Yuliang.(2013).Aggregation-induced emission on benzothiadiazole dyads with large third-order optical nonlinearity.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,15(30),12660-12666.
MLA Chen, Songhua,et al."Aggregation-induced emission on benzothiadiazole dyads with large third-order optical nonlinearity".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 15.30(2013):12660-12666.

入库方式： OAI收割

来源：化学研究所

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