Facile synthesis of benzothiadiazole-based chromophores for enhanced performance of second-order nonlinear optical materials

被引：21

作者：

Li, Ming ^{[1
]}

Zhang, Hui ^{[1
]}

Zhang, Yan ^{[1
]}

Hou, Baoshan ^{[1
]}

Li, Chuangyang ^{[2
]}

Wang, Xibin ^{[3
]}

Zhang, Ji ^{[1
,4
]}

Xiao, LingHan ^{[1
]}

Cui, Zhanchen ^{[2
]}

Ao, Yuhui ^{[1
]}

机构：

[1] Changchun Univ Technol, Jilin Prov Key Lab Carbon Fiber Dev & Applicat, Coll Chem & Life Sci, Changchun 130012, Peoples R China

[2] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China

[3] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China

[4] Northeast Normal Univ, Fac Chem, Inst Funct Mat Chem, Changchun 130012, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2016年 / 4卷 / 38期

基金：

中国国家自然科学基金;

关键词：

SENSITIZED SOLAR-CELLS; ELECTROOPTIC ACTIVITY; THERMAL-STABILITY; PHOTOPHYSICAL PROPERTIES; 2ND-HARMONIC GENERATION; AUXILIARY DONOR; MOLECULES; DENSITY; POLYMERS; ACCEPTOR;

D O I：

10.1039/c6tc02964g

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel benzothiadiazole-based second-order nonlinear optical (NLO) chromophores with different push-pull structures were developed. Incorporation of benzothiadiazole (BTD) as a bridge for improving the electrooptic (EO) coefficient (r(33)) of bulky materials has not been well investigated, despite its extensive application in other photonic materials as electron acceptor. NMR and MS have been used to characterize the structure of synthesized chromophores 5-7. Optical properties have been investigated by UV-vis spectra. Density functional theory calculations have been used to calculate the first-order hyperpolarizability (beta) of chromophores r1, 5a, 7a and 5b. Moreover, the poling results of guest-host EO polymers, 5a/PC and 5b/PC, afforded good r(33) values of 67 pm V-1 and 45 pm V-1, respectively. All the results demonstrated an improvement in both micro-and macroscopic nonlinearity after incorporation of BTD into chromophores.

引用

页码：9094 / 9102

页数：9

共 53 条

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