Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Engineering of organic chromophores with large second-order optical nonlinearity and superior crystal growth ability
Authors : Chen, Honghong
Ma, Qi
Zhou, Yuqiao
Yang, Zhou
Jazbinsek, Mojca
Bian, Yongzhong
Ye, Ning
Wang, Dong
Cao, Hui
He, Wanli
DOI : 10.1021/acs.cgd.5b01216
Published in : Crystal Growth & Design
Volume(Issue) : 15
Issue : 11
Pages : 5560
Pages to: 5567
Issue Date: 2015
Publisher / Ed. Institution : American Chemical Society
ISSN: 1528-7483
Language : English
Subject (DDC) : 540: Chemistry
Abstract: We present two D-π-A organic cationic core structures leading to highly efficient nonlinear optical (NLO) salts (E)-2-(4-(dimethylamino)styryl)-1,1,3-trimethyl-1H-benzo[e]indol-3-ium iodide (P–BI) and (E)-2-(2-(5-(dimethylamino)thiophen-2-yl) vinyl)-1,1,3 -trimethyl-1H-benzo[e]indol-3-ium iodide (S–BI). Single crystals of the above two materials were successfully obtained by the slow evaporation method. Two different polymorphic crystals of both P–BI and S–BI were obtained from different polar solvents. Kurtz powder tests revealed that the maximum second harmonic generation (SHG) efficiency of P–BI with monoclinic space group P21 is 1.14 times the benchmark DAST(4-N,N-dimethylamino-4,-N,-methylstilbazolium tosylate). Bulk single crystals of P–BI were obtained with size of up to 17.0 × 6.0 × 2.0 mm3 without using seed crystals. This demonstrates that this material exhibits great crystal growth ability along with a high second-order optical nonlinearity, making it a very attractive candidate for NLO applications such as electro-optics and THz-wave generation.
Fulltext version : Published version
License (according to publishing contract) : Licence according to publishing contract
Departement: School of Engineering
Organisational Unit: Institute of Computational Physics (ICP)
Appears in Collections:Publikationen School of Engineering

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