A new donor-acceptor crosslinkable l-shape chromophore for NLO applications

被引：16

作者：

Panunzi, Barbara ^{[1
]}

Diana, Rosita ^{[1
]}

Tuzi, Angela ^{[2
]}

Carella, Antonio ^{[2
]}

Caruso, Ugo ^{[2
]}

机构：

[1] Univ Napoli Federico II, Dept Agr, Portici, NA, Italy

[2] Univ Napoli Federico II, Dept Chem Sci, Naples, Italy

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2019年 / 1189卷

关键词：

L-shape; Crosslinkable; NLO chromophore; D-PI-A; NONLINEAR-OPTICAL PROPERTIES; 2ND-HARMONIC GENERATION; ELECTROOPTIC ACTIVITY; ORGANIC-DYES; POLYMERS; DESIGN; ABSORPTION;

D O I：

10.1016/j.molstruc.2019.04.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new nonlinear-optical (NLO) chromophore containing L-Shape 2-benzofuranyldiazene in pi-electron bridge has been synthetized and its chemical and thermal properties examined. Evaluation of the second order NLO properties was performed by EFISH measurements of mu beta on chloroform solution and by SHG measurements on amorphous spin-coated thin films obtained from a blend of polymer and chromophores crosslinked "in situ". The value of 830.10(-48) esu for mu beta measured on the dye and of 10 pm/V for the d(33) for the poled network are in medium range for similar systems, confirming the proper employ of the molecule to build NLO active networks. The crystal structures dye and its precursor examined by single-crystal analysis show a planar geometry and bond lengths pattern confirm the push pull L-shape nature of the D-pi-A systems. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：21 / 27

页数：7

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