Journal
DYES AND PIGMENTS
Volume 122, Issue -, Pages 74-84Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2015.06.007
Keywords
Nonlinear optics; Electro optics; Chromophore; D-pi-A molecule; Optical materials; Electron donor
Funding
- Directional Program of the Chinese Academy of Sciences [KJCX2.YW.H02]
- Innovation Fund of the Chinese Academy of Sciences [CXJJ-11-M035]
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Organic electro-optic (EO) materials have been widely explored and used in the fabrication of microwave photonic devices. Their principal advantages are the follows: lower half-wave voltage, wider bandwidth, lower cost and more convenience of integration. Organic second order nonlinear optical (NLO) chromophores, as the core of the organic EO devices, define the key technological parameters: EO efficiency, long term stability, solubility and optical losses. In the present review article, the use of D-pi-A chromophore molecules with polycyclic electron donors based on julolidinyl structure is reported and discussed. Significant improvement of electron donating ability and appropriate isolated effect are shown. Future perspectives of the application of such kind of NLO chromophores are considered. (C) 2015 Elsevier Ltd. All rights reserved.
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