Novel second-order nonlinear optical chromophores containing multi-heteroatoms in donor moiety: Design, synthesis, DFT studies and electro-optic activities

Xu, Huajun; Zhang, Maolin; Zhang, Airui; Deng, Guowei; Si, Peng; Huang, Heyan; Peng, Chengcheng; Fu, Mingkai; Liu, Jialei; Qiu, Ling; Zhen, Zhen; Bo, Shuhui; Liu, Xinhou

doi:10.1016/j.dyepig.2013.10.042

Cited by 50 publications

(30 citation statements)

References 34 publications

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“…By contrast, the DE (CV) value of chromophore L2 is 1.52 eV. The narrower energy gap indicated easier charge transfer [29,43]. It can be concluded that the LUMO energy of chromophore L1 is 0.016 eV lager than chromophore L2 (À3.701 eV vs.À3.685 eV), while the HOMO energy of L1 is 0.104 eV larger than that of L2 (À5.104 eV vs. À5.208 eV).…”

Section: Theoretical Calculations and Redox Propertiesmentioning

confidence: 77%

“…Besides, solvatochromic behavior indicated that chromophore L1 is more polarizable than chromophore L2. Therefore, in corona poling, chromophore L1 may obtain orientation more easily in contrast with chromophore L2 [29]. The much larger r 33 value of film L1/APC may be explained by favorable poling induced acentric order which related to chromophore property, chromophore-host compatibility and so on [36].…”

Section: Electro-optic Performancementioning

confidence: 87%

“…The two chromophores exhibited good thermal stabilities with the decomposition temperatures (T d ) higher than 220 C as showed in Table 1. The chromophore L2 had the highest decomposition temperature (T d ¼ 232 C), followed by L1 (T d ¼ 223 C) which was high enough for the application in EO device preparation [29].…”

Section: Thermal Propertymentioning

confidence: 99%

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Using phenoxazine and phenothiazine as electron donors for second-order nonlinear optical chromophore: Enhanced electro-optic activity

et al. 2015

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Section: Theoretical Calculations and Redox Propertiesmentioning

confidence: 77%

Section: Electro-optic Performancementioning

confidence: 87%

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Using phenoxazine and phenothiazine as electron donors for second-order nonlinear optical chromophore: Enhanced electro-optic activity

et al. 2015

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“…Recently, it has been reported that introducing additional electron pushing groups onto phenyl donor moiety of chromophores, i.e. auxiliary electron-donating groups, is an effective protocol to balance the competition between intermolecular aggregation and planar molecular structure, meanwhile the charge transfer of chromophores could also be effectively improved [7][8][9][10][11][12]. Although the strategy of using auxiliary electron-donating group was considered as a good synthetic design for NLO materials, the comprehensive research concerning the influence of different auxiliary donor groups onto chromophore's molecular second order nonlinear polarizability was virtually unexplored.…”

Section: Introductionmentioning

confidence: 99%

Effect of auxiliary electron-donating group on the microscopic nonlinear optical properties of vinyl and azobenzene based chromophores

Tang

Jia

Tang

et al. 2016

J Mater Sci: Mater Electron

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A series of organic nonlinear optical chromophores containing different auxiliary electron-donating groups (alkoxy, benzyloxy and alkyl) and p-conjugated bridges (vinyl and azobenzene) have been synthesized and systematically characterized using UV-Vis spectroscopy, density functional theory calculation and thermogravimetric analysis. The microscopic molecular hyperpolarizability was obtained via the simple solvatochromism method, where the synthesized chromophores were dissolved in several solvents with different refractive index for absorption spectra measurement. It was found that the introduction of auxiliary groups obviously improved the microscopic molecular hyperpolarizability of all the synthesized chromophores, especially for the benzyloxy modified azobenzene based chromophore, up to sevenfold enhancement of molecular hyperpolarizability as well as good visible light transmittance and thermal stability up to 247°C were obtained, which should be mainly attributed to the enhanced charge transfer enabled by the benzyloxy modification that is confirmed by the electron density distribution in the highest occupied molecular orbital and lowest unoccupied molecular orbital.

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“…[11][12][13][14][15] Following the eqn (3), the EO coefficients are dened prevailingly by density, rst hyperpolarizability and orientation of the NLO chromophores.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in polymer electro-optic modulators

Liu

et al. 2015

RSC Adv.

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164

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In this brief review, nonlinear optical (NLO) chromophores widely used in electro-optic (EO) devices are summarized according to their EO coefficients. The advances of EO modulators based on organic materials in high bandwidth and low half wave voltages (V p ) are discussed. The review is mainly devoted to the following aspects: (1) verification of high frequency operation and reduction of V p for all polymer waveguide EO modulators; (2) structures and advantages of sol-gel waveguide EO modulators; (3) principles and developments of silicon-organic hybrid (SOH) EO modulators. All the considerations are illustrated by the architecture of the devices and the used physical and chemical principles are explained in detail. Further means of improvement of their parameters are indicated.

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Novel second-order nonlinear optical chromophores containing multi-heteroatoms in donor moiety: Design, synthesis, DFT studies and electro-optic activities

Cited by 50 publications

References 34 publications

Using phenoxazine and phenothiazine as electron donors for second-order nonlinear optical chromophore: Enhanced electro-optic activity

Using phenoxazine and phenothiazine as electron donors for second-order nonlinear optical chromophore: Enhanced electro-optic activity

Effect of auxiliary electron-donating group on the microscopic nonlinear optical properties of vinyl and azobenzene based chromophores

Recent advances in polymer electro-optic modulators

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