Spindle‐Type Conjugated Compounds Containing Twistacene Unit: Synthesis and Ultrafast Broadband Reverse Saturable Absorption

Wu, Xingzhi; Xiao, Jinchong; Sun, Rong; Jin, Tongxing; Yang, Junyi; Shi, Guang; Wang, Yuxiao; Zhang, Xueru; Ye, Song

doi:10.1002/adom.201600712

Cited by 57 publications

(36 citation statements)

References 40 publications

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“…Crystal data and structure refinement for DBD and BBD, 1 H NMR spectrum of DBD and BBD, 13 C NMR spectrum of DBD, high-resolution MS data for DBD and BBD, DFT computations (the geometrical structural and Cartesian coordinates of the DBD and BBD at the ground state and excited state) (PDF) Crystallographic data (CIF) (CIF)…”

Section: * S Supporting Informationmentioning

confidence: 99%

Controlling the Growth of Molecular Crystal Aggregates with Distinct Linear and Nonlinear Optical Properties

Luo

Yuan

et al. 2017

ACS Appl. Mater. Interfaces

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Two novel donor-acceptor molecules, 2,7-diphenylbenzo[1,2-b:4,3-b']difuran-4,5-dicarbonitrile and 2,7-bis(4-methoxyphenyl)benzo[1,2-b:4,3-b']difuran-4,5-dicarbonitrile containing cyano group as the electron acceptor, were synthesized. Their single-crystal structures, molecular packing, and self-assembly behaviors were also investigated. By simple solvent evaporation techniques, these compounds self-assemble into various low-dimensional microstructures that demonstrate distinctive nonlinear optical properties depending on the orientations of their transition dipoles. This study highlights the importance of the transition dipole moment in the construction of low-dimensional molecular materials with highly efficient nonlinear optical properties.

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Section: * S Supporting Informationmentioning

confidence: 99%

Controlling the Growth of Molecular Crystal Aggregates with Distinct Linear and Nonlinear Optical Properties

Luo

Yuan

et al. 2017

ACS Appl. Mater. Interfaces

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“…Conjugated organic molecules have attracted much attention in the field of non-linear optics due to their large non-linear coefficients, ultrafast response rates, large damage thresholds, easy processing, and significant improvement in molecular optical properties through simple substituent changes (Gu et al, 2016 ; Wu et al, 2017a ; Wei et al, 2020 ). The intriguing non-linear optical properties of an organic compound are correlated to its conjugated molecular structure (Kim and Cho, 2009 ; Xiao et al, 2016 ; Sadowski et al, 2017 ; Wu et al, 2017b ). Hence, it is of great importance to establish the relationship between molecular structure and non-linear optical properties.…”

Section: Introductionmentioning

confidence: 99%

Tunable Non-linear Refraction Properties and Ultrafast Excited State Dynamics of Dicyanomethylene Dihydrofuran Derivative

Yang

Wei

et al. 2020

Front. Chem.

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The third order non-linear optical response of a dicyanomethylene dihydrofuran compound (DCDHF-2V) was investigated using a Z-scan technique in picosecond and nanosecond time regimes. The results show that DCDHF-2V has excellent excited state non-linear refraction properties on both time regimes, and the non-linear refraction index is also solvent-dependent in the nanosecond regime. The excited state relaxation dynamics of DCDHF-2V were demystified via femtosecond transient absorption spectroscopy. The TA spectra reveal that the solvent viscosities have a substantial impact on the excited state relaxation of DCDHF-2V. The exotic photophysical phenomena in DCDHF-2V reported herein can shed new light on future development of small organic non-linear optical materials with large non-linear coefficients and fast response.

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“…However, the NLO properties of twistacene and its derivatives have been relatively unexplored, but are highly valued for broadening their applications in the fields such as photonic devices and NIR bio-imaging. Recently, we found that twistacene derivatives are promising NLO materials by studying their third-order nonlinear optical two-photon absorption (TPA) properties in solution using the Z-scan technique [44,45], where the as-synthesized spindletype molecules exhibited a broadband optical limiting capability that the wavelength could range from 500 nm to 1000 nm exposing to femtosecond, picosecond and nanosecond laser pulses. Here, we are more interested in the solid state NLO responses of the twistacenes and their derivatives.…”

Section: Introductionmentioning

confidence: 99%

Functionalized twistacenes for solid state nonlinear optical materials

Zhai

Jin

et al. 2018

Dyes and Pigments

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Spindle‐Type Conjugated Compounds Containing Twistacene Unit: Synthesis and Ultrafast Broadband Reverse Saturable Absorption

Abstract: Scheme 1. Molecular structures of DBPy, DPyE, DPyA, and DPDA. Scheme 2. Synthesis of DPyE and DPDA.

Cited by 57 publications

References 40 publications

Controlling the Growth of Molecular Crystal Aggregates with Distinct Linear and Nonlinear Optical Properties

Controlling the Growth of Molecular Crystal Aggregates with Distinct Linear and Nonlinear Optical Properties

Tunable Non-linear Refraction Properties and Ultrafast Excited State Dynamics of Dicyanomethylene Dihydrofuran Derivative

Functionalized twistacenes for solid state nonlinear optical materials

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