Studying the fluorescence conversion in organic charge transfer cocrystals of chalcone derivatives and TCNB

Two‐photon excited chromophores are widely applied for photon upconversion in organic optoelectronics. In this work, efficient two‐photon excited fluorescence is observed from charge‐transfer cocrystals where the molecular architectures of donor and acceptor molecules are both centrosymmetric. The superior structural symmetry of cocrystals eliminates the second harmonic generation of incident near‐infrared laser. The nonlinear optical properties of cocrystals are found to be strongly correlated with the intermolecular charge‐transfer interaction, bringing a wide window of excitation wavelength for the upconverted light emission. The work demonstrates that the cocrystallization of small molecules provides opportunities for the design and synthesis of novel organic optofunctional materials.

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Efficient Two‐Photon Excited Fluorescence from Charge‐Transfer Cocrystals Based on Centrosymmetric Molecules

Dai

Zhang

Chen

et al. 2019

Advanced Optical Materials

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Synthesis, characterization, and anti-cancer activity of chalcone derivatives as-potent anaplastic lymphoma kinase inhibitors

et al. 2021

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Deep insight into the charge-transfer cocrystals: Decreasing structural overlap induced bathochromically shift emission

et al. 2023

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Studying the fluorescence conversion in organic charge transfer cocrystals of chalcone derivatives and TCNB

Abstract: Four binary co-crystals were mainly formed by halogen bonds and charge transfer interactions, which generated remarkable optical properties.

Cited by 7 publications

References 29 publications

Efficient Two‐Photon Excited Fluorescence from Charge‐Transfer Cocrystals Based on Centrosymmetric Molecules

Efficient Two‐Photon Excited Fluorescence from Charge‐Transfer Cocrystals Based on Centrosymmetric Molecules

Synthesis, characterization, and anti-cancer activity of chalcone derivatives as-potent anaplastic lymphoma kinase inhibitors

Deep insight into the charge-transfer cocrystals: Decreasing structural overlap induced bathochromically shift emission

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