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A novel photochromic fulgide based on porphyrin for nondestructive information processing

Chinese Chemical Letters 2016年第12期27卷 1767-1770页

作者： Chuan-Ming Yu Bing-Cheng Hu Zhi-Hui Gong Cheng Liu Ji-Ting Li School of Chemical Engineering Nanjing University of Science and Technology

A fulgide connected to porphyrin （FUL-TPP） can transform its open isomer to closed isomer upon the irradiation with UV or visible light. Herein, they can be used to write binary data. Furthermore, the open form can emit luminescence but the closed cannot form while irradiated in another light that will not cause the optical chemical reaction. Therefore, the data can be read out without destruction.

关键词： Photochromism fulgide Nondestructive readout Porphyrin Chemical transition

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Study on Photo-induced Electron Transfer Reaction Between Pyrryl-substituted fulgide and Tetracyanoquinodimethane

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Chinese Science Bulletin 1993年第21期38卷 1775-1778页

作者：于联合明阳福樊美公 Institute of Photographic Chemistry Academia SinicaBeijing 100101PRC National Laboratory of Applied Organic Chemistry Lanzhou UniversityLanzhou 730000PRC.

1 Introduction fulgide derivatives are well known as one kind of important organic photochromic compounds and a candidate for application to erasable optical storage materials. But there are many unsolved problems, e.g. the maximum absorption wavelength of the closed form of fulgides is not long enough to match the commercial diode laser(780-830nm). Up to now, it is very difficult for organic chemists to synthesize the qualified organic compounds.

关键词： fulgide TCNQ electron transfer ESR spectra

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fulgide Derivative-Based Solid-State Reversible Fluorescent Switches for Advanced Optical Memory

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CCS Chemistry 2022年第1期4卷 132-140页

作者： Yang Jiao Runqing Yang Yuchao Luo Leijing Liu Bin Xu Wenjing Tian State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012

Solid-state fluorescent switches with reversible luminescence characteristics have attracted considerable attention because of their broad applications in advanced photonics,such as anticounterfeiting inks,optical writing and erasing,and biological ***,we have fabricated a solid-state reversible fluorescent switch under alternating UV(365 nm)and visible light treatments based on a fulgide(FUL)-functionalized tetraphenylethylene(TPE)derivative(TPE-FUL)containing a photochromic group FUL and aggregation-induced emission(AIE)luminogen ***-FUL exhibited excellent reversible absorption and luminescence owing to the interconversion between open TPE-FUL(O-TPE-FUL)and closed TPE-FUL(C-TPE-FUL).Photophysical and theoretical investigations revealed that the luminescence of O-TPE-FUL is based on the local excited state of the TPE moiety,whereas the fluorescence quenching of C-TPE-FUL originates from the intramolecular charge transfer from the TPE to the FUL *** excellent reversible photoswitching properties of TPE-FUL in the solid state allows for its potential use in advanced optical memory applications,such as anticounterfeiting,optical writing and erasing,and information encryption.

关键词： solid-state fluorescent switch fulgide AIE anticounterfeiting information encryption

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Synthesis and applications of photochromic fulgides in optical information storages

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Science China Chemistry 1996年第1期39卷 1-6页

作者：于联合明阳福樊美公于泓涛叶倩青 Institute of Photographic Chemistry Chinese Academy of Sciences Beijing 100101 China Beijing University of Aeronautics and Aerospace Beijing 109082 China

A pyrryl substituted photocbromic fulgide, (1-p-methoxyphenyl-2-methyl-5-phenyl)-3-pyrryl-ethylidene (isopropylidene) succinic anhydride, was synthesized. Its chemical structure was identified by IR, 1H NMR MS and elemental analysis. The title compound was used to prepare the optical disks by the spin coating method and the vacuum evaporation method. The results of the static state examination show that the optical disks prepared with this kind of molecules possess excellent thermal stability and fatigue resistance, i.e. over 450 writing-erasing recycles, the relative contrast between writing state and erasing state remains at 40%.

关键词： photochromism synthesis fulgide optical information storage.

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Photoinduced anisotropy in pyrrylfulgide and its application in optical image processing and polarization holography

Photoinduced anisotropy in pyrrylfulgide and its application...

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Photonics Asia 2004:Information Processing and Data Storage

作者： Neimule Menke State Key Laboratory of Transient Optics Technology Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an710068China

Photoinduced anisotropic properties of pyrrylfulgide are studied. From measurement of the photoinduced spectrum of dichroism, the birefringence spectrum is evaluated by Kramers-Kronig relations. At op

关键词： fulgide photochromism photoinduced anisotropy optical image processing polarization holography

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