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[Lecture Notes in Electrical Engineering] Advances in Graphic Communication, Printing and Packaging Volume 543 (Proceedings of 2018 9th China Academic Conference on Printing and Packaging) || Application of Anthracene-Based Fluorescent Materials on Green Fluorescent Inkjet Ink
摘要： Presently, the existing green ?uorescent materials are rare earth luminescent material, which cannot reach the requirement of inkjet ink on dispersion and stability because of the inferior solubleness. In this paper, the ?uorescent inkjet inks were prepared by anthracene-based derivatives, ink’s printability was tested and the relationship between molecular structure and ink’s printability was researched systematically. Finally, the optimal formula of green ?uorescent inkjet ink was obtained. The results showed the photophysical properties of proofs a–c had obvious change comparing with inks a–c and the contact angle of ink d was the biggest of all due to the planar construction of ?uorescent material with large conjugate degree. The green ?uorescent material: 9, 10-bis (4-methoxyphenylethynyl) anthracene with 0.5% and crylic acid B817 with 12% formed the optimal formula. The printing quality of ink prepared by the optimal formula can accord with the demand of digital printing quality.
关键词： Fluorescent inkjet ink,Photophysical properties,Ink’s printability,Anthracene-based ?uorescent materials
更新于2025-11-14 15:26:12
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Kinetics of singlet oxygen sensing using 9-substituted anthracene derivatives$$^{\#}$$#
摘要： Singlet oxygen (1O2), the lowest excited-state of molecular oxygen receives great attention in basic research and clinical and industrial settings. Despite several spectroscopic methods available for 1O2 sensing, fluorescence sensing receives great attention, for which many fluorogenic sensors based on substituted anthracene are reported. Nonetheless, the roles of substituents on the sensing efficiency, in terms of detection time, remain largely unknown. In this work, we examine the 1O2 sensing efficiency of a fluorescence sensor based on a coumarin–anthracene conjugate, which is an electron donor-acceptor dyad, and compare the efficiency with that of 9-methylanthracene. Here, 1O2 is generated using the standard photosensitizer Rose Bengal, which is followed by estimation of the rate of reaction of 1O2 to the sensor and 9-methylanthracene. The second order reaction rate of the sensor is an order of magnitude less than that of 9-methylanthracene. The lower reactivity of the sensor to 1O2 suggests that the roles of substituents, such as electronic interactions, steric interactions and the reactivity of precursor complexes, on sensing efficiency should be carefully considered during construction of fluorogenic molecular sensors.
关键词： photochemistry,reaction kinetics,anthracene,fluorescence sensing,Singlet oxygen
更新于2025-09-23 15:23:52
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A new asymmetric anthracene derivative with high mobility
摘要： An asymmetric anthracene derivative (4-HDPA) was designed and synthesized. With the optimization of proper scenario of fabrication process, top-contact thin film devices based on 4-HDPA exhibit mobility as high as 3.59 cm2 V–1 s–1, while its single-crystal devices exhibit mobility as high as 5.12 cm2 V–1 s–1, which is higher than the symmetrical counterpart of 4-HDPA in both single-crystal and thin film devices.
关键词： organic field-effect transistor (OFET),mobility,asymmetric,anthracene derivative
更新于2025-09-23 15:23:52
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Anthracene-Attached Persistent Tricyclic Aromatic Hydrocarbon Radicals
摘要： Anthracene-attached tricyclic aromatic hydrocarbon radicals having different central polygons, Ant-5, Ant-6, and Ant-7, were synthesized to evaluate the role of an anthracene substituent group in the stability and reactivity of tricyclic aromatic hydrocarbon radicals. The bulky anthryl group effectively protects a carbon atom with high spin density, resulting in high persistence of the radicals. On the other hand, the combination of the anthryl group and the tricyclic aromatic scaffold makes the molecular structure drastically change from a twisted form to a folded form and an unpaired electron moves into the anthryl moiety, eventually affording a tail-to-tail σ-dimer.
关键词： anthracene,mechanochlomism,persistent radical,dimerization,hydrocarbon radical
更新于2025-09-23 15:23:52
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Al <sup>3+</sup> -Morpholine-appended Anthracene Ensemble as a Dual Photonic Switch for H <sub/>2</sub> PO <sub/>4</sub><sup>?</sup> and CN <sup>?</sup> Ions and its Biological Applications
摘要： A highly selective Al3+-morpholine anthracene (1(cid:129)Al3+) chelate was designed as a novel ?uorescent photonic switch for H2PO4? and CN? ions. The in situ-generated Al3+ chelate could be used to detect H2PO4? ions only in the absence of CN? ions. In contrast, CN? ions effectively extruded Al3+ from the chelate, resulting in the regeneration of probe 1 with a concomitant revival of PET, resulting in a turn-off response. By exploiting the complexation- and decomplexation-aided off–on switching system through the sequential addition of Al3+ followed by H2PO4? or CN?, combinational photonic logic circuits, as well as image-guided ?uorogenic tracking, was demonstrated.
关键词： Aluminum,Photonic switch,Morpholino-anthracene,Image-guided ?uorogenic tracking,Combinational photonic logic circuit
更新于2025-09-23 15:23:52
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A novel donor-π-acceptor anthracene monomer: Towards faster and milder reversible dimerization
摘要： A novel functional 2,6-substituted donor-acceptor anthracene derivative, bearing a long alkyl spacer and a polymerizable end-group, is synthesized from readily available compounds. This monomer possesses conjugated electron donor and acceptor moieties to achieve UV absorption and anthracene dimerization at higher wavelengths and under milder conditions, than anthracene and other reported anthracene derivatives. The compound was shown to absorb at higher wavelengths and dimerize much faster compared to most 9-substituted anthracenes. The fast photochemical and relatively slow thermal scission of the dimers were studied and related to the chemical structure, i.e. the 2,6-substitution.
关键词： 6-substituted,2,dimerization,scission.,Anthracene derivatives
更新于2025-09-23 15:22:29
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A Zn(II)/anthracene coordination polymer showing highly efficient photocatalytic Cr(VI) reduction in aqueous solution
摘要： Reaction of Zn(OAc)2·2H2O with the visible light responsive organic ligand 9,10-bis(4′-pyridylethynyl)-anthracene (BPEA) gave rise to a Zn(II)/anthracene coordination polymer [Zn(OAc)2(BPEA)]n. Compound 1 has a one-dimensional (1D) chain structure in which the binuclear {Zn2(OAc)2} cores are linked by the BPEA ligands using the pyridyl N atoms to give to the 1D ladder-like network. The as-prepared compound 1 shows broad-range visible light absorption and good water stability, which are highly demandable for its application in the photocatalysis. The photocatalytic property of 1 were investigated by reduction of Cr(VI) to Cr(III) in aqueous solution under visible light, which reveals its high efficiency and stability in this photocatalytic process.
关键词： Anthracene-based ligand,Coordination polymer,Photocatalysis,Cr(VI) reduction
更新于2025-09-23 15:22:29
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Photocatalytic Degradation of Anthracene in Aqueous Dispersion of Metal Oxides Nanoparticles: Effect of Different Parameters
摘要： Contamination with anthracene, as one of polycyclic aromatic hydrocarbons (PAHs), was considered as an important health issue due to its carcinogenic and mutagenic activity. In this paper, we focused on the photocatalytic degradation of anthracene in different media and in presence of various photocatalysts. Zinc oxide nanoparticles (ZnO NPs) and nickel oxide nanoparticles (NiO NPs) were prepared and utilized as efficient photocatalysts to convert anthracene into safer compounds. The as-prepared photocatalysts were characterized by x-ray diffraction (XRD), transmission electron microscopy (TEM) and UV-VIS spectroscopy. The factors affecting the efficiency of photocatalytic degradation, including irradiation time, loading catalyst doses, pH value and H2O2 as an oxidizing agent, were investigated. The optimum photocatalytic degradation of 23 mg/L anthracene in different media was carried out at pH 7.2 with loading catalyst dose of 55.6 mg/L. In case of anthracene emulsion solution, a faster photochemical kinetic was observed in presence of ZnO NPs and more than 90% of photocatalytic degradation percentage was reached in 230 min. However, in case of anthracene aqueous solution and in presence of ZnO NPs/H2O2, a degradation efficiency of 84 % was obtained within 50 min. The byproducts of 4- formyl-benzoic acid ethyl ester (98.23%) and 1,2-Benzenedicarboxylic acid, isopropyl methyl ester (0.85%)) were detected by gas chromatography-mass spectrometry (GC-MS). The kinetic studies were achieved and revealed that the photocatalytic degradation process obeyed a Langmuir–Hinshelwood model and followed a pseudo-first order rate expression.
关键词： Pseudo-first order,Langmuir–Hinshelwood model,Anthracene,Metal oxide nanoparticles,Photocatalysis
更新于2025-09-23 15:21:21
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Dynamic Emission Tuning of X-ray Radioluminescent Crystalline Colloidal Arrays: Coupling the Optical Stop Band with Sequential F?rster Resonance Energy Transfers
摘要： X-ray radiation exhibits diminished scattering and a greater penetration depth in tissue relative to the visible spectrum and has spawned new medical imaging techniques that exploit X-ray luminescence of nanoparticles. The majority of the nanoparticles finding applications in this field incorporate metals with high atomic numbers and pose potential toxicity effects. Here, a general strategy for the preparation of a fully organic X-ray radioluminescent colloidal platform that can be tailored to emit anywhere in the visible spectrum through a judicious choice in donor/acceptor pairing and multiple sequential F?rster resonance energy transfers (FRETs) is presented. This is demonstrated with three different types of ≈100 nm particles that are doped with anthracene as the scintillating molecule to “pump” subsequent FRET dye pairs that result in emissions from ≈400 nm out past 700 nm. The particles can be self-assembled in crystalline colloidal arrays, and the radioluminescence of the particles can be dynamically tuned by coupling the observed rejection wavelength with the dyes’ emission.
关键词： anthracene,F?rster resonance energy transfer,photonic crystals,X-ray radioluminescence,colloidal crystals
更新于2025-09-23 15:21:21
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Facile synthesis of a??lucky clovera?? hole-transport material for efficient and stable large-area perovskite solar cells
摘要： Hole-transporting materials (HTMs) play a vital role of transporting holes from the perovskite layer to the counter electrode in perovskite solar cells (PSCs). A novel HTM BTPA-8 is feasibly synthesized by incorporating four dimethoxytriphenylamine leaflets and anthracene-based central bridge. BTPA-8 exhibits a suitable band alignment with MAPbI3 (MA ? CH3NH3) or FA0.85MA0.15PbI3 (FA?HC(NH2)2), high hole mobility, and high thermal stability. The best FA0.85MA0.15PbI3 device based on BTPA-8 exhibits a power conversion efficiency (PCE) of 17.99% in the reverse scan with an aperture area of 0.09 cm2. Under the same condition, a PCE of 18.92% is achieved by the solar cell based on the standard spiro-OMeTAD (2,2,7,7-tetrakis-(N,N-di-p-methoxyphenylamine)-9,9-spirobifluorene). A comparable PCE of 12.31% is also obtained for BTPA-8 based MAPbI3 device compared with spiro-OMeTAD (13.25%) with an aperture area >1 cm2. BTPA-8 based PSCs exhibit better long-term stability than spiro-OMeTAD due to its high hydrophobicity. A lower synthesis cost of BTPA-8 than that of spiro-OMeTAD along with the elevated long-term stability makes it promising for application in PSCs.
关键词： Perovskite solar cells,Hole-transporting material,Anthracene,Low cost
更新于2025-09-23 15:21:01