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| 1 | Preparation, Characterization and Luminescent Properties of MCM-41 Type Materials Impregnated with Rare Earth Complex显示文摘Hybrid materials incorporating Eu-(TTA)3·2H20 (hereafter designated as Eu-TTA, with TTA: thenoyltrifluoroacetone) in unmodified or modified MCM-41 by 3-aminopropyl-triethoxysilane (APTES) were prepared by impregnation method. The obtained materials were characterized using X-ray diffraction (XRD), IR and diffuse reflectance spectroscopy and luminescence spectra. All the hybrid samples exhibited the characteristic emission bands of Eu3+ under UV light exci-tation at room temperature, and the excitation spectra showed significant blue-shifts compared to the pure rare-earth complex. Although the red emission intensity in the modified hybrid was almost the half of the red emission intensity in the pure Eu-TTA complex at room temperature, the hybrid showed a much higher thermal stability due to the shielding character of the MCM-41 host. | Lianshe FU and Hongjie ZHANG Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China Philippe Boutinaud Laboratoire des Materiaux Inorganiques, UMR 6002, Universite | 2001 | Journal of Materials Science & Technology2001，17，3： | 4 |
| 2 | Ln3+(Ln=Eu,Dy)-doped Sr2CeO4 fine phosphor particles:Wet chemical preparation,energy transfer and tunable luminescence显示文摘The Sr2 CeO4:Ln3+(Ln=Eu,Dy)fine phosphor particles were prepared by a facile wet chemical approach,in which the consecutive hydrothermal-combustion reaction was performed.The doping of Ln3+into Sr2 CeO4 has little influence on the structure of host,and the as-prepared samples display wellcrystallized spherical or elliptical shape with an average particle size at about 100-200 nm.For Eu3+ions-doped Sr2 CeO4,with the increase of Eu3+-doping concentration,the blue light emission band with the maximum at 468 nm originating from a Ce4+→O2-charge transfer of the host decreases obviously and the characteristic red light emission of Eu3+(5 D0→7 F2 transition at 618 nm)is enhanced gradually.Simultaneously,the fluorescent lifetime of the broadband emission of Sr2 CeO4 decreases with the doping of Eu3+,indicating an efficient energy transfer from the host to the doping Eu3+ions.The ene rgy transfer efficiency from the host to Eu3+was investigated in detail,and the emitting color of Sr2 CeO4:Eu3+can be easily tuned from blue to red by varying the doping concentration of Eu3+ions.Moreover,the luminescence of Dy3+-doped Sr2 CeO4 was also studied.Similar energy transfer pheno menon can be observed,and the incorporation of Dy3+into Sr2 CeO4 host leads to the characteristic emission of 4 F9/2→6 H15/2(488 nm,blue light)and 4 F9/2→6 H13/2(574 nm,yellow light)of Dy3+.The Sr2 CeO4:Ln3+fine particles with tunable luminescence are quite beneficial for its potential applications in the optoelectronic fields. | Na Gao Yanfei Yang Shikao Shi Jiye Wang Shuping Wang Jibiao Li Lianshe Fu | 2020 | Journal of Rare Earths2020，38，12： | 4 |
| 3 | Preparation and Characterization of Ternary Europium Complex-Doped Thin Sol-Gel Hybrid Film by Fluorescence Spectroscopy显示文摘IntroductionThelow-temperatureprocessingofthesol-gelmaterialmakesitpossibletoentraporganicspecieseasilywithinarigidglassmatri... | FU Lianshe, ZHANG Hongjie**, WANG Shubin MENG Qingguo, YANG Kuiyue and NI Jiazuan (Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022) | 1999 | Chemical Research in Chinese Universities1999，15，2： | 1 |
| 4 | Lanthanide-based downshifting layers tested in a solar car race显示文摘The mismatch between the AM1.5G spectrum and the photovoltaic (PV) cells absorption is one of the most limiting factors for PV performance.To overcome this constraint through the enhancement of solar energy harvesting,luminescent downshifting (LDS) layers are very promising to shape the incident sunlight and,thus,we report here the use of Tb^3+- and Eu^3+-doped organic-inorganic hybrid materials as LDS layers on Si PV cells.Electrical measurements on the PV cell,done before and after the deposition of the LDS layers,confirm the positive effect of the coatings on the cell’s performance in the UV spectral region.The maximum delivered power and the maximum absolute external quantum efficiency increased 14% and 27%,respectively.Moreover,a solar powered car race was organized in which the small vehicle containing the coated PV cells presented a relative increase of 9% in the velocity,when compared to that with the uncoated one. | Sandra F.H.Correia Ana R.N.Bastos Lianshe Fu Luís D.Carlos Paulo S.André Rute A.S.Ferreira | 2019 | Opto-Electronic Advances2019，2，6： | 1 |
| 5 | Luminescent film with terbium-complex-bridged polysilsesquioxanes 显示文摘 | Liu Fengyi Fu Lianshe Wang Jun | 2003 | New J Chem2003，27，： | 1 |
| 6 | Preparation and luminescence properties of ormosil hybrid materials doped with Tb(Tfaeac) 3phen complex via a sol- gel process显示文摘 | GUO Junfang FU Lianshe LI Huanrong | 2003 | Mater Lett2003，57，24： | 1 |
| 7 | Preparation and Luminescence Properties of Terbium-Sal Complex In-situ Synthesized in Silica Matrix by a Two-Step Sol-Gel Process显示文摘In-situ synthesis of terbium complex with saiicylic acid (Sal) in silica matrix was made by a two-step sol-gel process. The terbium complex with salicylic acid was formed in sol-gel derived silica gel, and confirmed by the luminescence excitation spectra and infrared(IR) spectra. As compared to the pure terbium complex powder, the silica gel containing terbium complex exhibits its characteristic emission and presents a longer fluorescence lifetime than that for the pure complex. The luminescence properties of the complex containing silica gel were investigated and compared with that of both terbium doped the silica gel and the pure complex powder. The reasons leading to the above results were also discussed. | Fu, Lianshe Zhang, Hongjie Wang, Shubin Meng, Qingguo Shao, Hua Ni,
Jiazuan
| 1999 | Journal of Materials Science & Technology1999，15，2： | 1 |
| 8 | Preparation and lumin-escence properties of ormosil hybrid materials doped with Tb(Tfacac)3phen complex via a sol-gel process显示文摘 | GUO Junfang FU Lianshe LI Huanrong | 2003 | Materials Letters2003，57，： | 1 |
| 9 | Preparation and Luminescence Properties of the Ternary Europium Complex Incorporated into an Inorganic/Polymer Matrix by a Sol-Gel Method显示文摘 | Lianshe Fu Hongjie Zhang Shubin Wang Qingguo Meng Kuiyue Yang Jianzuan Ni | 1999 | Journal of Sol - Gel Science and Technology1999，，1： | 1 |
| 10 | Luminescence Properties of Rare Earth-polyoxometalate Thin Film Deposited by sol-gel Process显示文摘 | WANG Jun LIU Fengyi FU Lianshe ZHANG Hongjie | 2002 | Materials Letters2002，56，： | 1 |
| 11 | Preparation,luminescence and photofunctional performances of a hybrid layered gadolinium-europium hydroxide显示文摘The design and fabrication of rare earth ions incorporated into the inorganic/organic hybrid materials have attracted growing attention for seeking improved optical properties and photofunctional performances.In this paper,a novel hybrid composite based on the layered rare earth hydroxides was successfully prepared by the ion-exchange and intercalation chemical process.The rare earth elements in the composite contain gadolinium(Gd)and europium(Eu)and the molar ratio of Gd to Eu is kept constant at 1.9:0.1.Organic sodium dodecyl sulfonate and dye coumarin-3-carboxyllc acid are simultaneously incorporated into the layered rare earth hydroxides as supporting agent and light-harvesting antenna,respectively.The resulting hybrid layered rare earth hydroxides exhibit the enlarged interlayer distance with about 2.60 nm,and the chemical composition was confirmed through X-ray diffraction,carbon,hydrogen and nitrogen(CHN)elemental analysis,infrared spectroscopy,and thermogravimetric analysis.The layered solid compound shows the characteristic red emission corresponding to the^(5)D_(0)→^(7)F_(2)transition of Eu^(3+)ion,and the luminescence intensity of the optimized compound is greatly enhanced as compared to its corresponding nitrate and the hybrid composite without the introduction of dye molecule.The hybrid layered rare earth hydroxides can be exfoliated into bright colloidal solution,which show superior recognition capability to Cu^(2+)ion with the distinct luminescence quenching.The large quenching constant(1.4×10^(4)L/mol)and low detection limit(0.35μmol/L)are achieved for Cu^(2+)ion,implying a'turn-off'fluorescent sensor for Cu^(2+)detection.Moreover,a transparent film was prepared based on the colloidal solution and displays the typical red emission in folded shape.The new hybrid compound with enhanced luminescence and excellent photofunctional performances is expected to be applied in the fields of fluorescent sensing and flexible optical devices. | Lu Liu Jingjie Yu Shikao Shi Jiye Wang Huihua Song Ruikang Zhang Lianshe Fu | 2022 | Journal of Rare Earths2022，40，9： | 1 |
| 12 | Preparation and luminescence properties of ormosil hybrid materials doped with Tb(Tfacac)3 phen complex via a sol-gel process显示文摘 | Guo Junfang Fu Lianshe Li Huanrong | 2003 | Materials Letters2003，57，： | 1 |
| 13 | Luminescence properties of rare earth-polyoxometalate thin film deposited by sol-gel process显示文摘 | Jun Wang Lianshe Fu Hongjie Zhang | 2002 | Materials Letters2002，56，： | 1 |
| 14 | Super modules-based active QR codes for smart trackability and IoT:a responsive-banknotes case study显示文摘The general use of smartphones assigns additional relevance to QR codes as a privileged tool to the Internet of Things(IoT).Crucial for QR codes is the evolution to IoT-connected smart tags with enhanced storage capacity and secure accesses.Using the concept of super-modules(s-modules)built from adjacent spatial multiplexed modules with regular geometrical shapes,assisted by colour multiplexing,we modelled and design a single QR code with,at least,the triple storage capacity of an analogous size black/white QR code,acting as a smart-tag ensuring restrict access and trackability.The s-modules are printed using luminescent low-cost and eco-friendly inks based on organic-inorganic hybrids modified by lanthanides with multiplexed colour emission in the orthogonal RGB space.The access to the restrict information is attained only under UV irradiation and encrypted for secure transmission.The concept of active QR codes for smart trackability and IoT was materialised through the development of a free friendly-user mobile app. | João F.C.B.Ramalho Sandra F.H.Correia Lianshe Fu Lília M.S.Dias Pedro Adão Paulo Mateus Rute A.S.Ferreira Paulo S.André | 2020 | npj Flexible Electronics2020，4，1： | 0 |
| 15 | Synthesis and Luminescence Properties of SBA-15 Functionalized with Covalently Bonded Terbium-Benzoic Acid Complex显示文摘Novel hybrid materials containing covalently bonded Terbium-benzoic acid complex in mesoporous silicaSBA-15 (denoted as Tb-SBA-15 ) were prepared via co-condensation of tetrethoxysilane (TEOS) and N-(4-benzoicacid-yl), N'-(propyltriethoxysilyl) urea (denoted as PABI).XRD, FTIR and luminescence spectroscopy were employed to characterize Tb-SBA-15.When monitored by the ligand absorption wavelength (270 nm), Tb-SBA-15 displays the emission of Tb3+ (5D4→7Fj (j = 6, 5, 4, 3 ) transition) due to the energy transfer from the ligands to Tb3+. | Peng Chunyun Zhang Hongjie Liu Fengwei Meng Qinguo Fu Lianshe Sun Lining Guo Junfang Yu Jiangbo | 2004 | Journal of Rare Earths2004，22，z1： | 0 |
| 16 | Novel lanthanide coordination polymers based on mixed N,O-donor ligands and their visible-light-driven photocatalytic performance显示文摘In the present work,we prepared three isostructural lanthanide(Ln) coordination polymers(CPs).namely [Ln(Hhpc)(phen)(NO_(3))](Ln=Gd(1),La(2),Y(3),H_(3)hpc=5-hydroxy-1 H-pyrazole-3-carboxyIic acid,phen=1,10-phenanthroline) by hydrothermal method.Their structures were characterized by single crystal X-ray diffraction,Fourier transform infrared spectrum,elemental analysis,powder X-ray diffraction and thermal gravimetric analysis.CPs 1-3 are isostrutural and exhibit two-dimensional(2 D)wavy layered structure constructed from inorganic chains,in which equivalent eight coordinated Ln^(3+) ions are linked through carboxylate groups.The three dimensional supramolecular structure is further formed by hydrogen bonding.The photocatalytic experiments show that CPs 2 and 3 exhibit good photocatalytic performances under visible light in degradation of methylene blue organic dye.The photocatalytic degradation efficiencies in 90 min are about 86.19% and 93.60% for CPs 2 and 3,respectively.The photocatalytic degradation mechanisms have been proposed through photoelectrochemical and trapping radical experiments. | Jun Chen Weizhi Kou Shunsheng He Chenlan Lin Xin Wang Lianshe Fu Ting-Hai Yang | 2023 | Journal of Rare Earths2023，41，1： | 0 |
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