• Combining the mie-lennard-jones and the morse potentials in studying the elastic deformation of interstitial alloy AGC with FCC structure under pressureCombining the mie-lennard-jones and the morse potentials in studying the elastic deformation of interstitial alloy AGC with FCC structure under pressure

    In this study, the mean nearest neighbor distance between two atoms, the Helmholtz free energy and characteristic quantities for elastic deformation such as elastic moduli E, G, K and elastic constants C11, C12, C44 for binary interstitial alloys with FCC structure under pressure are derived with the statistical moment method. The numerical calc...

    pdf12 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 387 | Lượt tải: 0

  • Synthesis of ZnO nanoparticles/nanofibers and their luminescence via electrospinningSynthesis of ZnO nanoparticles/nanofibers and their luminescence via electrospinning

    This article reports on the synthesis procedure of ZnO nanoparticles/nanofibers structure by electrospinning method using Zinc acetate and polyvinylpyrrolidone (PVP) surfactant as reagents and evaluates their luminescent properties. The microstructure of ZnO nanoparticles/nanofibers was observed by FE-SEM. The phase formation of ZnO nanoparticl...

    pdf5 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 411 | Lượt tải: 0

  • The enhancement of visible absorption of Cu doped ZnO nanorods on patterned substratesThe enhancement of visible absorption of Cu doped ZnO nanorods on patterned substrates

    We report the antireflection and light absorption in visible region by new stretchable substrates with patterned structure. Mogul substrates with 3-Dimentional structures were fabricated by using polydimethyl – siloxane that imitate the nanostructures surface. Then, Copper doped ZnO NRs on mogul-patterned surface by hydrothermal method at low te...

    pdf8 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 381 | Lượt tải: 0

  • Synthesis and Characterization of silver nanoparticles for antibacterial application against Bacillus subtilis and Pseudomonas aeruginosaSynthesis and Characterization of silver nanoparticles for antibacterial application against Bacillus subtilis and Pseudomonas aeruginosa

    In this study, the stable silver nanoparticles (AgNPs) were synthesized by reducing silver nitrate (AgNO3) using trisodium citrate (TSC). The product was characterized by Ultraviolet-Visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and X-ray diffraction analysis (XRD). UV-Vis spectrum s...

    pdf7 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 453 | Lượt tải: 0

  • EXAFS Debye-Waller factors of B2-FeAl alloysEXAFS Debye-Waller factors of B2-FeAl alloys

    This work develops the anharmonic correlated Debye model to study the temperaturedependent extended X-ray absorption fine structure (EXAFS) Debye-Waller factors (DWFs) of B2- FeAl alloys. We derived the analytical expressions of the EXAFS DWF and Debye frequency as functions of temperature. Numerical calculations were performed for Fe1-yAly alloy...

    pdf6 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 360 | Lượt tải: 0

  • Excess conductivity analyses in Bi-Pb-Sr-Ca-Cu-O systems sintered at different temperaturesExcess conductivity analyses in Bi-Pb-Sr-Ca-Cu-O systems sintered at different temperatures

    This paper studies the effects of the sintering temperature on crystal structure, critical temperature (Tc) and excess conductivity of Bi-Pb-Sr-Ca-Cu-O (BPSCCO) system. Bulk BPSCCO samples were fabricated by the solid-state reaction method. Four different temperatures of 835 °C, 840 °C, 845 °C, and 850 °C were applied to sinter four different sa...

    pdf10 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 542 | Lượt tải: 0

  • Influences of ZnO nanorod arrays on photocatalytic activity of n-ZnO Nanorods/p-Si heterostructureInfluences of ZnO nanorod arrays on photocatalytic activity of n-ZnO Nanorods/p-Si heterostructure

    Zinc oxide is known as an excellent material for biosensors, solar cells, semiconductors and photocatalysts. In this work, n-ZnO nanorods/p-Si heterostructures were successfully fabricated by a hydrothermal method at different baking temperatures. The n-ZnO nanorods/p-Si heterostructures show good photocatalytic ability at high baking temperatur...

    pdf6 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 408 | Lượt tải: 0

  • Electrochromic properties of PANI/TiO₂ nanocomposite films prepared by electropolymerizationElectrochromic properties of PANI/TiO₂ nanocomposite films prepared by electropolymerization

    PANI/nc-TiO2/ITO composite films were prepared by electrochemical method where the monomer aniline was polymerized onto nano-porous TiO2/ITO films (PANI/nc-TiO2/ITO). The PANI/nc-TiO2 heterojunctions were formed in the composite films due to the insertion of PANI in nano-porous TiO2 particles. PANI/ITO films exhibited a reversible electrochromic...

    pdf7 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 362 | Lượt tải: 0

  • Photoluminescent properties of red-emitting AlPO4:Cr3+ phosphor for plant growth LEDsPhotoluminescent properties of red-emitting AlPO4:Cr3+ phosphor for plant growth LEDs

    In this study, red-emitting AlPO4:Cr3+ phosphors have been successfully synthesized by a facile sol-gel method. The Tanabe–Sugano diagram demonstrates that the surrounding sites of Cr3+ ions have a high crystal field with Dq/B=2.47. The sharp 694-nm peak on the PL of AlPO4:Cr3+ phosphor could be attributed to the 2E→4A2 electron transition of Cr...

    pdf10 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 367 | Lượt tải: 0

  • Facile hydrothermal method for fabrication of seedless ZnO composite on PCBFacile hydrothermal method for fabrication of seedless ZnO composite on PCB

    Herein we report on a simple method to grow ZnO nanorod/Graphene oxide (GO) array without the initial seed layer on a printed circuit board (PCB) as the substrate based on Galvanic effect. The hydrothermal growing conditions such as temperature and time were investigated by Xray diffractometry (XRD), Raman scattering, as well as Scanning Electron...

    pdf10 trang | Chia sẻ: thuyduongbt11 | Ngày: 16/06/2022 | Lượt xem: 305 | Lượt tải: 0