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A high-performance non-volatile memory with low power consumption for long battery life and for large data storage is one of the key requirements of the wearable and other electronic Internet of Things (IoT) devices. In this study, we have fabricated and investigated the resistive switching behavior of an RRAM device using the nanocomposite of p...
8 trang | Chia sẻ: thanhle95 | Ngày: 16/07/2021 | Lượt xem: 257 | Lượt tải: 0
The structural and magnetic properties of Fe/Fe3O4 nanocomposites, synthesized by combined high energy ball milling and controlled oxidation, have been studied. An X-ray diffraction analysis of the crystal structure of the nanocomposites confirmed the coexistence of Fe and Fe3O4 phases. An increase of the oxygen concentration during oxidation pr...
7 trang | Chia sẻ: thanhle95 | Ngày: 16/07/2021 | Lượt xem: 298 | Lượt tải: 0
This work investigates the effect of the ratio of the explored Pt area in the electrolyte medium and the photoanode area (REP) on the performance of dye-sensitized solar cells (DSCs). It is found that the power conversion efficiency of DSCs increases by the ascending REP. The highest power conversion efficiency, which was obtained for the cell w...
5 trang | Chia sẻ: thanhle95 | Ngày: 16/07/2021 | Lượt xem: 267 | Lượt tải: 0
a b s t r a c t Indium-substituted yttrium iron garnet samples, Y3Fe5xInxO12 (x ¼ 0e0.7, step 0.1), were prepared using a citrate solgel method. Synchrotron X-ray diffraction (SXRD) measurements combined with the Rietveld refinement technique were used to investigate the crystallization, structure parameters and lattice distortion in the sampl...
8 trang | Chia sẻ: thanhle95 | Ngày: 16/07/2021 | Lượt xem: 234 | Lượt tải: 0
We developed a multi-functional adsorbent with excellent adsorption capacity and low contact time for reactive blue (RB) 19 dye removal. A multi-functional film based on chitosan (CS) combined with nanosized MgO was prepared by solvent casting with mild drying. The CS/MgO composite product was characterized by Fourier transform infrared spectros...
8 trang | Chia sẻ: thanhle95 | Ngày: 16/07/2021 | Lượt xem: 273 | Lượt tải: 0
In this paper, one-dimensional photonic crystal distributed feedback structures were chosen for simulating the photonic modes. The corresponding photonic bands were calculated by using a numerical method for solving the master equation, while the reflectivity spectra of the structures were simulated by using a rigorous coupled wave analysis metho...
9 trang | Chia sẻ: thanhle95 | Ngày: 16/07/2021 | Lượt xem: 238 | Lượt tải: 0
Globally, bone fractures due to osteoporosis occur every 20 s in people aged over 50 years. The significant healthcare costs required to manage this problem are further exacerbated by the long healing times experienced with current treatment practices. Novel treatment approaches such as tissue engineering, is using biomaterial scaffolds to stimu...
9 trang | Chia sẻ: thanhle95 | Ngày: 16/07/2021 | Lượt xem: 234 | Lượt tải: 0
Monitoring of toxic gas in air is important because air pollution, especially in developing countries, has rapidly become severe. The high cost of installation and maintenance of a stationary analysis system by using methods such as gas chromatography limits its applications. Low-power, portable devices with relatively low-cost gas sensors are e...
8 trang | Chia sẻ: thanhle95 | Ngày: 16/07/2021 | Lượt xem: 261 | Lượt tải: 0
Calcium phosphate (CaP) coating on melt electrowritten (MEW) substrates is a potential candidate for bone regeneration influencing the interaction of osteoblasts with implanted scaffolds. Pretreatment to improve hydrophilicity of the hydrophobic polymer fibres affects subsequent coating with bioactive compounds like CaP. Therefore, this study ev...
10 trang | Chia sẻ: thanhle95 | Ngày: 16/07/2021 | Lượt xem: 276 | Lượt tải: 0
Co-doped Na0.5Bi0.5TiO3 materials were fabricated by a sol-gel technique. The structural distortion of Codoped Na0.5Bi0.5TiO3 materials was due to the difference between the radii of Co dopants and Ti hosts. The optical band gap decreased from 3.11 to 1.83 eV because of the local state of the Co cation in the band structure. Room temperature ferr...
7 trang | Chia sẻ: thanhle95 | Ngày: 16/07/2021 | Lượt xem: 234 | Lượt tải: 0