The large‐scale, cost‐effective storage of electrical energy obtained from the growing deployment of wind and solar power is critically needed for the integration into the grid of these renewable energy sources. Rec...
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The large‐scale, cost‐effective storage of electrical energy obtained from the growing deployment of wind and solar power is critically needed for the integration into the grid of these renewable energy sources. Rechargeable batteries having a redox‐flow cathode represent a viable solution for either a Li‐ion or a Na‐ion battery provided a suitable low‐cost redox molecule soluble in an aprotic electrolyte can be identified that is stable for repeated cycling and does not cross the separator membrane to the anode. Here we demonstrate an environmentally friendly, low‐cost ferrocene/ferrocenium molecular redox couple that shows about 95 % energy efficiency and about 90 % capacity retention after 250 full charge/discharge cycles.
Photodetectors are generally the most promising, representative and widely-used type of detectors, and the applications of photodetectors are quite extensively. Photodetectors are made of photosensitive elements which...
Photodetectors are generally the most promising, representative and widely-used type of detectors, and the applications of photodetectors are quite extensively. Photodetectors are made of photosensitive elements which are able to turn the light signal into electrical signal. Owing to the nature of fast responding speed and capability of large volume manufacturing, it provides photodetectors an advantageous future in biomedical sensing territory. This study focuses on fabrication method of the flexible photodetectors and application to biomolecule sensing through luminescence. The photosensitive element is based on silicon wafer which is treated with chemical etching process to achieve pliable characteristic. Then, the metal-semiconductor-metal structural flexible photodetectors are achieved after integrated with simple fabricating processes. The accomplished devices are handled with immobilization steps to fix the target enzyme which is able to catalyze the luminescent reaction. We provide a portable biomolecule sensor with outstanding flexible characteristic and high sensitivity and it exhibits illustrious stable consequence in various situations.
Photodetectors are generally the most promising, representative and widely-used type of detectors, and the applications of photodetectors are quite extensively[1-3]. Basically photodetectors are made of photosensitive...
Photodetectors are generally the most promising, representative and widely-used type of detectors, and the applications of photodetectors are quite extensively[1-3]. Basically photodetectors are made of photosensitive elements which are able to turn the light signal into electrical signal. Nowadays, the detecting wavelength region is very broad and can be classified into infrared, visible light and ultraviolet zone; furthermore, the applications of each region are manifold especially in visible light region. Additionally owing to the nature of fast responding speed, it promises photodetectors an advantageous future in biomedical sensing territory[4-5]. This study is focus on fabrication method of the flexible[6-8] photodetectors and application to biomolecule sensing through luminescence. The photosensitive element is based on single crystalline silicon semiconductor material which is treated with chemical etching process to achieve pliable characteristic[9]. Then, the metal-semiconductor-metal[10-14]structural flexible photodetectors are achieved after integrated with simple fabricating processes. In detail, the accomplished devices are handled with immobilization steps to fix the target enzyme which is able to catalyze the luminescent reaction (Fig.1). Owing to only extremely stable sensor for biomedical use, it is necessary to ensure the operation function at any crucial conditions. In this study, we provide a portable biomolecule sensor with outstanding flexible characteristic and high sensitivity and it exhibits illustrious stable consequence in various situations. Figure *** diagram of immobilization process flow and luminescence detection. A pliable silicon chip measured under fifty micrometers in thickness is achieved through a simple method via alkaline etchant. The silicon chip with designed thickness is featured of great flexibility and relatively little fragility. A surface modification is applied to the flexible silicon chip with non-toxic and e
A combination of electron microscopy and in-situ x-ray diffraction is employed to study the thermal oxidation of brass (Cu0.7Zn 0.3 alloy) in order to elucidate the mechanism of one-dimensional growth of ZnO nanostruc...
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2D discrete dislocation simulations, enhanced by a set of physically based rules to mimic 3D processes of dislocation activity, are used to investigate the effects of taper on micropillar plasticity. Pillars with mate...
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ISBN:
(纸本)9781118605813
2D discrete dislocation simulations, enhanced by a set of physically based rules to mimic 3D processes of dislocation activity, are used to investigate the effects of taper on micropillar plasticity. Pillars with material properties of Al and a height to diameter aspect ratio of 3 are loaded in compression. The mechanical response of the compressed pillars with mid-height diameter of D = 0.4, 0.8. 1.6, 3.2, and 9.6 μm and taper angle of 0 and 10° are studied. Untapered pillars show a strong size effect as the diameter is reduced from 9.6 to 0.4 μm, in keeping with previous findings. The analyses show that tapered pillars exhibit a less pronounced size effect in an average sense. The build-up of effective GND density, which was previously identified as one of the origins of the size effect in untapered pillars, diminishes in tapered pillars. The analyses show that the size effect cannot be caused by the tapering since the latter does not enhance the size effect but rather decreases it.
Symmetric superlattice structures of multiferroic BiFeO3 and conductive LaNiO3 sublayers were grown on a Nb-doped SrTiO 3 substrate with radio-frequency magnetron-sputtering. The formation of a superlattice structure ...
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A series of laser pump, x-ray probe experiments show that above band gap photoexcitation can generate a large out-of-plane strain in multiferroic BiFeO3 thin films. The strain decays in a time scale that is the same a...
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In recent years, platinum-based single crystalline nanoalloys as nanoscale catalysts, such as Pt-M (M = Ni, Co, Fe..etc.), have exhibited improved catalytic performance due to the increase in the surface-to-volume rat...
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