32 Result(s)
within
Nanotechnology
Wan**g Guo
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Electricity generated by upstream proton diffusion in two-dimensional nanochannels
The movement of ions along the pressure-driven water flow in narrow channels, known as downstream ionic transport, has been observed since 1859 to induce a streaming potential and has enabled the creation of v...
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Erratum to: Efficient and stable perovskite solar cells by build-in π-columns and ionic interfaces in covalent organic frameworks
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Open AccessNano-frictional mechano-reinforcing porous nanowires scaffolds
Artificial biomaterials with dynamic mechano-responsive behaviors similar to those of biological tissues have been drawing great attention. In this study, we report a TiO2-based nanowire (TiO2NWs) scaffolds, whic...
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Open AccessProof of Aerobically Autoxidized Self-Charge Concept Based on Single Catechol-Enriched Carbon Cathode Material
An air-breathing chemical self-charge concept of oxygen-enriched carbon cathode.
The oxygen-enriched carbon mater...
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Excitation-assisted pseudo-ferroelectric effect in ultrathin graphene/phosphorene heterostructure
Pseudo-ferroelectric transistors have attracted particular interest owing to their applications in the non-volatile memories and neuromorphic circuits; however, it remains to be explored in the limit of few-la...
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Role of electrodes in study of hydrovoltaic effects
The last decade has witnessed the emergence of hydrovoltaic technology, which can harvest electricity from different forms of water movement, such as raindrops, waves, flows, moisture, and natural evaporation....
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Efficient and stable perovskite solar cells by build-in π-columns and ionic interfaces in covalent organic frameworks
Perovskite solar cells (PSCs) have attracted much attention due to their rapidly increased power conversion efficiencies, however, their inherent poor long-term stability hinders their commercialization. The d...
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Lifting surface reconstruction of Au (100) by tellurium adsorption
The Au (100) surface has been a subject of intense studies due to excellent catalytic activities and its model character for surface science. However, the spontaneous surface reconstruction buries active Au (1...
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Ultralow friction of ion-containing water nanodroplets
We reveal the ultralow friction or superlubricity of water nanodroplets containing cations and anions on graphene substrates at high ion concentration by molecular dynamics simulations. When the ion concentrat...
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Open AccessElectro-lubrication in Janus transition metal dichalcogenide bilayers
Lubrication induced by a vertical electric field or bias voltage is typically not applicable to two-dimensional (2D) van der Waals (vdW) crystals. By performing extensive first-principles calculations, we reve...
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Open AccessOptical, thermal, and mechanical properties of (Y1−xScx)2O3 transparent ceramics
Sesquioxides such as Y2O3 and Sc2O3 are important optical materials, but the fabrication of their transparent ceramics remains a challenge due to the ultra-high melting point of over 2400 °C. In this work, a seri...
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Flexoelectricity enhanced water splitting and hydrogen evolution reaction on grain boundaries of monolayer transition metal dichalcogenides
Our extensive first-principles calculations reveal that the chemical activities of monolayer transition metal dichalcogenides (TMDs) MX2 (M = Mo or W, and X = Te, Se, or S) for water splitting and hydrogen evolut...
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Strong electron-ion coupling in gradient halide perovskite heterojunction
The electron-ion coupling in iontronics has great significance and potential for energy conversion and storage devices. However, it is a substantial challenge to integrate iontronics into all-solid-state semic...
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Probing interactions at two-dimensional heterointerfaces by boron nitride-wrapped tip
Non-covalent interactions are important for two-dimensional heterointerfaces but challenged to be accurately determined, especially when the dielectric hexagonal boron nitride (BN) is involved. Here, we presen...
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Double drumheadlike surface states in elemental group V nodal line semimetals
Drumheadlike surface states are typical characteristics in nodal line semimetals and bring varieties of unusual attractive properties. Here we demonstrate the double drumheadlike surface states in group V elem...
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Probing van der Waals interactions at two-dimensional heterointerfaces
Two-dimensional (2D) heterostructures assembled via van der Waals (vdW) interactions have sparked immense interest in fields from physics1,2 to electronics3,4. Understanding the vdW interaction at these heteroint...
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Sensitive fluorometric determination of platelet-derived growth factor BB and avian influenza A virus DNA via dual signal amplification using the hybridization chain reaction and glucose oxidase assisted recycling
A method is described for fluorometric determination of platelet-derived growth factor BB (PDGF-BB) and avian influenza A (H1N1) virus DNA. It is based on the use of the hybridization chain reaction (HCR) and ...
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Emerging hydrovoltaic technology
Water contains tremendous energy in a variety of forms, but very little of this energy has yet been harnessed. Nanostructured materials can generate electricity on interaction with water, a phenomenon that we ...
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Three-layer phosphorene-metal interfaces
Phosphorene has attracted much attention recently as an alternative channel material in nanoscale electronic and optoelectronic devices due to its high carrier mobility and tunable direct bandgap. Compared wit...
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Water-evaporation-induced electricity with nanostructured carbon materials
Water evaporation from the surface of cheap carbon-black materials can be used to generate sustained voltages of up to 1 V under ambient conditions.
