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Antimony selenide (Sb2Se3) is a highly promising photovoltaic material thanks to its outstanding optoelectronic properties, as well as its cost‐effective and eco‐friendly merits. However, toxic CdS is widely used as an electron transport layer (ETL) in efficient Sb2Se3 solar cells, which largely limit their development toward market commercialization. Herein, an effective green Cd‐free ETL of SnOx...
Electrocatalysts based on Fe and other transition metals are regarded as most promising candidates for accelerating the oxygen evolution reaction (OER), whereas whether Fe is the catalytic active site for OER is still under debate. Here, unary Fe‐ and binary FeNi‐ based catalysts, FeOOH and FeNi(OH)x, are produced by self‐reconstruction. The former is a dual‐phased FeOOH, possessing abundant oxygen...
Replacing liquid electrolytes with solid polymer electrolytes (SPEs) is considered as a vital approach to developing sulfur (S)‐based cathodes. However, the polysulfides shuttle and the growth of lithium (Li) dendrites are still the major challenges in polyethylene oxide (PEO)‐based electrolyte. Here, an all‐solid‐state Li metal battery with flexible PEO‐Li10Si0.3PS6.7Cl1.8 (LSPSCl)‐C‐lithium bis(trifluoromethanesulfonyl)imide...
In article number 1703102, Sang‐Hu Park, Jun‐Ho Jeong, and co‐workers propose a new method for fabricating three‐dimensional (3D) metal nanostructures based on nanoimprint lithography, electron‐beam evaporation, and nanowelding. This method allows for the shape of the nanostructures to be controlled by adjusting the temperature for the nanowelding process. This nanowelding method will find wide use...
A novel method for fabricating 3D metallic nanostructures to be used in polarized color filters based on nanoimprint lithography, electron‐beam evaporation, and nanowelding is proposed. The shape of the nanostructures can be controlled by adjusting the temperature for the nanowelding process. Ag nanowires deposited on polymer patterns are accumulated by the nanowelding process to build up diverse...
A noble‐metal‐free electrocatalyst is fabricated via in situ formation of nanocomposite of nitrogen‐doped graphene quantum dots (NGQDs) and Ni3S2 nanosheets on the Ni foam (Ni3S2‐NGQDs/NF). The resultant Ni3S2‐NGQDs/NF can serve as an active, binder‐free, and self‐supported catalytic electrode for direct water splitting, which delivers a current density of 10 mA cm−2 at an overpotential of 216 mV...
Exploring novel multifunctional rare earth materials is very important because these materials have fundamental interests, such as new structural facts and connecting modes, as well as potential technological applications, including optics, magnetic properties, sorption, and catalytic behaviors. Especially, employing these nanomaterials for sensing or catalytic reactions is still very challenging...
Designing smart surfaces with tunable wettability has drawn much attention in recent years for academic research and practical applications. Most of the previous methods to achieve such surfaces demand some particular materials that inherently have special features or complicated structures which are usually not easy to obtain. A novel strategy to achieve such smart surfaces is proposed by using the...
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