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Plasmonic gold nanorods (Au NRs)–copper sulfide heterostructures have recently attracted much attention owing to the synergistically enhanced photothermal properties. However, the facile synthesis and interface tailoring of Au NRs–copper sulfide heterostructures remain a formidable challenge. In this study, the rational design and synthesis of Au NRs–Cu7S4 heterostructures via a one‐pot hydrothermal...
Heterostructures have attracted increasing attention due to their amazing synergetic effects, which may improve the electrochemical properties, such as good electrical/ionic conductivity, electrochemical activity, and mechanical stability. Herein, novel hierarchical Fe2O3@Ni3Se4 nanotubes are successfully fabricated by a multistep strategy. The nanotubes show length sizes of ≈250–500 nm, diameter...
The problem of light source always prevents silicon‐based photonics from achieving a final integration. Although some optical pump lasers have been reported in recent years, an electrical pumping laser is considered as the ultimate solution. To fabricate a Si‐based laser, there are some crucial obstacles that need to be solved such as difficulties in material epitaxy, light absorption by metal electrodes,...
Hydrogen peroxide (H2O2) is a major messenger molecule in cellular signal transduction. Direct detection of H2O2 in complex environments provides the capability to illuminate its various biological functions. With this in mind, a novel electrochemical approach is here proposed by integrating a series of CoO nanostructures on CuO backbone at electrode interfaces. High‐resolution transmission electron...
In article number 1704531, Ye Wang, Yi‐Jun Xu, and co‐workers reveal the double‐edged sword role of graphene on boosted charge separation/transfer versus active site control by constructing a TiO2 nanotube arrays@RGO/MoS2 heterostructure. This finding manifests that an efficient design for a specific photoredox process over graphene‐semiconductor photocatalysts should take both improved charge separation/transfer...
Charge separation/transfer is generally believed to be the most key factor affecting the efficiency of photocatalysis, which however will be counteracted if not taking the active site engineering into account for a specific photoredox reaction. Here, a 3D heterostructure composite is designed consisting of MoS2 nanoplatelets decorated on reduced graphene oxide‐wrapped TiO2 nanotube arrays (TNTAs@RGO/MoS...
Fabricating cost‐effective, bifunctional electrocatalysts for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in basic media is critical for renewable energy generation. Here, NiSe/CP, Ni0.85Se/CP, and NiSe‐Ni0.85Se/CP heterostructure catalysts with different phase constitutions are successfully prepared through in situ selenylation of a NiO nanoflake array oriented...
High capacity transition‐metal oxides play significant roles as battery anodes benefiting from their tunable redox chemistry, low cost, and environmental friendliness. However, the application of these conversion‐type electrodes is hampered by inherent large volume variation and poor kinetics. Here, a binary metal oxide prototype, denoted as nonhierarchical heterostructured Fe2O3/Mn2O3 porous hollow...
Herein, a unique ganoderma‐like MoS2/NiS2 hetero‐nanostructure with isolated Pt atoms anchored is reported. This novel ganoderma‐like heterostructure can not only efficiently disperse and confine the few‐layer MoS2 nanosheets to fully expose the edge sites of MoS2, and provide more opportunity to capture the Pt atoms, but also tune the electronic structure to modify the catalytic activity. Because...
In article number 1800697, Yu Wang and co‐workers report a unique ganoderma‐like MoS2/NiS2 hetero‐nanostructure with isolated Pt atoms anchored. The ganoderma‐like heterostructure can not only change the electronic state, but also evenly disperse and anchor the few‐layer MoS2. Single Pt atoms, just as spores anchored on ganoderma, can greatly activate the in‐plane S atoms. The synergy of the ganoderma‐like...
Various photodetectors showing extremely high photoresponsivity have been frequently reported, but many of these photodetectors could not avoid the simultaneous amplification of dark current. A gate‐controlled graphene–silicon Schottky junction photodetector that exhibits a high on/off photoswitching ratio (≈104), a very high photoresponsivity (≈70 A W−1), and a low dark current in the order of µA...
For efficient charge separations, multimaterial hetero‐nanostructures are being extensively studied as photocatalysts. While materials with one heterojunction are widely established, the chemistry of formation of multijunction heterostructures is not explored. This needs a more sophisticated approach and modulations. To achieve these, a generic multistep seed mediated growth following controlled ion...
In article number 1802593, Changgu Lee and co‐workers develop a photodetector based on a ReS2/graphene heterostructure, which exhibits outstanding photoresponsivity, detectivity, and ultrafast responsivity due to the excellent light absorption property of ReS2 and high carrier mobility of graphene. The interface between ReS2 and graphene facilitates a high photocurrent because of the photogating effect...
Heterostructures that combine graphene and transition metal dichalcogenides, such as MoS2, MoTe2, and WS2, have attracted attention due to their high performances in optoelectronic devices compared to homogeneous systems. Here, a photodevice based on a hybrid van der Waals heterostructure of rhenium disulfide (ReS2) and graphene is fabricated using the stacking method. The device presents a remarkable...
2D crystals, single sheets of layered materials, often show distinct properties desired for optoelectronic applications, such as larger and direct band gaps, valley‐ and spin‐orbit effects. Being atomically thin, the low amount of material is a bottleneck in photophysical and photochemical applications. Here, the formation of stacks of 2D crystals intercalated with small surfactant molecules is proposed...
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