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The photodiode is a prevailing architecture for photodetection with the merits of fast response and low dark current. However, an ideal photodiode is also desired for both high responsivity and high external quantum efficiency (EQE), which may facilitate more applications. Here the photoconducting effect in a photodiode is discussed and an Au–PbS colloidal quantum dot (CQD)–indium tin oxide Schottky...
In article number 1702864, Ying Bai, Chuan Wu, and co‐workers design and fabricate hierarchical three‐dimensional electronic channels wrapped large‐sized Na3V2(PO4)3. As flexible electrode material for sodium‐ion batteries, it exhibits outstanding electrolyte wettability, ultra‐fast electronic conductivity, and high Na ion diffusion coefficients, leading to superior electrochemical performances.
The development of portable and wearable electronics has aroused the increasing demand for flexible energy‐storage devices, especially for the characteristics of high energy density, excellent mechanical properties, simple synthesis process, and low cost. However, the development of flexible electrodes for sodium‐ion batteries (SIBs) is still limited due to the intricate production methods and the...
Prussian blue and its analogs are regarded as the promising cathodes for sodium‐ion batteries (SIBs). Recently, various special structures are constructed to improve the electrochemical properties of these materials. In this study, a novel architecture of Prussian blue analogs with large cavity and multilayer shells is investigated as cathode material for SIBs. Because the hollow structure can relieve...
A highly efficient oxygen electrode is indispensable for achieving high‐performance aprotic lithium–O2 batteries. Herein, it is demonstrated that strongly coupled carbon nanosheets/molybdenum carbide (α‐MoC1−x) nanocluster hierarchical hybrid hollow spheres (denoted as MoC1−x/HSC) can work well as cathode for boosting the performance of lithium–O2 batteries. The important feature of MoC1−x/HSC is...
Flexible and stretchable microscale fluidic devices have a broad range of potential applications, ranging from electronic wearable devices for convenient digital lifestyle to biomedical devices. However, simple ways to achieve stable flexible and stretchable fluidic microchannels with dynamic liquid transport have been challenging because every application for elastomeric microchannels is restricted...
In article number 1702170, Xu Hou and co‐workers show a universal strategy for building flexible microfluidic devices with applications in strain sensors and pressure‐flow regulating devices. These devices exhibit superior mechanical deformability, including high strain and recovery ability. With further surface physicochemical modification, the devices can also gain anti‐fouling properties for a...
The development of effective approaches for preparing large‐area, self‐standing, ultrathin metal‐based nanosheets, which have proved to be favorable for catalytic applications such as water electrolysis, is highly desirable but remains a great challenge. Reported herein is a simple and versatile strategy to synthesize ultrathin Co3O4 and CoP NSs consisting of close‐packed nanoparticles by pyrolyzing...
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