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Inorganic perovskite CsPbI2Br has advantages of excellent thermal stability and reasonable bandgap, which make it suitable for top layer of tandem solar cells. Nevertheless, solution‐processed all‐inorganic perovskites generally suffer from high‐density defects as well as significant tensile strain near underlayer/perovskite interface, both leading to compromised device efficiency and stability. In...
All‐Inorganic perovskite CsPbX3 (X = Cl, Br, I) quantum dots (QDs) have attracted tremendous attention in the past few years for their appealing performance in optoelectronic applications. Major properties of CsPbX3 QDs include the positive photoconductivity (PPC) and the defect tolerance of the in‐band trap states. Here it is reported that when hybridizing CsPbX3 QDs with indium tin oxide (ITO) nanocrystals...
The precise self‐assembly of block copolymers (BCPs) and inorganic nanoparticles (NPs) under 3D confinement offers microparticles with programmable nanostructures and functionalities. Here, fluorescence‐switchable hybrid microspheres are developed by forming doubly alternating arrays of Au NPs and CdSe/ZnS quantum dots (QDs) within polystyrene‐block‐poly(4‐vinylpyridine) (PS‐b‐P4VP) BCP domains. These...
Developing high‐efficiency and low‐cost oxygen‐evolving electrodes in anion exchange membrane (AEM) water electrolysis technology is one of the major challenges. Herein, it is demonstrated that the surface corrosion of a conventional Ni foam electrode in the presence of Fe3+ and V3+ cations can transform it into an electrode with a high catalytic performance for oxygen evolution reaction (OER). The...
Stimulus‐responsive fluorescence imaging modality shows great promise for detection of tumor due to the advantages of high sensitivity, simplicity and noninvasiveness. However, some non‐cancer regions including nodules and inflammation may also exhibit a stimulus‐related characteristic, which cause the problem of nonspecific responsiveness and then cause “false positive” results for tumor recognition...
Power outages caused by the aging of high‐voltage power facilities can cause significant economic and social damage. To prevent such problems, it is necessary to implement a widespread and sustainable monitoring system. Partial discharge (PD) is a preliminary symptom of power equipment aging accompanying the light, typically in the UV range. UVC (200–280 nm) is more useful than UVA and UVB because...
Van der Waals materials composed of stacks of individual atomic layers have attracted considerable attention due to their exotic electronic properties that can be altered by, e.g., manipulating the twist angle of bilayer materials or the stacking sequence of trilayer materials. To fully understand and control the unique properties of these few‐layer materials, a technique that can provide information...
The electronic properties of stacked few‐layer 2D materials are highly dependent on their precise structural arrangement. In article number 2100388, featured on the front cover, Michael J. Zachman, Miaofang Chi, and co‐workers describe a four‐dimensional scanning transmission electron microscopy technique that utilizes interference between Bragg discs to enable high‐resolution mapping of picometer‐scale...
In article number 2100639, Byungkwon Lim, Jeong Woo Han, Sung Mook Choi, and co‐workers present a ternary layered double hydroxide electrode that can be used as the anode of an anion exchange membrane water electrolyzer. This directly grown electrode shows that it can stably produce high‐efficiency and high‐purity hydrogen due to its excellent catalytic properties.
The asymmetric ion transport in the nanoconfined space, similar to that of natural ion channels, has attracted broad interest in sensor, energy conversion, and other related fields. Among these systems, the surface charge plays an important role in regulating ion transport behaviors. Herein, this surface charge‐regulated asymmetric ion transport behavior is systematically explored in the nanoconfined...
The clustered regularly interspaced short palindromic repeats (CRISPR)‐associated protein 9 (CRISPR/Cas9) is an efficient and precise gene‐editing technology that offers a versatile solution for establishing treatments directed at genetic diseases. Currently, CRISPR/Cas9 delivery into cells relies primarily on viral vectors, which suffer from limitations in packaging capacity and safety concerns....
Aqueous Zn ion batteries (AZIBs), featuring low cost, long‐term cycling stability, and superior safety are promising for applications in advanced energy storage devices. However, they still suffer from unsatisfactory energy density and operating voltage, which are closely related to cathode materials used. Herein, the use of monoclinic MnV2O6 (MVO) is reported, which can be activated for high‐capacity...
Producing high‐quality graphene and polymer/graphene nanocomposite is facing the problems of complex procedure, low efficiency, and serious resource waste. To explore a new fabrication approach with high efficiency and low cost is crucial for solving these technical issues, which becomes a current research hotspot and also a great challenge. Herein, a one‐step melt mixing strategy based on the synergy...
In article number 2101588, Karl Mandel and co‐workers report on how to obtain a micron‐sized magnetic supraparticle which carries a unique magnetic code. Via a hierarchical particle assembly principle, using magnetic nano building blocks, a nearly unlimited number of encoding options can be achieved. The particles enable magnetic tagging and tracing for recycling and anti‐counterfeiting applications...
In article number 2100724, Deyang Ji, Liqiang Li, Harald Fuchs, and co‐workers summarize recent advances of nanospheres lithography in organic electronics, including their applications in versatile organic electronic devices, such as organic field‐effect transistors (OFETs), OFET‐based sensors, vertical organic light‐emitting transistors (VOLETs), organic light emitting diodes (OLEDs), organic photovoltaic...
In article number 2008109, Marius Buerkle, Satoshi Kaneko, Tomoaki Nishino, and co‐workers induce the water‐splitting reaction under visible light utilizing a copper‐based single‐molecule junction. A product (hydrogen) and a reactant (water‐molecule) are distinguished by the single‐molecule measurements techniques based on conductance measurement, inelastic electron tunneling spectroscopy, and the...
Communicating objects are demanded for product security and the concepts of a circular economy or the Internet of Nano Things. Smart additives in the form of particles can be the key to equip objects with the desired materials intelligence as their miniaturized size improves applicability and security. Beyond their proposed identification by optical signals, magnetic signals deriving from magnetic...
Thermal management in Li‐ion batteries is critical for their safety, reliability, and performance. Understanding the thermal conductivity of the battery materials is crucial for controlling the temperature and temperature distribution in batteries. This work provides systemic quantitative measurements of the thermal conductivity of three important classes of solid electrolytes (SEs) over the temperature...
Aqueous zinc metal batteries (AZMBs) have drawn great attention due to the high theoretical capacity, low redox potential, and abundance reserves. However, the practical application of rechargeable AZMBs are hindered by the poor reversibility of Zn metal anode, owing to easy dendrite growth and serious side reactions. Herein, the preparation of heterogeneous interfacial film with highly dispersed...
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