Challenges and Strategies of Low‐Cost Aluminum Anodes for High‐Performance Al‐Based Batteries

Al, with the features of high specific capacity, low-cost, and abundant reserves, is promising for energy storage. The recent progress of Al anodes for various Al-based batteries is summarized. The challenges of Al anodes leading to a mismatch between theoretical and practical performance are discussed. Comprehensive strategies for Al anodes to boost...

4h

Novel Materials for Urban Farming

Novel materials are key to accelerate the development of technologies to improve the productivity and ensure the sustainability of urban farming. The novel material concepts help in improving seed treatment, alternative substrates, nutrients or pesticide delivery, environmental management, and plant health monitoring. This review highlights the current...

4h

Interface‐Mediated Twinning‐Induced Plasticity in a Fine Hexagonal Microstructure Generated by Additive Manufacturing

Deformation twinning is one of the most effective mechanisms for improving the strength–ductility trade-off of structural alloys. However, its activation in hexagonal close-packed (hcp) metals is reduced with decreasing grain size. This work reports the discovery of the activation of deformation twinning in a fine-grained hcp microstructure obtained...

4h

Advancing 2D Perovskites for Efficient and Stable Solar Cells: Challenges and Opportunities

Solar cells incorporating 2D perovskites show tradeoffs between efficiency and stability. The challenges these solar cells face are identified and select works the community has undertaken to overcome them are highlighted in this review. Several recommendations are proposed on how to further improve perovskite solar cells so their performance and stability...

4h

Slip‐Stacked J‐Aggregate Materials for Organic Solar Cells and Photodetectors

J- and H-aggregates constitute archetype functional materials due to unique properties originating from exciton coupling. Here, a broader perspective on the origin of red-shifted absorption bands including intermolecular charge transfer-mediated J-coupling is provided. Further, important classes of dye aggregates with regard to the prevailing intermolecular...

4h

Nanotechnology Enables Novel Modalities for Neuromodulation

Recent advances in developing novel nanoscale neuromodulation strategies with less invasiveness, improved biointerfaces, deeper penetration, and higher spatiotemporal precision are discussed. The employment of versatile nanomaterials and nanoscale devices with tailored physical properties has led to considerable research progress in nanotechnology-enabled...

4h

Magnetic Topological Insulator Heterostructures: A Review

The combination of topology and magnetic order can lead to new quantum states and exotic physical effects. An overview of proximity-coupled magnetic topological insulator heterostructures, involving modulation doping, magnetic insulators, antiferromagnets, and rare-earth dopants, is given. They form a platform for exploring emergent phenomena such as...

4h

Force‐Based Wetting Characterization of Stochastic Superhydrophobic Coatings at Nanonewton Sensitivity

Scanning droplet adhesion microscopy and micropipette-based droplet friction measurements are used for quantitative evaluation of the wetting properties of stochastic superhydrophobic coatings. These novel force-based characterization techniques provide a detailed picture of the wetting performance and heterogeneity of super-repellent surfaces, far...

4h

High‐Performance Harsh‐Environment‐Resistant GaOX Solar‐Blind Photodetectors via Defect and Doping Engineering

Certain application situations of solar-blind photodetectors (SBPDs) inevitably face harsh conditions (e.g., high temperature/electronic-field/radiation). Gallium oxide with an ultrawide bandgap is regarded as one of the most promising materials for SBPDs. Defect and doping engineering, including Ga-rich design and doping compensation, has been demonstrated...

4h

Uncommon Behavior of Li Doping Suppresses Oxygen Redox in P2‐Type Manganese‐Rich Sodium Cathodes

P2-type manganese-rich cathodes can have stabilized oxygen redox through doping Li/Mg to create unhybridized O 2p orbitals or introducing high covalency transition metals to induce a reductive coupling effect. This study on the model materials of P2-Na0.66Mn0.75Ni0.25O2 with and without Li doping reveals that the doped Li has complicated interactions...

4h