Nano-Micro Letters最新文献

A versatile yet scalable “wet-spinning hydrogel fibers assisted with constrained alignment (HFCA)” strategy is proposed to achieve a highly vertical hydrogel fiber aggregate with multiscale pore structure.

The dual “heat supply/insulation model” transforms the conventional single cold evaporation into cold/hot evaporation on the side surface for the first time, maximizing energy utilization of 3D evaporator.

HFCA makes a breakthrough in verticalization of water transport channels and maximum utilization of energy, accompanied with superior salt tolerance, anti-oil fouling and self-cleaning ability.

(1–0)–3 single-crystal piezocomposite (SCPC) based on [011]-oriented relaxor PIN-PMN-PT crystal was fabricated via a modified method combining 3D printing-assisted dice-and-insert with dice-and-fill techniques.

The (1–0)–3 SCPC, characterized by ordered and poled microholes and incorporating a dual-piezo-charge mechanism, achieves an ultrahigh hydrostatic figure of merit d_hg_h of about 8089 × 10⁻¹⁵ m² N⁻¹.

The ultrasound transducer based on (1–0)–3 SCPC exhibits a ~ 70% enhancement in underwater acoustic sensitivity while maintaining a broad − 3 dB bandwidth of 130 kHz.

A novel strategy of creating spontaneous formation of gradient p-doping in perovskite embedded in mesoporous oxide scaffold is developed.

The feasibility of implementing a gradient p-doping strategy in printable mesoscopic perovskite solar cells is demonstrated for the first time through combined device simulations and cross-sectional photoluminescence mapping.

The resulting carbon-based hole transport layer-free solar cell exhibits outstanding power conversion efficiency along with superior operational stability over 1500 h without UV filter at 55 °C.

PtFe catalyst was rationally designed based on frontier molecular orbital theory to investigate orbital-level interactions for enhanced oxygen evolution reaction activity in Li–O₂ batteries.

The d_z²–d_z² orbital coupling between Fe and Pt leads to electron donation from Fe to Pt, increasing electron population in the Pt d_z² orbital.

Excess electrons from the Pt d_z² orbital occupy antibonding states with LiO₂, weakening interaction strength and boosting oxygen evolution reaction kinetics.

This review provides a comprehensive discussion of the energy storage mechanisms, electrode materials, and electrolyte-related challenges in two key configurations: zinc metal anode//capacitive cathode zinc-ion capacitors (ZC-ZICs) and capacitive anode//battery-type cathode ZICs (CB-ZICs).

This review provides comprehensive and effective solutions to the core bottleneck issues in the two key configurations.

This review proposes forward-looking development roadmap of the ZICs, including pulse voltage activation on carbon electrodes, application of high-entropy materials as electrodes, and the development of stable and multifunctional electrolytes.

Bioinspired bundle-sheath structure improves electrochemical and thermal stability; nanocellulose composite membranes can be used as high-performance all-solid-state lithium batteries separators.

The FFP/ASSPE has a high ionic conductivity of 2.46 × 10⁻⁴ S cm⁻¹ at 30 °C.

Li|FFP/ASSPE|LFP cells can maintain 77.48% capacity after 1000 cycles at 1 C, and Li|FFP/ASSPE|NCM811 cells maintain 83.94% capacity after 300 cycles of 0.1 C.

A cooperative dual-mode sodium-storage mechanism, combining interstitial solid-solution intercalation and surface pseudocapacitance, is identified, diverging from the conventional conversion-dominated chemistry of nickel phosphides.

In-situ/ex-situ analyses provide direct evidence of reversible Na⁺ insertion into lattice interstitials through (111)-oriented interplanar channels, enabling low-strain lattice breathing without phase transformation.

The freestanding Ni₂P composite electrode achieves exceptional performance, including high reversible capacity (≈560 mAh g⁻¹), remarkable rate capability (135 mAh g⁻¹ at 10 A g⁻¹), and long-term stability over 2000 cycles.

A novel multifunctional additive (ZL1) enables formamidinium loss suppression and perovskite stabilization via synergistic multisite interactions.

ZL1 demonstrates defect passivation, enhanced charge carrier extraction, and reduced charge recombination.

The optimized devices exhibit a high champion efficiency of 26.13%, combined with robust photothermal stability.