Applied Physics Letters
Articles in this Issue
Experimental study of Fabry–Pérot BICs in a microwave waveguide
We study Fabry–Pérot bound states in the continuum (FP-BIC) in the GHz frequency range in a metal-walled rectangular waveguide with two ceramic disks placed inside it. The disks act as perfect reflect...
Erratum: “Strain dependence of Auger recombination in 3 <b> <i>μ</i> </b> m GaInAsSb/GaSb type-I active regions” [Appl. Phys. Lett. <b>116</b> , 262103 (2020)]
Continuously tunable uniaxial strain engineering of two-dimensional materials under scanning probe microscopy
Uniaxial strain has emerged as a powerful technique for manipulating quantum phenomena in van der Waals (vdW) materials. However, most existing strain-engineering approaches face critical limitations:...
A universal approach: Nanodiamond mediated reduction of Co nanoparticle exsolution from La0.7Sr0.2Fe0.8Co0.2O3 for enhanced oxygen evolution reaction
The in situ exsolution process for metallic Co is crucial for developing low-cost and efficient oxygen evolution reaction (OER) catalysts based on perovskite materials. However, traditional exsolution...
Multi-order optical differentiator integrated with an omnidirectionally selective subtracter
Optical computing offers high-speed, low-power data processing, while optical differentiation enables instant edge detection for applications like autonomous driving, object recognition, and bio-detec...
Control of magnetic transition, metal–semiconductor transition, and magnetic anisotropy in noncentrosymmetric monolayer Cr2Ge2Se3Te3
Recent advances in two-dimensional materials have greatly expanded the family of ferromagnetic materials. The well-known 2D ferromagnets, such as CrI3, Cr2Ge2Te6, and Fe3GeTe2 monolayers, are characte...
Electron beam-induced reduction of Schottky barrier width for low contact resistance molybdenum disulfide field-effect transistor
In order to address the issue of the substantial contact resistance commonly encountered at the metal and two-dimensional (2D) semiconductors, an approach involving the reduction of Schottky barrier w...
Forming gas annealing-induced reversible 2D-to-3D bonding transition in 3R-MoS2
We report a method of engineering a reversible change in interlayer bonding between layers of exfoliated thin films of MoS2 by means of hydrogen intercalation through forming gas annealing. Interlayer...
Pronounced visible luminescence in GaN by high-temperature anion implantation
Chemically robust III-nitrides (III-N) with bandgaps in the visible spectral range are critical for advancing emerging technologies such as solar-driven photocatalysis and optoelectronics. Conventiona...
High-efficiency ternary layer-by-layer all-polymer solar cells enabled by a dual-donor alloy strategy
All-polymer solar cells (all-PSCs) exhibit the advantage of superior stability due to the intrinsic properties of the polymer with larger molecular sizes. However, obtaining excellent morphology of th...
Geometry-engineered spring-shaped silicon nanowires for directional airflow sensing on flexible substrates
Precise detection of gentle airflow remains challenging for wearable sensors due to low flexibility and limited directional sensitivity in conventional nanowire designs. Inspired by mechanosensory hai...
Cu-doped poly(1,8-diaminonaphthalene) enables high-rate and long-cycle stability for quasi-solid-state supercapacitors
The widespread adoption of aqueous polymer-based supercapacitors is significantly hampered by issues such as limited operating potential windows and low energy density. To address these challenges, th...
Impact of oxygen plasma pulse time on atomic-layer-deposited ZrO2 antiferroelectric energy storage capacitors
Fluorite-structured antiferroelectric (AFE) dielectric capacitors have emerged as promising candidates in energy storage applications. The AFE behaviors of dielectrics generally stem from an electric...
Suppressing endurance degradation in lead-free perovskite Cs3Bi2Br9 memristors: Grain engineering via annealing temperature and grain boundary passivation with PEG additive
Lead-free Cs3Bi2Br9 perovskite memristors have emerged as promising candidates for nonvolatile memory and neuromorphic computing due to their environmental friendliness and stability. However, their p...
Two-terminal Li+-based memristors with synchronous conductance modulation of Li-source/Li-reservoir layer for high-accurate image recognition
Memristors, characterized by in-memory computing and low-power consumption, are considered an ideal paradigm for building artificial neural networks and overcoming the von Neumann bottleneck. The two-...
Dipole engineering in self-assembled monolayers for efficient organic–silicon hybrid solar cells
Organic–silicon hybrid solar cells, as dopant-free heterojunction devices, hold significant potential for achieving high performance-to-cost ratios in photovoltaics. Critical to their advancement is t...
Reference black-body radiation source for emissivity measurements on the frequency range 3–30 THz
The emergence of radiation sources in different frequency ranges fuels the demand for techniques for spectrally resolved calibrations of their intensity. Thermal radiation of a perfectly absorbing obj...
Synergistically stabilized O3-type layered oxide cathodes via phase regulation of multi-cation doping enable high-performance sodium-ion batteries
O3-type layered oxides, as high-capacity cathode materials for sodium-ion batteries (SIBs), face practical limitations due to poor structural stability, high Na+ diffusion barriers, and inadequate rat...
Al3+-mediated aggregation-induced enhancement of photosensitization performance of gold nanoclusters
Photocatalytic oxidation driven by photosensitizers has demonstrated significant potential in the realm of green chemistry. In recent years, metal nanoclusters with well-defined atomic structures have...
Tunable d0 topological magnetic states in multiferroic monolayer In2NO2
Achieving and manipulating robust topological magnetic states has been a focus in condensed matter physics and materials sciences, exhibiting great potentials in next-generation information storage. H...
Wobulation using a tunable electrowetting prism applied to structured illumination microscopy
Sub-pixel shifting technologies are attractive for enhancing the resolution of cameras and projectors. Conventional techniques, such as wobulation and pixel shift, rely on mechanical moving parts or c...
Emission quantum coherence and interference of excitons in cuprous oxide
Emission coherence is crucial for quantum photonic technologies like single-photon emitters. However, emission from most bulk semiconductors suffers from severely limited coherence times under non-res...
Record magnetic field generation by short-pulse laser-driven capacitor-coil targets
Magnetic fields generated by capacitor-coil targets driven by intense short-pulse lasers have been characterized using ultrafast proton radiography. A 1-kJ, 15-ps laser at a center wavelength of 1053 ...
Critical issues in 2D-material-based field-effect transistors
Mechanism of charge generation by high-speed water nanodroplets impinging on metal surfaces
This study explores the mechanism of charge generation when high-speed water nanodroplets impact metal surfaces. Using a condensation-based nanodroplet generator, we measured the electric potential an...