Applied Physics Letters
Articles in this Issue
Dynamics of hydrogen bubble movement and oscillation on platinum microelectrodes during water electrolysis
Insight into the evolution and movement of bubbles during water electrolysis is crucial to promoting bubble detachment. Here, we investigate the dynamics of hydrogen bubble oscillation on a platinum m...
Enhanced contrast to circularly polarized excitation in large-area continuous MoS2 monolayer coupled to plasmonic spiral arrays
Most applications in optoelectronics that utilize two-dimensional transition metal dichalcogenides (TMDs) are currently limited to micrometer sizes, making the scalability of these devices practically...
Characterization of vertical AZO/p-GaN/n-GaN heterojunction bipolar transistor
Vertical device architectures are attracting attention for power electronics applications owing to their high current capabilities and space-efficient layouts. In this study, we demonstrate a GaN-base...
Three-terminal memcapacitive synapses based on a thin H-TiO2 layer
Taking inspiration from the biological synapse, an ion-based memcapacitor has been considered as a promising candidate for mimicking the biological synapse. Herein, we propose an Ag/H3PO4-PVA/TiO2/MXe...
Coherent ultraviolet light generation in widegap wurtzite ZnMgO thin films through frequency conversion
Laser frequency conversion in wide bandgap nonlinear optical thin films enables compact coherent ultraviolet (UV) light sources for UV photonics integrated circuits. This work unveils the generation o...
Real-time midair manipulation of objects larger than wavelength using multiple facing pairs of acoustic vortex beams
Acoustic levitation is a technique that traps solids or liquids in the air. Recently, many studies on stably levitating and manipulating objects larger than the midair ultrasound wavelength have been...
Cation-induced lattice modulation effects in efficient CZTSSe solar cells
Although Ag single-doping and Ag-Cd co-doping have been demonstrated to enhance the performance of Cu2ZnSn(S,Se)4 solar cells, current understanding remains largely confined to defect-level modulation...
Negative spin Hall magnetoresistance in Mn3Ir/Co bilayers induced by interfacial spin-orbit coupling
Understanding the interconversion between charge current and spin current in antiferromagnetic materials is crucial for advancing antiferromagnetic spintronic devices. In this work, we utilize the sec...
Current-driven dynamics of domain-wall skyrmions in pinned channels
Domain-wall skyrmions (DWSks) are topological spin textures confined within magnetic domain walls. These hybrid structures have recently attracted considerable interest due to their combination of adv...
Conductivity decay in freshly fabricated TFB films
Understanding the hole transport layers is fundamental to improve the stability of quantum-dot light-emitting diodes. This study investigates the short-term conductivity decay of freshly fabricated po...
Unveiling the structural, electronic, and optical properties of ATaO3 (A = K, Rb, Cs) perovskites via DFT calculations
Alkali-metal tantalates ATaO3 (A = K, Rb, Cs) are cubic perovskite oxides whose properties can be tuned by varying the A-site cation. Using density functional theory with Perdew–Burke–Ernzerhof genera...
Phonon transport in lithiated graphene–copper heterostructures: Intertwined thermal and electrochemical properties
Effective thermal management is crucial for maintaining the efficiency and reliability of lithium-ion batteries (LIBs), which requires a comprehensive understanding of the intertwined phonon thermal t...
Bandgap modulation in self-limited two-dimensional Ga2O3 films via defect engineering
We demonstrated the controllable exfoliation of two-dimensional gallium oxide (2D-Ga2O3) thin films via a touch printing process that leverages the self-limiting oxidation behavior of liquid gallium....
Soft x-ray shielding characteristics of natural wood films with varying densities evaluated using a Ga2O3 Schottky diode detector
This study evaluates the x-ray shielding effectiveness of natural wood films with different densities using a Ga2O3-based Schottky barrier diode detector. Photocurrent suppression, as an indicator of...
Integrated telecom wavelength heralded single-photon source based on GHz gated detectors
We introduce a simple and flexible concept for a heralded—spectrally pure—single-photon source. The scheme uses a probabilistic photon-pair source pumped with a continuous-wave laser, whereby a rapid...
Negative differential photoresistance for optically tunable resonator in a 2D Nb3I8 tunnel junction
Negative differential resistance (NDR) offers a compact route to sustain and condition radio frequency resonators, and is also exploited in logic and neuromorphic circuits. However, electrically tunab...
Silicon nitride integrated electro-optic absorption modulator
Silicon nitride (SiN) is currently the most prominent platform for photonics in the visible and near-IR wavelength bandwidth. However, realizing fast electro-optic modulators, the key components of an...
Zintl-phase Mg3Sb2 as an emerging infrared photodetector material on silicon
Infrared (IR) photodetectors integrated on Si are in critical demand for Internet of Things (IoT) and AI applications. We repositioned the Zintl-phase compound Mg3Sb2, widely known as a high-performan...
High-throughput cell manipulation using low-frequency quasi-Scholte wave-based acoustofluidics
High-throughput and biocompatible acoustofluidic manipulation of living cells and microparticles is essential for applications in cellular medicine, tissue engineering, and drug screening. Conventiona...
Mode couplings in multiplex holographic acoustic lenses
Multiplex holographic acoustic lenses, composed of stacked elastic layers, offer a pathway toward practical and versatile acoustic holography. The layered architecture regularizes the surface profile...
Sensitivity analysis of ultrasonics for measuring helium abundance and ortho-para hydrogen fraction
Helium abundance on Saturn remains a long-standing open question, limiting understanding of theories of planetary formation, and also holds relevance to atmospheric dynamics. Sensitivity analysis of a...
Effect of Mn-doping on high field energy storage properties of Ag(Nb,Ta)O3 epitaxial films on ⟨100⟩ SrTiO3
Single-phase epitaxial thin films of pure and 0.5 mol. % Mn-doped perovskite Ag(Nb0.45Ta0.55)O3 (ANT) were prepared by pulsed laser deposition on ⟨001⟩ oriented SrTiO3 substrates with (La0.5, Sr0.5)Co...
Gate-dependent modulation of rectification characteristics of organic electrochemical rectifiers
Organic Electrochemical Rectifiers (OECRs), derived from Organic Electrochemical Transistors, are promising components for flexible electronics and bioelectronic circuits due to their tunable rectifyi...
Interlayer coupling driven phase evolution in hyperbolic 1 <i>T</i> -TaS2 revealed by spectroscopic ellipsometry
Understanding how microscopic interactions control macroscopic phase transitions is central to quantum materials, where charge density waves (CDW), Mott-states, and superconductivity often compete. In...
<i>In situ</i> analysis of SiO2 films etched under cryogenic conditions using H2/F2/Ar gas mixture plasma
High aspect ratio hole etching processes require high-speed etching of SiO2 and Si3N4 films. Cryogenic etching significantly increases the etch rates of these two films by lowering the substrate tempe...