Applied Physics Letters
Articles in this Issue
Hot phonon bottlenecks and the role of non-equilibrium acoustic phonons in III–V multi-quantum well systems
The hot phonon bottleneck effect is a promising mechanism for the realization of a true hot carrier solar cell. Prior work has assumed that the acoustic phonons created via the decay of longitudinal p...
Electrical characterization of hexagonal SiGe
We report electrical measurements on hexagonal silicon-germanium (hex-SiGe), a group IV alloy with direct bandgap. Electrical contacts are formed by metal alloying and doping is achieved using ion imp...
Electroluminescent performance and color tuning of heteroleptic Cu(I) complex via controlled doping and layer engineering
We report the electroluminescent properties of a well-known Cu(I) complex based on P∧P-type ligands—specifically bis[2-(diphenylphosphino)phenyl] ether (DPEphos)—and N∧N-type ligands, namely, 2,9-dime...
Compact multifunctional slit-type Helmholtz silencer for broadband sound attenuation with ventilation
Achieving efficient broadband sound attenuation at low frequencies without obstructing airflow remains a major challenge in duct acoustics and ventilated noise-control systems, due to the inherent tra...
Catalytic NiO/Ni/N-doped carbon nanoreactors for suppressing polysulfide shuttle: <i>In situ</i> Raman spectroscopic validation
The practical implementation of lithium-sulfur batteries remains hindered by polysulfide shuttling and sluggish redox kinetics. To address this, we synthesize NiO/Ni nanoparticles anchored on nitrogen...
Reduction of hole traps in GaN MOS structures by high-pressure oxygen annealing
The impact of annealing pressure on hole traps in SiO2/p-type GaN metal-oxide-semiconductor (MOS) structures was investigated. The density of fast-response interface hole traps (Nhump) was characteriz...
High-speed, self-powered, and position-sensitive photodetector based on ReS2/Si heterojunction
A van der Waals heterostructure combining rhenium disulfide (ReS2) with silicon (Si) was constructed in this study to address challenges in photodetection applications. The ReS2/Si device demonstrated...
Experimentally establishing the optical dielectric function of 2D Janus TMDs
Janus transition metal dichalcogenide (TMD) monolayers exhibit unique optoelectronic properties, arising from their broken mirror symmetry and out-of-plane dipole moments, which distinguish them from...
High-intensity focused ultrasound (HIFU) based longitudinal shear wave elastography for tissue ablation planning
Accurately determining the margins of prostate cancer (PCa) during planning of endorectal high-intensity focused ultrasound (HIFU) ablation under ultrasound (US) imaging guidance is challenging. Shear...
Strain-engineered tunable negative Poisson's ratio and anisotropic mechanics in tellurene
Two-dimensional (2D) auxetic materials exhibiting negative Poisson's ratio (NPR) have garnered significant attention for their exceptional mechanical properties, which enable groundbreaking applicatio...
Strain tuned spin excitations in Janus Cr2I3Cl3 monolayer
The Dzyaloshinskii–Moriya interaction (DMI) plays a key role in stabilizing noncollinear spin textures. However, the nearest-neighbor DMI is usually prohibited in certain hexagonal lattice materials d...