Applied Physics Letters
Articles in this Issue
Bi2O3-doped Au–Ag quantum dots with prominent peroxidase-mimic activity for multi-channel response to Hg2+ and Ag+
A kind of Bi2O3-doped Au–Ag quantum dots (Bi2O3-Ag-Au@FA QDs) was developed by one-pot homogeneous reduction in this work. By virtue of the synergistic effect among Bi, Au, Ag, and folic acid (FA), Bi...
Tunable quasi-bound states in the continuum in reflective secondary grating metasurfaces for biochemical sensing
Rapid and precise detection of biomarkers is crucial for timely disease diagnosis. Conventional methods, such as immunohistochemistry and western blotting, lack rapid and quantitative capabilities. Th...
Realizing weakly supervised learning by physical information for rapidly and accurately predicting three-dimensional weak electromagnetic field of metallic metasurfaces and zero-shot inverse design
This work introduces a separable, complex-valued 3D Maxwell loss function to physically constrain a 3D U-Net. This framework enables the prediction of complete vectorial electromagnetic fields for met...
Assessment of elasticity distribution in the crystalline lens using optical coherence elastography
Optical coherence elastography (OCE) is a promising technique for evaluating the elasticity of ocular tissues. However, quantifying the mechanical properties of the crystalline lens remains challengin...
The rapid thermal annealing in hole transition layer amelioration for enhancing large-area perovskite solar cell <i>via</i> potential regulation and hole induction
The large-area Cs0.08FA0.92PbI3 solar cell (100 × 100 mm2) with NiO hole transport layers (HTLs) is prepared via the approach of rapid thermal annealing (RTA) auxiliary. The large-area Cs0.08FA0.92PbI...
Investigation of noninvasive deep-tissue pathogen inactivation using microwave room-temperature atmospheric pressure plasma jet
The microwave-induced room-temperature atmospheric pressure plasma jet (MW-RTAPPJ) offers a noninvasive therapeutic approach for deep-tissue treatment, targeting subdermal pathogens. Despite its clini...
High-sensitivity Sm:PIN-PMN-PT ultrasound transducer for biomedical imaging applications
Medical ultrasound imaging, a cornerstone of noninvasive diagnostics, relies critically on advanced piezoelectric materials to achieve high-resolution visualization and operational reliability, with t...
Impact of a thin AlN buffer layer on the characteristics of GaN high electron mobility transistors on a silicon substrate
The epitaxial structure of a GaN high electron mobility transistor (HEMT) on a silicon substrate typically involves a thick GaN buffer together with a graded AlGaN or superlattice transition layer (mo...
Optical pulling force on both right-handed and left-handed chiral particles above a complementary metamaterial
Light or electromagnetic waves carry momentum (ℏk) in the direction of their propagation, k. This can develop radiation pressure on any object it faces, enabling the ability to optically manipulate th...
Influence of hole trapping on the electroluminescence of Cu-In-Zn-S quantum dots
Charge dynamics plays a fundamental and critical role in the performance of quantum-dot light-emitting diodes (QLEDs). While extensive research has been conducted on charge dynamics in CdSe-based QLED...
SERS detection of DNA hybridization on a graphene oxide plasmonic nanoplatform: Influence of DNA sequence length
This study investigates DNA hybridization using surface-enhanced Raman spectroscopy (SERS) on a graphene oxide plasmonic nanoplatform. We examined polyA-polyT systems of varying lengths (10, 15, and 2...
Layer-dependent metamagnetic transitions in van der Waals antiferromagnet CrPS4
Understanding the magnetic transitions in van der Waals (vdW) magnets is crucial for their applications in future spintronic devices. While several vdW magnets such as CrI3 and MnBi2Te4 have been exte...
Terahertz cavity magnon-polaritons in Gd0.5Ho0.5FeO3 single crystals tuned with temperature and magnetic field
The strong coupling between photons and magnons, enhanced by an electromagnetic cavity, has garnered significant attention, particularly in the frequency range of terahertz (THz). The hybrid nature of...
Generation of a large-scale homogeneous DBD using polyethylene terephthalate as dielectric material in open air
Dielectric barrier discharge (DBD) in open air usually operates in a filamentary mode, which limits the widespread application of DBD technology in the industrial field. In this Letter, a large-scale...
Strain-tunable ferromagnetic to antiferromagnetic and half-metallic to ferroelectric phase transitions in a 2D bimetallic oxyhalide
The coexistence and tunability of ferroic orders in two-dimensional materials hold great promise for next-generation spintronic and memory devices. Here, based on first-principles calculations, we dem...
Signature of coupling of potentials in non-linear energy harvesters with enhanced figure of merit
This paper reports electromagnetically transduced multistable non-linear vibrational energy harvesters to exploit the combined dynamical effects of monostable and bistable non-linear potential energie...
Chirality inversion for tailoring light generation in nonlinear van der Waals metasurfaces
3R-phase molybdenum disulfide (3R-MoS2) multilayers are emerging as a compelling platform for nonlinear nanophotonics, owing to their high refractive index, intrinsically broken inversion symmetry, lo...
Ferroelectricity of wurtzite Al1<b>−</b> <i>x</i>Hf<i>x</i>N heterovalent alloys
Thin films of aluminum hafnium nitride (Al1−xHfxN) were synthesized via reactive magnetron sputtering for Hf contents up to x = 0.13. X-ray diffraction showed a single c-axis oriented wurtzite phase f...
High-performance pulsed light detector based on the transverse thermoelectric effect of the <i>c</i>-axis inclined BiCuTeO:Ag<i>x</i> films
The transverse thermoelectric (TTE) effect, arising from the anisotropic Seebeck coefficient of a material, demonstrates significant potential for applications in rapid-response pulsed light detection...
The manipulation of layer-coupled chiral edge states by interlayer interactions in Janus RuClX (X = F, Br) bilayers
The weak interlayer van der Waals (vdW) interactions in two-dimensional layered materials allow the layer degrees of freedom to be used as a quantum index and couple with the charge or spin of electro...
Phenomenology of altermagnets
Altermagnets have recently emerged as the third class of magnetic materials, sharing properties of both antiferromagnets and ferromagnets. Despite very small net magnetization, they show phenomena usu...
A bio-inspired neuromorphic pressure afferent nerve based on fully inkjet-printed synaptic transistor
Drawing inspiration from the biomechanical and neural motor systems of trap-jaw ants, we introduce an artificial mechanoreceptive afferent nerve (AMAN) designed for tactile perception, with applicatio...
Meta-waveguide-based computed tomography for terahertz super-resolution imaging
A lens-free terahertz computed tomography method based on metamaterial waveguide (meta-waveguide) is proposed. In this method, the meta-waveguide replaces the traditional terahertz lens or mirror. It...
Sub-nanometer ZrO2 capping Hf0.5Zr0.5O2 thin films for BEOL-compatible ferroelectric tunnel junction with giant electroresistance
Here, we report a high-performance ferroelectric tunnel junction (FTJ) built with thermal atomic layer deposition-processed 2.9 nm-thick Hf0.5Zr0.5O2 (HZO) and a 0.6 nm-thick ZrO2 capping layer atop b...
Angle-insensitive temporal multi-channel narrowband absorber using discrete photonic time crystals
The significant potential of time-varying media for manipulating electromagnetic (EM) waves has garnered extensive attention in recent years. By periodically modulating the EM properties of these time...