Applied Physics Letters
Articles in this Issue
Construction of Ni–P/TiO2 Schottky heterojunction via photo-deposition to enhance photocatalytic hydrogen evolution activity
Photocatalytic hydrogen evolution (PHE) is sustainable and environmentally friendly. Titanium dioxide (TiO2) is commonly chosen as a photocatalyst of PHE due to its non-toxicity, robust stability, and...
Electro-chemo-mechanical deterioration of high-dose electron irradiated Li1.3Al0.3Ti1.7(PO4)3 electrolyte
Solid-state electrolytes (SSEs) hold promises for aerospace and satellite applications, owing to their high-voltage and low-temperature stability. However, concerns about electrochemical degradation u...
High performance BAW resonators with improved AlN thin films quality based on BaF2 buffer layer
The quality of AlN thin films has an important effect on the performance of bulk acoustic wave (BAW) resonators. In this work, the low lattice mismatch of BaF2 buffer layer with AlN thin films was emp...
A flexible multi-gate organic electrochemical synaptic transistor for image processing
In this study, a P3HT-based multi-gate frequency-dependent synaptic transistor is fabricated, which demonstrates significant advantages in mimicking the transmission characteristics of biological syna...
Strain-engineering spin-valley locking effect in altermagnetic monolayer with multipiezo properties
Recently, altermagnetism (AM) in condensed matter systems has attracted much attention due to the physical properties arising from alternating spins in both real space and reciprocal space. In our wor...
Formation and stability of Ge nanocrystals in polymorph converted Ga2O3: Temperature-driven journey
The influence of germanium (Ge) implantation on β-Ga2O3 followed by ex situ annealing through polymorph conversion in air at various temperatures (600–1100 °C) is studied. Atomic resolution aberration...
Physics-informed neural networks for phase-field simulation in designing high energy storage performance polymer nanocomposites
Dielectric polymers for electrostatic energy storage are used in modern electronic and electrical systems, and their performance can be significantly enhanced through doping with ultralow content nano...
Public quantum network: The first node
We present a quantum network that distributes entangled photons between the University of Illinois Urbana-Champaign and a public library in Urbana. The network allows members of the public to perform...
Label-free 3D optical angiography via time-frequency domain analysis of focal modulated dynamic blood flow
Accurate three-dimensional (3D) blood flow imaging with high spatiotemporal resolution and significant detection depth is essential for studying vascular structure-related diseases. In this Letter, we...
Acoustic levitation of super-wavelength elastic films using ultrasound phased arrays
We present a method for levitating films with a surface size larger than the wavelength using airborne ultrasound phased arrays. A typical example is a polyimide film with a side length of 40–50 mm an...
Tunneling photo-thermoelectric effect in monolayer graphene/bilayer hexagonal boron nitride/bilayer graphene asymmetric van der Waals tunnel junctions
Graphene exhibits a pronounced photo-thermoelectric effect (PTE) in its in-plane carrier transport and has attracted attention toward various optoelectronic applications. In this study, we demonstrate...
Tuning the interfacial transport behavior in a superconducting van der Waals heterostructure
The interaction between the metallic and superconducting components at the interface of superconductor–normal metal (S-N) systems enables a variety of quantum phenomena, including the Josephson effect...
Enhanced current-induced torque efficiency in Pt/Co/Tb/Cr structures through the synergistic action of orbital torque effect
We investigated the impact on the spin–orbit torque (SOT) efficiency by varying the thickness of the Cr and Tb layers in the Pt/Co/Tb/Cr system. The harmonic Hall voltage measurement shows that the Tb...
Realizing the key role of magnetic domain walls in magnetic field-enhanced oxygen evolution reaction
Understanding the relationship between magnetic structures (magnetic domains and domain walls) and enhanced activity is crucial for elucidating the mechanism behind magnetic field-assisted oxygen evol...
Enhancing contact triboelectrification by coupling interfacial spontaneous polarization and permittivity manipulation
The electricity generation of triboelectric nanogenerators (TENGs) originates from charge transfer enabled by contact electrification. However, the inherent barrier between two contacting surfaces ham...
Green, efficient, and controllable preparation of In2O3 uniformly modified MoS2 nanoflowers for methanol detection
In2O3 uniformly modified MoS2 (In2O3/MoS2) nanoflowers were synthesized via a green, efficient, and controllable normal-pressure microwave-assisted route and a subsequent calcination process, using Mo...
High-efficient spin injection in Co/GeSn with ferromagnetic resonance driven spin pumping
Germanium tin (GeSn) is one of the candidates for spintronic materials owing to its tunable spin–orbit interaction and barrier height with increasing the Sn content. However, as a potential spintronic...
Direction tunable singly polarized excitons in wurtzite monolayer
The optical response with tunable direction and carrier transport are highly desirable for optoelectronic devices. Here, we find a switchable direction dependent singly polarized exciton with E∥x or E...
Crystal structure manipulation to achieve better thermoelectric performance in Te-substituted GeSe
GeSe has recently gained attention for its structural similarity to SnSe, an excellent thermoelectric material. However, for the orthorhombic GeSe, the maximum zT is limited to ∼0.2 at 700 K. A signif...
Thermal emission modulation of fabrication-friendly, free-form metasurfaces via explainable deep-learning Bayesian optimization
Free-form metasurfaces with superimposed transformative meta-atoms provide a versatile platform to realize cross-band thermal emission control. However, design and manufacturing of free-form metasurfa...
Asymmetric contact structure enables fast response of Bi2O2Se photodetectors
The near-infrared (NIR) photodetector is an important component in the realm of photodetectors. Bi2O2Se, with its narrow bandgap of 0.8 eV, has emerged as a promising candidate for NIR detection. Howe...