AbstractHigh-power, low-threshold stable single-mode operation buried distributed feedback quantum cascade laser by incorporating sampled grating emitting at λ ~ 4.87 μm is demonstrated. The high continuous wave (CW) output power of 948 mW and 649 mW for a 6-mm and 4-mm cavity length is obtained at

AbstractA facile hydrothermal polymerization method has been developed for the preparation of monodisperse carbon spheres (MCSs) using the triblock copolymer F108 as surfactant. The synthesis is based on the ammonia-catalyzed polymerization reaction between phenol and formaldehyde (PF). The resultan

AbstractGermanium (Ge) negative capacitance field-effect transistors (NCFETs) with various Zr compositions in Hf1−xZrxO2 (x = 0.33, 0.48, and 0.67) are fabricated and characterized. For each Zr composition, the NCFET exhibits the sudden drop in some points of subthreshold swing (SS), which is induce

AbstractWe compare the electrical performance of germanium pMOSFETs that receive a GeOx passivation layer formed by either ozone post‑oxidation (OPO) or plasma post‑oxidation (PPO). Both processes are applied to an Al2O3/n‑Ge (001) substrate, followed by a 5‑nm HfO2 gate dielectric deposited in situ

AbstractFlexible transparent conductive electrodes are essential component for flexible optoelectronic devices and have been extensively studied in recent years, while most of the researches are focusing on the electrode itself, few topics in material green and recyclability. In this paper, we demon

Abstract A new enhancement‑mode vertical GaN field‑effect transistor (FET) incorporating a two‑dimensional electron gas (2DEG) channel and a substrate pattern (SP) is presented. By tailoring the SP width and height, the device achieves a lower on‑state resistance (RON) while maintaining a high break

AbstractIn the present report, three different shapes of chitosan-capped gold nanoparticles (nanospheres, nanostars, and nanorods) were synthesized to investigate the effects of shape on cytotoxicity and cellular uptake in cancer cells. Green tea extract was utilized as a reducing agent to reduce go

AbstractSoybean biomass, a renewable feedstock, has been converted into luminescent nano‑biomass dots (NBDs) through a heating‑free ultrasonic extraction strategy. The resulting amorphous particles possess an average diameter of 2.4 nm and emit bright blue fluorescence with a quantum yield of 16.7 %

AbstractWe fabricated bilayer capacitors comprising 5 % Mg‑doped LiNbO₃ single‑crystal films (200 nm) and ultrathin Al₂O₃ tunnel switch layers (2–6 nm) using ion slicing and atomic‑layer deposition. Transient domain‑switching current measurements show that the P‑V hysteresis loops become symmetric u

Abstract Achieving a high‑performance flexible electrode demands a careful balance between optical transmittance and electrical conductivity. In this study, we demonstrate that gold nanomesh (AuNM) electrodes fabricated via versatile nanosphere lithography (NSL) achieve this balance by limiting the

AbstractUsing density functional theory (DFT), we examined the adsorption of nine atmospheric gases—N2, O2, CO2, H2O, CO, NO, NO2, NH3, and SO2—on pristine hexagonal boron arsenide (BAs). We evaluated multiple adsorption sites, calculated adsorption energies, charge transfer, and work functions, and

AbstractIn this paper, approaches for the realization of high-resolution periodic structures with gap sizes at sub-100 nm scale by two-photon polymerization (2PP) are presented. The impact of laser intensity on the feature sizes and surface quality is investigated. The influence of different photose

Abstract Among transition‑metal hydroxides, cobalt‑ and nickel‑based compounds are celebrated for their exceptional electrochemical performance, especially in non‑enzymatic sensing. Binary Co‑Ni hydroxides combine the redox versatility of both metals, yielding outstanding activity for glucose detect

AbstractPolydimethylsiloxane (PDMS) nanofluidic devices are essential in medical, chemical and biological sensing. Here we introduce a novel, cost‑effective AFM tip‑based nanomilling method that produces sub‑100‑nm nanochannels with tunable dimensions by adjusting the driving voltage and frequency o

AbstractBiFeO₃ powders with Al concentrations of x = 0, 0.025, 0.05, and 0.1 (BFAxO) were synthesized hydrothermally. We investigated how Al substitution at the B‑site influences crystal structure, electrical behavior, and optical response. X‑ray diffraction (XRD) and Raman spectroscopy confirm that

AbstractIn this study, aluminum oxide (Al2O3) films were prepared by a spatial atomic layer deposition using deionized water and trimethylaluminum, followed by oxygen (O2), forming gas (FG), or two-step annealing. Minority carrier lifetime of the samples was measured by Sinton WCT-120. Field-effect

AbstractAimTo study whether water formulation of the complex of 4-thiazolidinone derivatives with a PEG-containing polymeric nanocarrier enhances their pro-apoptotic action towards rat glioma C6 cells.MethodsMechanisms of antineoplastic effects of 4-thiazolidinone derivatives were investigated in vi

AbstractWe report a facile, ambient‑temperature cathodic plasma exfoliation approach that uses electrolyte ions to steer the architecture of graphene nanosheets (GNS). By selecting either aqueous NaOH or H₂SO₄, we obtain distinct sheet‑like or onion‑like GNS, respectively, as verified by SEM and TEM

Abstract Recent advances in nanotechnology have uncovered a rare class of materials that combine ferroelectricity and magnetism within a single ABO3 perovskite lattice. These multiferroics enable electric‑field control of magnetism (and vice‑versa), opening avenues for low‑power memory, sensors, an

AbstractWe present a synthesis of large-area single-layer graphene on copper substrate using a refined cooking palm oil, a natural single carbon source, by a home-made spray injector-assisted chemical vapor deposition system. The effects of the distance between spray nozzle and substrate, and growth