Schottky diodes based on (2¯01) β-Ga2O3 substrates and (010) homoepitaxial layers were formed using five different metals: W, Cu, Ni, Ir, Pt. Based a comparison of the effects wet chemical surface treatments Ga2O3 diodes, it was established that treatment with an organic solvent, cleaning HCl H2O2, rinsing deionized water following each step yielded best results. barrier heights calculated from current–voltage (I-V) capacitance–voltage (C-V) measurements selected metals typically in range...

A highly selective and sensitive fluorescent Zn2+ sensor, 2,6-bis(2-hydroxy-benzoic acid hydrazide)-4-methylphenol (1), was designed synthesized. In aqueous THF (4 : 6 v/v) ligand 1 induces a 2 complex formation with respect to at physiological pH. This probe features visible light excitation(390 nm) emission (490 profiles, excellent selectivity responses for Zn2+over other competing biological metal ions Kd < pM2, LOD ng L−1 about 680 fold enhancement in intensity upon binding. It also...

The Schottky barriers of Ti, Mo, Co, Ni, Pd, and Au on (100) β-Ga2O3 substrates were analyzed using a combination current-voltage (J-V), capacitance-voltage (C-V), current-voltage-temperature (J-V-T) measurements. Near-ideal, average ideality factors for Ni 1.05–1.15, whereas higher (∼1.3) observed Pd contacts. Barrier heights ranging from 0.60 to 1.20 eV calculated J-V measurements the metals with low factors. C-V all conducted yielded barrier 0.78 1.98 eV. J-V-T Ti Co diodes 0.81 1.35 eV,...

Mesa structure junction diodes prepared via high-temperature ion implantation of Al+ (100 keV, 4.8×1014 Al/cm2) in n-type or N+ (90 and 180 0.9 1.3×1014 N/cm2) p-type β-SiC thin films were electrically characterized as a function temperature using current-voltage capacitance-voltage measurements. In either case, rectification was observed to the highest measurement 673 K. Closer examination device characteristics yielded diode ideality factors greater than 2. Additionally, log dependence...

A diformyl-<italic>p</italic>-cresol-8-aminoquinoline based probe exhibits dual colorimetric and fluorogenic properties on selective binding towards Mg²⁺and Zn²⁺. This could be made Mg²⁺over Zn²⁺in the presence of TPEN.

From an analysis of Pd contact Schottky diodes fabricated on (100) β-Ga2O3 wafers, in combination with data extracted from published work, we show that the barrier height inhomogeneity commonly observed has a strong correlation to temperature. For doping ∼5 × 1017 cm−3, arising inhomogeneous continues increase temperature ∼440 K followed by decrease upon further temperature, which is attributed bandgap narrowing semiconductor referred as Varshni shift. At this regime, characteristics...

A near-ideal and homogeneous β-Ga2O3 Schottky diode with Co contact for a doping level of ∼4.2 × 1017 cm−3 in the drift layer where Boltzmann approximation is valid reported. Unlike Si or GaN, thermionic emission shown to be dominant current conduction mechanism at this level. wide depletion region appended large built-in potential observed limit field current, which otherwise evident narrower bandgap semiconductor (such as GaN) diodes having similar carrier concentration region. The results...

The generation and study of metal–hydroperoxo/metal–peroxo (LCuII–OOH or LCuII–OO˙) complexes is a fascinating area research many chemical biochemical researchers, because their involvement as active intermediates in biological industrial catalytic oxidation processes. For this purpose we have designed bulky hexa-coordinating ligand with potential N4O2 donor atoms which could provide an opportunity to synthesize mononuclear Cu(II) complex aim utilize it the aromatic hydrocarbons by...

A novel diformyl-<italic>p</italic>-cresol (<bold>DFC</bold>)–thiosemicarbazide (<bold>TS</bold>) – based turn-on dual sensor that enables to determine, for the first time, stepwise formation constants.

In this study, electrical properties of four metals (W, Mo, Au, Ni) as Schottky contacts on n-type (100)-oriented β-Ga2O3 substrates grown by the Czochralski method are reported. The barrier heights for each metal contact were calculated from I-V and/or C-V measurements. Two methods used to cross check (φB) and ideality factors (n) height values measurements showed excellent agreement with other increased an increase in work functions. Some anomalous behavior Au contacts, which is similar...

Four dinuclear bis(μ-Cl) bridged copper(II) complexes, [Cu2(μ-Cl)2(LX)2](ClO4)2 (LX = N,N-bis[(3,5-dimethylpyrazole-1-yl)-methyl]benzylamine with X H(1), OMe(2), Me(3) and Cl(4)), have been synthesized characterized by the single crystal X-ray diffraction method. In these each center is penta-coordinated square-pyramidal geometry. addition to tridentate LX ligand, a chloride ion occupies last position of square plane. This also bonded neighboring Cu(II) site in its axial forming an SP-I unit...

A combination of a single crystal X-ray diffraction study and density functional theory calculations has been applied to bidentate Schiff base compound elucidate different cooperative non-covalent interactions involved in the stabilization keto form over enol one solid state. The structure reveals remarkable supramolecular assembly through cyclic hydrogen bonded dimeric motif. most interesting feature is formation ‘dimer dimer’ motif by π⋯π, CH⋯π N⋯O/O⋯O which π⋯π interaction involving...

A quantum chemical study has been made on the interaction of 5-aminolevulinic acid (ALA) drug molecule with boron-nitride and carbon nanotubes so as to use these nanomaterials drug-delivery vehicles.

Using a series of fundamental differential equations, including the Caputo derivative, which makes it easier to specify initial conditions we present fractional order concept leukemia in this study. The universality, positivity, and boundedness solutions are first established. local stability properties equilibrium studied using Routh-Hurwitz criteria. equation system has been solved unconventional finite difference techniques. Leukemia Fractional Order SICW model introduces several...

Ab initio based relativistic configuration interaction (CI) calculations are carried out to study the electronic spectrum of TlX (X = As, Sb, Bi) molecules. Potential energy curves and spectroscopic constants low-lying states these isomers have been computed. Dissociation energies ground-state molecules calculated compared with experimentally determined values. Effects spin−orbit coupling on properties studied. The zero-field splitting ground state has estimated from CI results. heavier...

Complete active space self-consistent field calculations (CASSCF) are carried out on the potential energy curves of three electronic states (2B2, 2A1, and 2B1) InSb2 GaAs2, 1A1 state InSb+2, seven SbIn2, six SbIn+2. In addition, permutational isomers AsGa2, investigated. We use multireference singles+doubles CI to optimize equilibrium geometries compute dissociation energies all these species. The ground SbIn2 were found be 2B2 2B1 symmetries, respectively, with isosceles triangular...

Ab initio based configuration interaction calculations using relativistic effective core potentials and compatible basis sets have been performed to study the electronic spectrum of silicon monosulfide molecule. Potential energy curves low-lying states SiS computed. Spectroscopic properties many observed such as X1Σ+, a3Σ+, d3Δ, b3Π, C1Σ-, e3Σ-, D1Δ, A1Π, E1Σ+ up 42 000 cm-1 calculated compared. The ground state is represented mainly by ...π4 (74%) ...π3π* (12%) configurations with re =...