Low field ion mobility spectrometry-mass spectrometry (IMS-MS) techniques exhibit low orthogonality, as inverse mobility often scales with mass to charge ratio. This inadequacy can be mitigated by adding vapor dopants, which may cluster with analyte ions and shift their mobilities by amounts independent of both mass and mobility of the ion. It is therefore important to understand the interactio...

Low-energy density has long been the major limitation to the application of supercapacitors. Introducing topological defects and dopants in carbon-based electrodes in a supercapacitor improves the performance by maximizing the gravimetric capacitance per mass of the electrode. However, the main mechanisms governing this capacitance improvement are still unclear. We fabricated planar electrodes ...

Heteroatom-doped carbon matrices have been attracting significant attention due to their superior electrochemical stability, light weight and low cost. Hence, in this study, various types of heteroatom, including single dopants of N, B and P and multiple dopants of B-N and P-N with a carbon matrix were synthesized by an innovative method named the solution plasma process. The heteroatom was dop...

Solution-based ZnO nanorod arrays (NRAs) were modified with controlled N doping by an advanced ion implantation method, and were subsequently utilized as photoanodes for photoelectrochemical (PEC) water splitting under visible light irradiation. A gradient distribution of N dopants along the vertical direction of ZnO nanorods was realized. N doped ZnO NRAs displayed a markedly enhanced visible-...

The enhanced photocatalytic performance of doped graphene (GR)/semiconductor nanocomposites have recently been widely observed, but an understanding of the underlying mechanisms behind it is still out of reach. As a model system to study the dopant effects, we investigate the electronic structures and optical properties of doped GR/Ag3PO4 nanocomposites using the first-principles calculations, ...

Ionised and total magnesium concentrations were determined in the serum of different groups of patients suffering from renal or hepatic diseases. Ionised magnesium was measured by Microlyte 6 (KONE, Espoo, Finland) and total magnesium by atomic absorption spectrometry. In renal insufficiency ionised and total magnesium concentrations were almost equally increased. In proteinuria with a normal g...

The properties of semiconductors can be crucially impacted by midgap states induced dopants, which native or intentionally incorporated in the crystal lattice. For Bernal-stacked bilayer graphene (BLG), has a tunable bandgap, existence dopants been conjectured, but never confirmed experimentally. Here, we report scanning tunneling microscopy and spectroscopy results, supported tight-binding cal...

A new model for incomplete ionization of dopants in Si is presented, where the Fermi level free carriers may displace with respect to case full activation dopants. The curves ratio free-carrier density and active-dopants vs doping, which are calculated at partial model, overlap exactly same quantity a reported model. Calculations performed without parameterizations states occupancy probability ...

Electron transport in bilayer phosphorene is studied using the first-principles and nonequilibrium Green’s function formalism. We have explored interlayer properties of a vertically stacked structure with paired substitutional doping. The electron are calculated compared doping, which shows tunable anisotropic nature doped I–V characteristics. Further, to understand role played by dopants, quan...

background : we assessed the effects of cisplatin-based chemotherapy, magnesium supplementation, probable contributory factors such as cisplatin cumulative dose and dose per cycle on serum magnesium levels. methods : in this prospective randomized study, serum magnesium levels of 59 newly diagnosed adult patients receiving cisplatin-based chemotherapy were studied. the patients were randomly al...