Prof Martin Kuball of the University of Bristol’s School of Physics said: “Semiconductors can be made to conduct positive or negative charges and can therefore be designed to modulate and manipulate current. However, these semiconductor devices do not stop with Silicon, there are many others...
The negative-U behavior is further confirmed by large scale density functional theory supercell calculations using different charge correction schemes. The results support the identification of the lifetime limiting Z_1/Z_2 defect to be related to acceptor states of the carbon vacancy. 展开 ...
During the deposition process, at a filament temperature of 1900°C, the presence of negative-charge carriers in the form of an electric current measuring 2μAcm is detected at the substrate position. A bias applied to the stainless steel substrate affects both the growth rate and the ...
When a fixed voltage is applied to the positive and negative electrodes of the electrochemical cell, reactions occur at the working electrode (anode) and the counter electrode (cathode). Taking the example of a carbon monoxide sensor, the chemical reaction can be represented by the following equat...
(2) the quantity of carbon that forests and wood products would hold with future harvesting and planting (harvest scenario). A positive value means emissions and a negative value means carbon removal. This calculation therefore factors in both ongoing forest growth in a harvest if not harvested ...
In this work, we investigate electron and proton transfer from carbon nitride that is photocharged to a various extent, while the negative charge is compensated either by protons or ammonium cations. Strong stabilization of electrons by ammonium cations makes proton-coupled electron transfer uphill, ...
By doping B in the carbon structure, the positive binding energy between the graphene sheet of the hard carbon and Na changes to a negative value. B3+ transfers three electrons to the graphene sheet, which leads to strong interaction between the Na atoms and the graphene sheet in the ...
At present, the atmospheric concentrations of carbon dioxide are well over 400 ppm, and the rise in global average temperature and related negative environmental consequences (increasing death, asthma, hospitalization, cancer, etc.), is attributed to the increase in greenhouse gas emissions, ...
Improving the symmetry of asymmetric supercapacitors using battery-type positive electrodes and activated carbon negative electrodes by mass and charge balance J. Electroanal. Chem. (2017) View more references Cited by (28) Cactus-Like Ni-Co/CoMn<inf>2</inf>O<inf>4</inf> composites on Ni foam...
The lead–carbon batteries were placed inside a constant temperature chamber, and the fixture of the battery testing system was attached to the positive and negative terminals of the lead–carbon battery. The battery testing system was controlled by a computer to conduct charging and discharging ...