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It turns out that the bandgap of "bulk silver(I) oxide" is zero. There is no band gap. What this means is that silver(I) oxide, or Ag2O, is a conductor. The conduction band overlaps the valence band of the silver atoms, and the compound has, therefore, the ability to support the flow of current. But hold the phone. In a specially prepared (non-bulk) form, an Ag2O (with some much less stable AgO) thin film (very, very thin) is formed by deposition on a substrate. The product is then (gently) heat treated, and what emerges is a graduated matrix with more silver on the surface and a rapid transition to the silver oxide substrate. The silver layer is nanometer thick, and the resulting product has developed a band gap and exhibits some p-type semiconductive properties. And, as interesting as this is, the optical properties are even more attractive. This engineering feat has attracted attention and is being investigated because of the possibilities of application to optical memory. Activation energies are on the order of a few tens of thousandths of an eV.
What else can I help you with?
What is the bulk modulus of balsa?
The bulk modulus of balsa wood ranges from 1.1-1.5 GPa.
Why germanium semiconductor is used in hall effect experiment not silicon?
Germanium has higher electron and hole mobilities compared to silicon, making it more sensitive to small magnetic fields in Hall effect experiments. Additionally, germanium has a lower bandgap energy, which allows for the Hall voltage to be easily measured at room temperature. Silicon, on the other hand, has a higher bandgap energy leading to less sensitivity in detecting small magnetic fields.
What is the electrical conductivity of aluminum oxide?
Aluminum oxide has low electrical conductivity due to its insulating properties.
What is the bulk modulus of shale?
The bulk modulus of shale typically ranges from 15 to 30 GPa, depending on factors such as composition and porosity.
What is the bulk modulus of incompressible liquid?
The bulk modulus of an incompressible liquid is theoretically infinite, as it does not experience any volume change when subjected to external pressure. Since incompressible liquids are considered to have a constant volume, their bulk modulus is undefined.
When did Paolo Silveri die?
Paolo Silveri died in 2001.
When was Paolo Silveri born?
Paolo Silveri was born in 1913.
When was Anastasia Silveri born?
Anastasia Silveri was born on 1984-06-09.
What has the author Luciano Silveri written?
Luciano Silveri has written: 'Il teleriscaldamento' -- subject(s): Heating from central stations
What is importance of band gap in semiconductors?
bandgap has an importance role for conduction.if bandgap is max,the conduction of electron is min. and vice-versa.hence we can say that the bandgap desides the conductivity of any material(may be metal or nonmetal)
What is Zn0?
ZnO is the chemical formula for zinc oxide, a white powder commonly used in the production of rubber, paint, and sunscreen. It is known for its wide bandgap, making it useful in various applications including electronics and optical devices.
What is bifference between optical bandgap and semiconduct0r bandgap?
we all know that electrons,photons, phonons can excite an electron from valence band to conduction band...i think the main difference between electronic bandgap and optical bandgap is that in electonic its the energy required for an electron to move from the valence band to the conduction band.but in optical bandgap photons(packet of energy in the form of light waves) are assisting the electrons to move from valence band to conduction band.The difference between optical and electronic bandgap is more complexe actually. The optical bandgap is the one that can be measured using optical techniques (based on transmission and reflection, i.e. Tauc plot). However, this measurement does not take into account all traps you might have within the bandgap that can modify the energy required to move one charge carrier from the conduction band ans the conduction band. The electronic band gap (which is the one of interest in fine, in an integrated device) is measured under operation. Thus, for many devices (lasers, solar cells...etc.) the electronic bandgap (energy required to get the device working) can defer from the optical bandgap.
What is the bandgap of germanium?
The bandgap of germanium is approximately 0.67 electronvolts (eV) at room temperature. This means that germanium is a semiconductor material with properties that are intermediate between conductors and insulators.
What is the definition of optical and electrical bandgap?
Optical bandgap means bandgap estimated using optical means or characterization. In simple words, let a light of different energies incident on the material. The material absorbs some energies and transmits some energies (the detector measures this). The threshold energy at which the material starts absorbing light is "Optical Bandgap". In a similar manner, electrical bandgap means bandgap estimated using electrical means or characterization. Here instead of measuring what light is observed of transmitted. You make electrical contacts for the material and measure the current instead of optical absorption. The incident light is of course absorbed, and carriers (electrons and holes) are generated in proportion to absorption. We measure current (nothing but charge which is proportional to absorption) and this current too shoots up at a threshold energy i.e. electrical bandgap.
What are the indirect bandgap materials?
Some examples of indirect bandgap materials include silicon, germanium, and gallium arsenide. These materials have a bandgap structure in which electrons have different momentum in the conduction band compared to the valence band, making optical transitions less likely.
Whath happened if you mixed water with plutonium?
Nothing important at room temperature and with bulk plutonium; some formation of plutonium oxide.
What elements make up latter iron oxide?
Latter is not a specific stage or element name. Bulk or raw iron oxide has iron and oxygen in nonstoikiometric ratios between wustite, magnetite, hematite, and maghemite.
