0
It is in a range of 1eV.
(eV=electron volt)
What else can I help you with?
Give some Examples of direct and indirect band gap semiconductors?
direct band gap-semiconductor in which the bottom of the conduction band and the top of the valence band occur at the momentum k=0;in the case of d.b.s. energy released during band-to-band electron recombination with a hole is converted primarily into radiation (radiant recombination); wavelength of emitted radiation is determined by the energy gap of semiconductor; examples of d.b.s. GaAs, InP, ZnS, ZnSs, CdS, CdSe etc. indirect bandgap semiconductor --semiconductor in which bottom of the conduction band does not occur at effective momentum k=0, i.e. is shifted with respect to the top of the valence band which occurs at k=0; energy released during electron recombination with a hole is converted primarily into phonon; e.g. Si, Ge, GaP, GaAsp ,Ge etc, .
What are semiconductor diode laser describe with energy band diagram the construction and working of a semiconductor diode laser?
construction and working of semiconductor laser
Why the semiconductor behave like a insulator as a zero?
O K is absolute zero. At absolute zero, the electrons of the semi conductors are trapped and are immovable from their electron shell as they are in a low energy state. This makes the pure semiconductor an insulator. One must heat the semiconductor to give the electrons enough energy to move to free them from their electron shell, and thus conduct.
Why is silicon not used in fabrication of LED?
Silicon is an indirect band gap semiconductor
What is intrinsic conductor?
Does not exist.An Intrinsic semiconductor is pure substance where the band gap between the full and empty shells isn't very big (only a few eV)
Is graphene a semiconductor?
Graphene is not a semiconductor; it is a zero-gap semiconductor which means that it lacks an energy gap between the valence and conduction bands. This property makes graphene behave more like a metallic conductor rather than a traditional semiconductor.
What is the difference between the energy gap of a semiconductor and a superconductor?
Energy gap in a superconductor is not a constant but depends on temperature. Energy gap in a semiconductor is a fixed quantity which does not depend on temperature. The excited quasiparticles or cooper pairs are produced two at a time hence the gap is 2Delta0. In a semiconductor the gap is the energy needed to excite 1 electron into the conduction band. The ground state in a superconductor is made of superconducting cooper pairs , above the gap the electrons are unpaired , the cooper pairs have lower energy. Conduction takes place in the lower ground state in Superconductors , where in semiconductors the electrons conduct from the conduction band. In a superconductor the gap is tied to the fermi level , while in a semiconductor it is fixed to the lattice in reciprocal space.
What is the narrow-band semiconductor?
A narrow-band semiconductor is a type of semiconductor material with a small energy gap between its valence band and conduction band. This small energy gap allows for electrons to move easily between the bands, making it suitable for applications such as optoelectronics and telecommunications.
What is a difference between forbidden energy gap depletion region in semiconductor?
forbidden energy gap or energy gap or band gap or band or Eg is the gap between the top of the valance band and bottom of the conduction band. If we apply the energy equivalent to Eg then the electrons in valance band will jump to the conduction band. Ravinder kumar meena stpi n depletion region is the region in semiconductor where there is depletion of free charge carriers.Ravinder kumar meena stpi n
What is the energy band gap for germanium?
The energy band gap for germanium is around 0.67 electron volts (eV) at room temperature. This makes germanium a semiconductor with properties in between those of conductors and insulators.
What is the relationship between the valence and conduction bands in semiconductor materials?
In semiconductor materials, the valence band is the highest energy band occupied by electrons, while the conduction band is the next higher energy band that electrons can move into to conduct electricity. The energy gap between the valence and conduction bands determines the conductivity of the semiconductor.
What is the difference between the band structure of a semiconductor and that of a metal?
In a semiconductor, the band structure has a small energy gap between the valence and conduction bands, allowing for some electrons to move from the valence band to the conduction band when excited. In a metal, there is no energy gap between the bands, allowing electrons to move freely throughout the material.
What is the difference between direct and indirect energy?
The band gap represents the minimum energy difference between the top of the valence band and the bottom of the conduction band, However, the top of the valence band and the bottom of the conduction band are not generally at the same value of the electron momentum. In a direct band gap semiconductor, the top of the valence band and the bottom of the conduction band occur at the same value of momentum.In an indirect band gap semiconductor, the maximum energy of the valence band occurs at a different value of momentum to the minimum in the conduction band energy
What is the band gap of germanium?
.3 ev
Give some Examples of direct and indirect band gap semiconductors?
direct band gap-semiconductor in which the bottom of the conduction band and the top of the valence band occur at the momentum k=0;in the case of d.b.s. energy released during band-to-band electron recombination with a hole is converted primarily into radiation (radiant recombination); wavelength of emitted radiation is determined by the energy gap of semiconductor; examples of d.b.s. GaAs, InP, ZnS, ZnSs, CdS, CdSe etc. indirect bandgap semiconductor --semiconductor in which bottom of the conduction band does not occur at effective momentum k=0, i.e. is shifted with respect to the top of the valence band which occurs at k=0; energy released during electron recombination with a hole is converted primarily into phonon; e.g. Si, Ge, GaP, GaAsp ,Ge etc, .
Valence electron conductor also can be called?
A valence electron conductor can also be called a semiconductor. Semiconductors have a small but nonzero energy gap between the valence band and the conduction band, allowing them to conduct electricity under certain conditions.
What are the conditions for the fermi level to be exactly in the middle of the energy band gap of a semiconductor material?
For intrinsic semiconductors like silicon and germanium, the Fermi level is essentially halfway between the valence and conduction bands. You don't have to do anything; just keep the semiconductor intrinsic!
