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Why ordinary silicon diode does not emit light?
The energy band gap between the cathode and anode is too small to generate photons of higher energy than far IR.Silicon is opaque to visible light (and even IR).
What is gap flushness with respective to automobile industry?
Width of the space between two adjacent panels is called the Gap and the alignment of these panel is also known as Flushness.
What is the role of technology in depletion of moral value?
communication gap
How do you gap bosch plat 2 spark plugs for ptcruiser?
bosch platinum 2 spark plugs come pre-gapped and given a certain stock number to all vehicles meeting that particular gap requirement.
What is the spark plug gap setting for 1FZ-FE vx engine?
According to Haynes Manual, the specification for the spark plug of this engine is 0.032 inches or 0.813 mm
Energy Band gap value for calcium carbonate and barium carbonate?
Energy Band gap value for calcium carbonate and barium carbonate?
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 are the difference between direct and indirect band gap materials?
In a direct band gap the electron only needs energy to jump to the conduction band. In an indirect band an electron needs energy and momentum to jump to the conduction band
Which type of band gap does GaAs have?
Gallium Arsenide (GaAs) has a 2.5eV band gap (@ 295 K)
What is the energy band gap of germanium?
.3 ev
What is the band gap energy in si and ge?
at 300 Kelvin, silicon band gap is 1.11 eV, Germaium band gap is 0.66 eV.source: hyperphysics.phy-astr.gsu.edu/hbase/Tables/Semgap.html
What is the energy band gap of barium titanate?
1.92 ev
What is the forbidden energy gap?
it is the energy required to transfer an electron from valence band to conduction band, the external energy which is required is equal to the forbidden energy gap
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
According to band theory mg is an insulator while in practice it is a conductor why?
According to band theory , the energy gap between valence band and conduction band was high. But during heating the energy gap get decreased. this is the reason why the mg behaves as an conductor.
What is the gap between valance band and conduction band in a semi conductor?
Conduction band - The unfilled energy levels into which electrons can be excited to provide conductivity.Valence band - The energy levels filled by electrons in their lowest energy states.
Titanium dioxide is direct band gap or indirect band gap material?
Yes it is. Most Sn (tin) materials as semiconductors are direct band gap materials. Silicon on the other hand is an indirect band gap material.
