Semiconductor materials: gallium arsenide, Physics

Assignment Help:

 

Energy gap: 1.4ev at room temperature

Its charactistics are very closely related to those of germanium. This is under stable, since Gallium is the third column neighbour and arsenic is the fifth column neighbour of Gallium in the periodic table. The melting point is 13000C, makes the production of gallium arsenide of electronic grade and externally difficult one. Horizontal furnaces using zone refining technique have proved the best, but the resulting material is still is not competitive with silicon and germanium in the purity or structural perfection. It is used for Scotty diodes, light emitting diodes, gun diodes, and lasers. 

 


Related Discussions:- Semiconductor materials: gallium arsenide

Define electromotive force, Electromotive force EMF (ξ) - This is the elec...

Electromotive force EMF (ξ) - This is the electrical energy from an ideal battery with no internal resistance.  It is also the open circuit value of a battery (no current is drawn

The stoplight- 1-dimensional kinematics, The Stoplight- 1-Dimensional Kinem...

The Stoplight- 1-Dimensional Kinematics A blue car moving at a constant speed of 10 m/s passes a red car which is at rest. This occurs at a stoplight the moment in which the li

Potential barrier, The potential difference created across the P-N junction...

The potential difference created across the P-N junction due to the diffusion of electron and holes is called potential barrier. For and for silicon    On the average the

Explain how tunneling takes place in forward bias, Describe how tunneling t...

Describe how tunneling takes place    When  tunnel  diode  is  forward  biased,  its  initial  behaviour  is  similar  to  that when it's reverse biased. Now, some of the fille

Motion, when a body is thrown upwards, its velocity becomes zero at the hig...

when a body is thrown upwards, its velocity becomes zero at the highest point. what will be its acceleration at this point?

Basic principles of spectrophotometry, Basic principles of spectrophotometr...

Basic principles of spectrophotometry: An absorbance spectrophotometer is an instrument that measures the fraction of the incident light transmitted through a solution

Explain fitting and fixture, Explain fitting and fixture. In the indust...

Explain fitting and fixture. In the industry, all terms are used indistinctly and frequently together. Several manufacturers describe fittings as the fixing elements, as connec

Explain basic principle of holography, Explain basic principle of holograph...

Explain basic principle of holography Holography is a new method of producing a 3D image of a 3Dobject. An ordinary photograph is only a 2D image of a 3D object. The photograph

Cadmium rods are provided in a nuclear reactor, Cadmium rods are provided i...

Cadmium rods are provided in a nuclear reactor. Why? Cadmium rods are given in nuclear reactors due to when we begin nuclear reactor then more energy is required for start the

Can fibers be bent at right angle, Can fibers be bent at right angle? F...

Can fibers be bent at right angle? Fibers cannot be bent at right angle. All fibers should be bent with a radius that will not alter the internal architecture of the fiber. For

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd