Different semiconductor materials: germanium, Physics

Assignment Help:

 

(1)         Melting point : 9360C

(2)         Atomic number : 32

(3)         Energy gap : 0.6ev

(4)         It is a gray metallic looking material.

(5)         It is brittle and glass like in its mechanical properties.

(6)         It crystallizes in the diamond cubic lattice.

(7)         It has an intrinsic resistivity of 47 O-cm but may be doped with antimony or arsenic to give N-type resistivity of 0.01O-m or less and with boron, Gallium or Aluminium to give P-type resistivity of 0.001 O-m or less. It is usually prepared in high purity crystals from for electronics used by pulling from the melt either vertically or horizontally. To obtain intrinsic material, impurities of active elements must be in the range of 1part/billion or less. The active impurity such as Gallium, indium, arsenic, and antimony tend to diffuse rather slowly in germanium. The donors diffuse faster than the acceptors. It discovers use in close infrared detection and in X-ray detectors.

 


Related Discussions:- Different semiconductor materials: germanium

Sound waves and the eardrum, Sound Waves and the Eardrum While a pressu...

Sound Waves and the Eardrum While a pressure wave reaches the ear and a series of high and low pressure regions impinge upon the eardrum. An arrival of a compression or high pr

Inertial and non inertial frame of refrence, What is inertial and non inert...

What is inertial and non inertial feame if refrence of reference?

Whomehole, What is whomehole and how it

What is whomehole and how it

What is dual character of light, Q. What is dual character of light? L...

Q. What is dual character of light? Light behaves as particles of energy in the higher energy region as well as as waves in the lower energy region.

Explain one ohm, 1 OHM: If a potential difference of 1 volt is applied ...

1 OHM: If a potential difference of 1 volt is applied across the ends of a conductor and the resulting current flowing by the conductor is 1 ampere, the resistance of the condu

Capacitor construction, Capacitor construction: FIXED CAPACITORS F...

Capacitor construction: FIXED CAPACITORS Fixed capacitors usually consist of sheets of metal foil between which is sandwiched the dielectric, or alternatively the metal, s

Explain newton’s law of cooling , It is described to this law, if the tempe...

It is described to this law, if the temperature T of the object is not very dissimilar from that of the environment T0, then rate of cooling -dT/dt is proportional to the temperatu

Explain displacement, Explain displacement x(t) is known as displaceme...

Explain displacement x(t) is known as displacement and it denotes the position of a body at time. If the displacement is positive then that body is to the right of the chosen

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