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

Determine the change in entropy of the system, Two compartments each of 1 m...

Two compartments each of 1 m 3 capacity are connected by a valve and insulated from the surroundings and from each other. One compartment contains saturated steam at 683.6 kPa and

Which way does the lower pedal move relative to the ground, A bicycle is su...

A bicycle is supported so that it is stopped from falling sideways but can move forwards or backwards; its pedals are in their highest and lowest positions. A student crouches

What do you mean by spontaneous process, What do you mean by spontaneous pr...

What do you mean by spontaneous process? Give examples. What is path and state functions? Give examples.

IR frequencies of various functional groups, What are the ir frquencies of ...

What are the ir frquencies of various functional groups

How do these short-duration high-intensity bursts originate?, There is stro...

There is strong evidence that some short-duration gamma-ray bursts occur in systems with no star formation and where no massive stars are present, such as elliptical galaxies and g

Graphing motion - position, Graphing Motion - Position, Velocity and Accele...

Graphing Motion - Position, Velocity and Acceleration With graphing and/or the advent of calculus, not only can we calculate the average values like those calculated above, but

Explain astigmatism, Astigmatism: In this defect the surface of eye is ...

Astigmatism: In this defect the surface of eye is not perfectly spherical. The eye has different focal point in dissimilar planes and image of an object is not focused clearly

Hall effect, Hall effect: While charged particles pass through a tube ...

Hall effect: While charged particles pass through a tube that has both an electric field & a magnetic field (perpendicular to the electric field) exist in it, only certain vel

Brief about the directory representation in unix, Brief about the directory...

Brief about the directory representation in UNIX. A Unix directory is a file having a correspondence among filenames and inodes. A directory is a special file that the kernel m

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