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

Draw the v-t graph of an automobile, Draw the v-t graph of an automobile th...

Draw the v-t graph of an automobile that accelerates uniformly from rest at t = 0.00 s and covers a distance of 180.0 m in 12.0 s.

Thomson''s atomic model, THOMSON'S ATOMIC MODEL:- According to Thomson'...

THOMSON'S ATOMIC MODEL:- According to Thomson's atomic model positive charge is distributed uniformly over the entire body of the atom while the electrons are embedded in it. S

Physics help, The driver of an SUV slammed on the breaks when he saw a tree...

The driver of an SUV slammed on the breaks when he saw a tree 52 m away blocking the road. The SUV slowed down at a constant rate of 4.0 m/s2 for 3.6 s before reaching the tree. Wh

Capacitors, What are capacitors used for in induction coils

What are capacitors used for in induction coils

What is neutral points , At the neutral position, magnetic field because of...

At the neutral position, magnetic field because of the bar magnet is just equal and opposite to the horizontal component of earth's magnetic field.

Evaluate with the direction of polarization of the polarizer, A polarizer (...

A polarizer (Polarization) consists of long-chain polymers aligned in a preferred orientation. How does that orientation evaluate with the direction of polarization of the polarize

Restitution for the ball hitting , A ball of mass 0.7 kg is dropped vertica...

A ball of mass 0.7 kg is dropped vertically from a height of 10 m onto a concrete floor. The ball is observed to bounce a number of times before coming to rest. The coefficient of

Simple harmonic motion, what is the displacement of the body when potential...

what is the displacement of the body when potential and kinetic energies are eqal?

What about iso 9000, What about ISO 9000? Again there considers being c...

What about ISO 9000? Again there considers being confusion about the ISO 9000 series of certifications. This ISO in essence is not a guarantee of good value and is not specifie

Good analogy for the movement of charge through a circuit, Question: Re...

Question: Regard as a high school built to handle 1500 students but attended by 2500 students. Between classes the halls are crowded with students moving to their next class. A

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