Different semiconductor materials: germanium, Physics

 

(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.

 

Posted Date: 7/7/2012 9:22:50 AM | Location : United States







Related Discussions:- Different semiconductor materials: germanium, Assignment Help, Ask Question on Different semiconductor materials: germanium, Get Answer, Expert's Help, Different semiconductor materials: germanium Discussions

Write discussion on Different semiconductor materials: germanium
Your posts are moderated
Related Questions
These are resistors with long term stability and close tolerances. These are used in measuring instruments. Wire wound resistors, produced with long term stabilities and with speci

Hi, Good day. I enjoy watching your physics videos, but I have a question and was wondering if you can answer it for me showing the working. the question is as follows: A flat truc

Emission spectrum of hidrogen is different from emission spectrum of sodium.Why? Ans) Because, in sodium atom there are already many other electrons present in the atom aother than

The plates of a parallel plate capacitor are 5 mm apart and 2 m 2 in area. The plates are in vacuum. A potential difference of 10000 Volts is applied across the capacitor. Calcu

what are the structure of the seeds

What is the acceleration due to gravity and does the number ever change on earth

A drunkard is walking along a straight road.he takes 5 steps forward and 3 steps backward and so on.each step is one meter long and takes one second.there is a pit on the road 11 m

when p type and n type semiconductor are joined or connected it is called p-n junction...in p-n junction the holes from p-type diffuse to n-type and vice versa....an finally a depl

When a hard element is suspended from an axis and made to oscillate about that, then it is known as compound pendulum. C = Initial position of center of mass C' = Position of

what is the use of muslin bag in a dry cell