Other semiconductor materials, Physics

Assignment Help:

 

GALLIUM PHOSPIDE: It has band gap of 2.3ev. it can be used for light emitting diodes which can emit  green or red light. The red light is obtained with zinc or cadmium oxide doping.                                                               

SELENIUM: It is found in crystalline and non-crystalline form. It is used as rectifier material for photo voltaic cells and for xerographic printing. Selenium films are used as photo electric light meters. Its melting point is 2200C.

LEAD: it is soft heavy and bluish gray metal. It is highly resistant to many chemical actions but can corrode by nitric acid, lime and rotten organic substances. Lead and its compounds are toxic. It is mechanically weak it cannot withstand vibrations at high temperatures. It alloys easily with Tin and zinc and forms many commercial alloys, including solders and bearing metals.


Related Discussions:- Other semiconductor materials

Fraunhofer, EXplain fraunhofer diffraction due to a single slit and deduce ...

EXplain fraunhofer diffraction due to a single slit and deduce the position of maxima and minima and find their relative intensities

First law of black hole dynamics, Black-hole dynamic laws; laws of black-ho...

Black-hole dynamic laws; laws of black-hole dynamics first law of black hole dynamics For interactions among black holes & normal matter, the conservation laws of mass-

Electric lines of force, Definition: The electric field in a region is show...

Definition: The electric field in a region is shown by continues lines (also known as lines of force). Field line is an imaginary line along which a positive test charge will move

Horizontal and vertical components , a cat climbs 20 m directly up a tree. ...

a cat climbs 20 m directly up a tree. what is the horizontal component of the cat''s displacement

What are the properties of cathode rays, (i)Cathode waves always travel in ...

(i)Cathode waves always travel in straight path.   (ii) Cathode rays exert mechanical force on the objects they strike. (iii) Cathode rays make fluorescence. (iv)

Sara, a sinusodal transverse wave is travelling on a string any point on th...

a sinusodal transverse wave is travelling on a string any point on the string

Experiment of iron pan, Iron pan This is useful for many experiments in...

Iron pan This is useful for many experiments in chemistry. The lid of a preserving jar is looped with galvanized wire. The free end of the wire is embedded in a piece of wooden

Refractive index, show that in a glass prism that the refractive index n = ...

show that in a glass prism that the refractive index n = sin1/2(A+Dmin)/sin1/2A where a = refracting angle. hence if the angle of incidence i on oan air boundary is 60degrees. calc

Equations of linear motion for uniform acceleration, Given a particle movin...

Given a particle moving along a straight line with fixed acceleration a. Let u be the initial velocity of the particle and v be the velocity at time t. So by definition,

Fiber optics manufacture and fiber optics system manufacture, What is the d...

What is the difference among a fiber optics manufacture and a fiber optics system manufacture? It is a question that would sound silly in other industries although not in this

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