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

What force does every one exert, Regard as two charged particles. At a give...

Regard as two charged particles. At a given separation each one particle exerts a force of 12 N on the other. What force does every one exert on the other after someone moves the p

Advantages of integrated circuits over conventional circuits, Advantages of...

Advantages of Integrated Circuits (ICs) over conventional circuits: (1)  Very small size- thousand times smaller than discrete circuit. (2)  Very small weight due to miniatu

Component method, #question-the measurement of 30.43 degrees north of east....

#question-the measurement of 30.43 degrees north of east..

How is specific gravity defined, How is Specific Gravity defined? Speci...

How is Specific Gravity defined? Specific Gravity, SG, is a unit less quantity that provides the scientist or engineers an idea of how dense a substance is compared to water. T

Rayleigh-jeans law, Rayleigh-Jeans law For any blackbody at thermodyna...

Rayleigh-Jeans law For any blackbody at thermodynamic temperature T, the radiancy R onto a range of frequencies among nu & nu + dnu is provided by R = 2 pi nu 2 k T/c 2 .

Michelson interferometer, describe the construction and working of michelso...

describe the construction and working of michelson interformeter?

Principal section of a doubly refracting material, Describe principal secti...

Describe principal section and optic axis of a doubly refracting material.

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