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

Expression for the period of oscillation of a bar magnet, Derive a mathemat...

Derive a mathematical expression for the period of oscillation of a bar magnet in vibration magnetometer. How do you differentiate Dia, Para and Ferromagnetisms in matter.

How is radiation release from the body, Q. How is radiation release from th...

Q. How is radiation release from the body? Answer:- The body radiates energy by thermal conduction through the skin to the clothes, air, and so on around the body. A littl

Match the name of the phenomenon, Match the name of the phenomenon with the...

Match the name of the phenomenon with the explanation of the phenomenon. Answer: There isn't such thing as orthomagnetism. The prefixes can assist you out with the answ

Explain radioactivity and its problems and applications, Explain Radioactiv...

Explain Radioactivity and its Problems and Applications ? All radiation, electromagnetic as well as the kind from nuclear decay, takes its toll on living organisms. If the radiati

What is waveguide dispersion in optical fibres, What is waveguide dispersio...

What is waveguide dispersion in optical fibres? Waveguide dispersion (Δτ w ): Waveguide dispersion occurs because of the dependence onto the velocity of propagation of every

Compute the area moment of inertia, Use the numerical integration scheme di...

Use the numerical integration scheme discussed in class to compute the area moment of inertia of the circular section with a hole as shown below.  For mapping, use 4-node element

State the conditions to achieve total internal reflection, Q. State the con...

Q. State the conditions to achieve total internal reflection. For entire internal reflection to take place (a) Light should travel from a denser medium to a rarer medium an

How much work is the wind doing on the locomotive, A train locomotive whose...

A train locomotive whose mass is 1 x 106 kilograms is travelling EAST at a speed of 100 kilometers per hour.  A NORTHERLY wind is applying a force of 100 Newtons on the locomo

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