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

Explain static electricity, Static Electricity: 1. There are two types ...

Static Electricity: 1. There are two types of charges positive and negative. 2. Like charges repel and unlike charges attract each other. 3. Charged bodies make electric

Sketch the x-y intensity pattern, Consider the 4-f system below where an ob...

Consider the 4-f system below where an object is placed at the input plane and is illuminated by a plane wave   The object to the right is placed in the input plane where b

Electrostatics , find the number of electric lines of force that radiate ou...

find the number of electric lines of force that radiate outwards from one coulomb charge in vaccum

Explain ballistic flight, BALLISTIC FLIGHT:  "A flight in which a proje...

BALLISTIC FLIGHT:  "A flight in which a projectile is given a starting push and is permitted to move freely due to inertia and under the action of gravity is known as ballistic

Produce a schematic diagram of the system, Produce a schematic diagram of t...

Produce a schematic diagram of the system: The steam that leaves the super-heater is expanded from 130bar at 535°C to 25.2bar at 310°C in a high pressure turbine. The steam fr

Whta is mach number , Mach number is the ratio of velocity of source to the...

Mach number is the ratio of velocity of source to the velocity of sound.        Mach Number = Velocity of Source / Velocity of Sound  .

State the demerits of semiconductor diode over vacuum diode, Demerits of Se...

Demerits of Semiconductor Diode over Vacuum Diode (i)  It can't withstand high reverse voltage (ii)  It can't operate at fairly high temperatures.

Scintillator counter, Ask question #Minimum 10theory0 words accepted#

Ask question #Minimum 10theory0 words accepted#

Transition temperature, Transition temperature It is temperature (based...

Transition temperature It is temperature (based on the substance involved) below which a superconducting substance conducts electricity with zero resistance; as a result, the t

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