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

SEATBELTS, People believe that seatbelts are a MUST. But they think that th...

People believe that seatbelts are a MUST. But they think that they could increase the risk of other road users. Explain why it would be difficult to gather evidence for this idea..

Illustrate the mechanism of piezoelectric effect, Illustrate the mechanism ...

Illustrate the mechanism of piezoelectric effect? Mechanism of Piezoelectric effect: Piezoelectric and inverse piezoelectric consequences are only exhibited through certain

Motion, explain me acceleration

explain me acceleration

Motion in one dimension, two students walk in the same direction along a st...

two students walk in the same direction along a straight path at a constant speed one at .90m/s and another at 1.90m/s. assuming that they start at the same point and same time, ho

About taking reading of screw gauge, how to take readings from screw gauge ...

how to take readings from screw gauge and zero error of it

What is applied force, Applied Force (Fapp) : an applied force is a force t...

Applied Force (Fapp) : an applied force is a force that is useful to an object by a person or another object. If a person is approaching a desk across the room, there is applied fo

Explain prism, Prism: A transparent refractive device having of three r...

Prism: A transparent refractive device having of three rectangular and two refractive surfaces is known as prism. N = Sin (A + Dm) /2               Sin A/2 Where a is

Polarisation, applications of polarisation with explanation

applications of polarisation with explanation

Motor, illustrate the parts and function of motor

illustrate the parts and function of motor

What is the electric field in that region of space, Regard as a volume of s...

Regard as a volume of space in which the electric potential is 125,000 volts (at every point in the volume of space) and what is the electric field in that region of space? Ans

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