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

Manufacturing of resistors , The following steps are taken in the manufactu...

The following steps are taken in the manufacturing of a resistor: (1)         PREPARATION OF SUBSTRATE: Substrate should hold the resistive element. It should be a good insula

VECTORS, EXPLAIN THE DIRECTION OF COMPONENTS

EXPLAIN THE DIRECTION OF COMPONENTS

Binding Energy per nucleon, The average energy needed to release a nucleon ...

The average energy needed to release a nucleon from the nucleus is known as binding energy per nucleon.   Binding energy per nucleon diffrence  Stability of nucleus

Evaluate the period of the vibrating object, Q. A twelve-slit strobe disc i...

Q. A twelve-slit strobe disc is rotated at the max stopping frequency for a vibrating object. The strobe is rotated at 4.0 Hz. (a) Evaluate the period of the vibrating object?

Rainstorm, why wouldn''''t you be electrocuted if you walked under an elect...

why wouldn''''t you be electrocuted if you walked under an electric transmission line during a rainstorm?

What is the magnitude & direction of the velocity of package, A helicopter ...

A helicopter is ascending vertically with a constant speed of 6 meters per second relative to the ground.  At the instant the helicopter is 60 meters above the ground it releases a

Draw the final image formed by two lenses, Draw the final image formed by t...

Draw the final image formed by two lenses: An optical imaging system consists of two positive lenses (L1 and L2). L1 has a focal length f 1 = 10 cm, and L2 has a focal length

Compute the emf induced between the ends of the wings, Q. An aircraft havin...

Q. An aircraft having awing span of 20.48 m flies at a speed of 40 ms -1 . If the vertical component of the earth's magnetic field is 2 X 10 -5 T, compute the emf induced between

What is the acceleration due to gravity on mars, Ngan has a weight of 314.5...

Ngan has a weight of 314.5 N on Mars and a weight of 833.0 N on Earth. a. What is Ngan's mass on Mars? b. What is the acceleration due to gravity on Mars, g Mars ?

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