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

Evaluate the frequency of the lowest note, The overall length of a particul...

The overall length of a particular wind instrument is 35.0 cm. The resonating air column vibrates as ina pipe that is open at both ends. (a) Find the frequency of the lowest not

Kelvin, kelvin; K (after Lord Kelvin, 1824-1907): The basic SI unit of...

kelvin; K (after Lord Kelvin, 1824-1907): The basic SI unit of thermodynamic temperature explained as 1/273.16 of the thermodynamic temperature of the triple point of water.

Can you explain normal mode oscillation, Can you explain normal mode oscill...

Can you explain normal mode oscillation? Compare between Q 1 and Q 2 mode oscillation

Explain transverse waves, Transverse Waves: The traveling waves in whic...

Transverse Waves: The traveling waves in which particles of the elastic medium vibrate about perpendicular to the direction of propagation of waves are known as transverse wave

Explain header and stretcher, Explain header and stretcher. Header ...

Explain header and stretcher. Header A brick laid with its length perpendicular to the direction of wall is known as a header. A course of bricks in which all the bricks a

Determine the inside plate temperature, A carbon steel plate (thermal condu...

A carbon steel plate (thermal conductivity = 45 W/m o C) (600 x 900 x 25) mm 2 is maintained at 310 o C. Air at 15 o C bellows over the hot plate. If convection heat transfer co-e

What is the magnitude of the magnetic induction, The magnetic vector potent...

The magnetic vector potential in a specific region is a constant vector having magnitude 4πX10 5 units and points along the positive x-axis. What is the magnitude of the magnetic

By whcih resistivity of conductors is most affected, Resistivity of conduct...

Resistivity of conductors is most affected by (A) Composition.       (B) Temperature. (C) Pressure.             (D) Current. Ans: Resistivity of conductors is most

Calculate uniform magnetic field, The greatest induced EMF will happen in a...

The greatest induced EMF will happen in a straight wire moving at constant speed by a uniform magnetic field. when the angle among the direction of the wire's motion and the di

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