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

Determine the state of polarization, A light is evaluated by a rotating Nic...

A light is evaluated by a rotating Nicol showed no variation of intensity. Determine the state of polarization?

Practical, We here at Brilliant assume that you work through these problems...

We here at Brilliant assume that you work through these problems using some sort of writing utensil. Take your pen or pencil, balance it on its tip, and let go. It falls over. How

Cosmic background radiation, Cosmic background radiation; primal glow T...

Cosmic background radiation; primal glow The background of radiation typically in the frequency range 3 x 10 11 to 3 x 10 8 Hz discovered in space in the year of 1965. It is

Thermal physics, how much power is radiated by a tungsten sphere of radius ...

how much power is radiated by a tungsten sphere of radius 16cm at a temperature of 25 degrees Celsius emissivity is 0.35

MRI MACHINE, WHY HEATER IS KEPT IN CONTROL ROOM OF MRI? IS IT KEPT ON ALL T...

WHY HEATER IS KEPT IN CONTROL ROOM OF MRI? IS IT KEPT ON ALL THE TIME OR IT CAN BE TURNED OFF AT NIGHT AND RESTARTED AT MORNING

Torque, how to find the direction of torque

how to find the direction of torque

Damped and undamped eletromagnetic waves , What is damped and undamped elet...

What is damped and undamped eletromagnetic waves Ans) A damped wave is a wave whose amplitude of oscillation decreases with time, eventually going to zero.

Explain causes of low power factor, Causes of Low power factor The majo...

Causes of Low power factor The major causes of low power factor in the electric supply system are as follows. Due to reactive load Most of the AC motors used in i

Is a capacitor and a coil are linked in series, A capacitor and a coil are ...

A capacitor and a coil are linked in series. The capacitor is charged and allowed to discharge by the coil.  The current that will then flow by the capacitor-coil combination

Capacitors, Capacitors: When a voltage is applied to a capacitive circu...

Capacitors: When a voltage is applied to a capacitive circuit there is a change in the electric flux. The ease with which this change takes place is a measure of the capacitan

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