Light absorbing materials in solar cells, Physics

Assignment Help:

All solar cells require a light absorbing material contained within the cell structure to absorb photons and generate electrons via the photo voltaic effect. The materials used in solar cells tend to have property of preferentially absorbing the wave lengths of solar lights that reach the earth surface. However some solar cells are optimized for light absorption the wave length of solar beyond earth’s atmosphere as well as. Light absorbing material can often be used in multiple physical configurations to take advantage of different light absorption and charge separation mechanism. Many currently available solar cells are configured as bulk material that ARE subsequently cut into wafers and treated in a “top-down” method of method of synthesis silicon being the most prevalent bulk material. Other materials are configured as thin films inorganic layers, organic dyes, and organic polymers that are deposited on supporting substances. While a third group is used as quantum dots electron-confined neon particles embedded in a supporting matrix in a “bottom-up” approach.


Related Discussions:- Light absorbing materials in solar cells

Evaluate full-scale force, The drag on a submarine moving below from free s...

The drag on a submarine moving below from free surface (surface wave are not important) is to be determined by a test on a 1/15 scale model in a water tunnel. The velocity of the p

Electric potential, is the surface of a conductor is equipotential

is the surface of a conductor is equipotential

Explain fraunhoffer diffraction, In this case both source and screen are ef...

In this case both source and screen are effectively at infinite distance from the diffracting device. Basic types: Diffraction at single slit, double slit and diffracting gratin

Explain electromagnetism, Electromagnetism: A temporary magnet formed b...

Electromagnetism: A temporary magnet formed by winding a coil of insulated copper wire around a piece of shift iron is known as electromagnet. When current is passed it behaves

Describe power of a lens, Describe power of a lens. Write its SI unit. What...

Describe power of a lens. Write its SI unit. What do you mean by linear magnification produced by a lens in a direction perpendicular to its axis? Write down the mathematical expre

Derive the mathematical expression for normal shift, What do you mean by no...

What do you mean by normal shift? Derive the mathematical expression for normal shift produced when an object in a denser medium is viewed normally through air.

Describe escape velocity, Q. Escape Velocity An object will conquer the...

Q. Escape Velocity An object will conquer the force of gravity when its kinetic energy in the direction away from earth exceeds its potential energy. We find the smallest kinet

Explain simple pendulum, Explain Simple Pendulum The most familiar exampl...

Explain Simple Pendulum The most familiar example of a pendulum is a person on a swing.  The person will swing back and forth if pushed or pulled from where the swing naturally h

Define hydrogen rocket, Define Hydrogen Rocket? The reaction chamber ...

Define Hydrogen Rocket? The reaction chamber of a rocket engine is supplied with a mass flow rate m of sufficient oxygen and hydrogen to allow complete burning of the fuel an

Describe the image produced by the lens, Q. An object of size 3.0 cm is pla...

Q. An object of size 3.0 cm is placed 14cm in front of a concave lens of focal length 21 cm. Describe the image produced by the lens. What happens if the object is moved further aw

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