Organic or polymer solar cells , Physics

Assignment Help:

 

Organic & polymer solar cells are made from thin films (typically 100nm) of organic semiconductor such as polymer and small molecule compounds like poly phenylene vinylene, copper phthalocyanine a blue or green organic pigment and carbon fullerenes. The energy conservation efficiency of data using conductive polymer are low at 4-5% efficiency for the best cells to data. Though, these cells could be helpful in some applications where mechanical flexibility and disposability are significant. The invention of conductive polymer has leaded the development of much cheaper cells which are based on inexpensive plastics. However all organic solar cells made of data suffer from degradation upon exposure to UV light, and hence have lifetimes which are far too short to be viable. The conjugated double bond systems in the polymers, which take the charge, are all the time susceptible to breaking up when radiated with shorter wavelengths. Additionally, most conductive polymer, being highly unsaturated and reactive, are highly sensitive to atmospheric moister and oxidation, making commercial applications difficult.


Related Discussions:- Organic or polymer solar cells

Define two dimensional wave , Energy is transmitted in a plane in two mutua...

Energy is transmitted in a plane in two mutually perpendicular directions. Example : Wave propagating on the surface of water.

Show the label pointing in given diagram, Match the name of every item give...

Match the name of every item given in the list below to the label pointing to that item in the diagram. Answer: I guess the only point I desire to stress here is that

Determine the axial and shear force, Determine the Shear Force in kN rounde...

Determine the Shear Force in kN rounded to 1 DP and Bending Moment in kN.m rounded to 1 DP at point C in the beam when the distance CB is P53 m. Then determine the axial force roun

Expression for current and impedance in series lcr circuit, Get a mathemati...

Get a mathematical expression for current and impedance in series LCR circuit. Reduce an expression for the resonating frequency of an LCR series resonating circuit.

Explain photolithography, Photolithography: As used in the manufacture of ...

Photolithography: As used in the manufacture of I.C.S, it is the process of transferring geometrical shapes on a mask to the surface of a silicon wafer. Photomask is prepared firs

What is the momentum of box when newtons acts on the box, A box is initiall...

A box is initially at rest on a horizontal, frictionless table. If a force of 10 Newtons acts on the box for 3 seconds, what is the momentum of the box at the end of the 3 second i

Show the conditions for total internal reflection, Show the conditions for ...

Show the conditions for total internal reflection to happen. Arrive at the relation between refractive index and critical angle. What do you mean by optical fibre? on what rules do

Derive superposition theorem, For the circuit shown in Figure, find, using ...

For the circuit shown in Figure, find, using the superposition theorem, (a) The current flowing in and the p.d. across the  resistor, (b) The current in the 8V battery and

What is neutral buoyancy, What is neutral buoyancy? Buoyancy is the net...

What is neutral buoyancy? Buoyancy is the net upward force experienced by an object submersed in a fluid. Pascal's principle dictates that fluid pressure on an object enhances

Classes of magnetic materials: diamagnetism, Diamagnetism is a basic proper...

Diamagnetism is a basic property of all matter, though it is generally very weak. It is due to the no cooperative behaviour of oepenrbiting electrons when exposed to an applied mag

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