Difference between revisions of "Solar Cell Introduction"

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<swf width="500" height="400">http://depts.washington.edu/cmditr/media/opvanim.swf</swf>
<swf width="500" height="400">http://depts.washington.edu/cmditr/media/opvanim.swf</swf>


In the above animation light passes through the glass cover coated with transparent Indium Tin Oxide (ITO) and a PEDOT/PSS transport layer. A bulk heterojunction is made with polythiophene  and a C60 Fullerene derivative P3HT- PCBM and finally a bottom electrode made from aluminum. In the heterojunction the charge is separated creating an electric current.
In the above animation light passes through the glass cover coated with transparent Indium Tin Oxide (ITO) and a PEDOT/PSS transport layer. A bulk heterojunction is made with polythiophene  and a C60 Fullerene derivative P3HT- PCBM and finally a bottom electrode made from aluminum. In the heterojunction photons are absorbed and charge is separated creating an electric current.


===Energy Consumption===
===Energy Consumption===

Revision as of 11:21, 28 December 2009

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Organic Photovoltaics Concept Map

Organic Photovoltaics

A large OPV test cell built on glass substrate.

An organic solar cell is an electricity-generating device comprised of thin layers of conductors, and photoelectrically active organic compounds. This section is based on lectures presented by Professor Jean Luc Bredas at Georgia Tech in 2007, and by materials contributed from several other technical sources, including Department of Energy workshops on Solar Electric energy conversion.

We will look at the major processes in solar cells and overview of the organic solar solar cell.

<swf width="500" height="400">http://depts.washington.edu/cmditr/media/opvanim.swf</swf>

In the above animation light passes through the glass cover coated with transparent Indium Tin Oxide (ITO) and a PEDOT/PSS transport layer. A bulk heterojunction is made with polythiophene and a C60 Fullerene derivative P3HT- PCBM and finally a bottom electrode made from aluminum. In the heterojunction photons are absorbed and charge is separated creating an electric current.

Energy Consumption

There are serious issues inherent with the energy needs of this country. Even during slow economic growth we continue to use an ever-increasing amount of energy, and our energy consumption world-wide is projected to more than double by the middle of this century. Organic photovoltaic devices are an important emerging technology, part of a broad spectrum of "Generation III" photovoltaics, which promise to provide solar-to-electric energy conversion in portable, light-weight packages, at extremely low cost.

External Links

http://en.wikipedia.org/wiki/Energy_in_the_United_States

An informative lecture by Dr. Nate Lewis from CalTech who provides some perspective on energy consumption and alternative energy conversion technologies on the horizon: http://www.jpl.nasa.gov/events/lectures/feb08.cfm

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