ENGRI111_17_solarcells - ENGRI 111 PHOTOVOLTAICS Issue...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
ENGRI 111 ENGRI 111 PHOTOVOLTAICS
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Issue Issue Fossil fuels produce CO 2 CO 2 does not let heat escape and produces the “green house” effect Climate changes
Background image of page 2
Are we Doing Enough? Are we Doing Enough? D.M. Kammen, Scientific American, Sept. 2006
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Photovoltaics Photovoltaics Solar cells/photovoltaics Phos – light Alessandro Volta – a pioneer in the study of electricity (1745 – 1827) www.climatechange.gc.ca
Background image of page 4
Solar Cells/Photovoltaics Solar Cells/Photovoltaics Semiconductors devices convert sunlight into electricity Sunlight could potentially supply ~5,000 times world energy needs Cost 20-25 cents/kW-hr
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Photosynthesis Photosynthesis photoscience.la.asu.edu/photosyn Solar Energy to Chemical Energy Plants, bacteria
Background image of page 6
Absorption Spectra Absorption Spectra photoscience.la.asu.edu/photosyn
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
How does photosynthesis work? How does photosynthesis work?
Background image of page 8
6CO 6CO 2 2 + 6H + 6H 2 2 O C O C 6 6 H H 12 12 O O 6 6 + 6O + 6O 2 2 http://www.sinauer.com/ Carbohydrates: high-calorie food ~ 1% conversion
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Let’s construct a solar cell Let’s construct a solar cell
Background image of page 10
Image of page 11
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/09/2009 for the course MSE 111 taught by Professor Giannelis during the Fall '07 term at Cornell University (Engineering School).

Page1 / 24

ENGRI111_17_solarcells - ENGRI 111 PHOTOVOLTAICS Issue...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online