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SAVE THE - PowerPoint PPT Presentation
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SAVE THE. BUT… HOW?. Solar Energy!. What about feasibility?. Today’s solar cells aren’t good enough!. We have to save the world. Here’s how. Presentation by Valerie Ding. What does that even mean?. Quantum dot solar cell . Image taken at Bent Lab (Stanford) by VD.
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Presentation Transcript
What about feasibility?
- Today’s solar cells aren’t good enough!
Planetware Online Shop.
Their Materials
- CdSeS quantum dots + TiO2 substrate = quantum dot solar cell
- (1) Make the quantum dots!
- (2) Deposit the quantum dots onto TiO2!
- (3) Design and make the solar cell!
Their Research Goal
- “Test the concept of a rainbow solar cell”
- Examine “the influence of Se:S (selenium to sulfur) ratio in tuning…quantum dots”
Arainbow solar cell
is able to harness much
of the wavelengths
in visible light and more.
Image courtesy
Inhabitant.com
Their Findings
Selenium to sulfur ratio affects the colors that the quantum dots emit
At right is the proposed multilayer quantum dot solar cell. FTO = flourine doped tin oxide
So what?
- That is always the question.
- Santra and Kamat have determined important correlations between quantum dot material and photovoltaic performance that can bring quantum dot solar cells to the next level.
- …Saving the world!
