Manufacturing Industry
Titania nanotubes and natural dye build efficient solar cells.(PROCESS TECHNOLOGY)
Advanced Materials & Processes, April, 2006
A solar cell made of titania nanotubes and natural dye may be the answer to making solar electricity production cost-effective, according to researchers at the Pennsylvania State University, University Park. The researchers are studying whether titania nanotubes could replace the particulate coatings in dye-sensitive solar cells.
Their initial attempt produced about 3% conversion of solar energy to electricity, but the inability to grow longer titania nanotubes was said to constrain conversion rate. "I think we can reach a 15% conversion rate with these cells, and other researchers do as well," says Prof. Craig Grimes. "That is 15% with a relatively easy fabrication system that is commercially viable." [ILLUSTRATION OMITTED] Conventional solar cells are...
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