One of the most promising technologies for making inexpensive but reasonably efficient photovoltaic cells just got much cheaper. Scientists in Canada have shown that inexpensive nickel can work just as well as gold for one of the critical electrical contacts that gather the electrical current produced by colloidal quantum dot solar cells.
New inexpensive solar cell design
Last 5 posts in Science Updates
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- In solar cells, tweaking the tiniest of parts yields big jump in efficiency - January 20th, 2012
- Researchers' refinement increases solar concentrator efficiency - January 19th, 2012


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