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Post by Maui on Jul 7, 2010 15:49:43 GMT
Science magazine keeps sending me free issues, and the most recent (18 June 2010) is awesome. Tisdale et al (p. 1543) have resolved the inefficiency that, in today's solar cell, "...the liberated charges behave the same way whether they are excited right at the threshold (e.g., by visible light) or well above it (by ultraviolet light), which leads to any excess energy being dissipated as waste heat." (Summary by Stella Hurtley, p. 1449). The authors claim that their discovery can increase solar cell efficiency from around 31% to as high as 66%.
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Post by slh1234 on Jul 7, 2010 15:54:23 GMT
I'd be very interested in reading more about this. Thanks for the tip.
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Post by matt on Jul 7, 2010 16:31:57 GMT
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Post by poitsplace on Jul 8, 2010 0:47:20 GMT
Yep, and even the high(er) efficiency cells available today aren't cost effective. They'll eventually get there.
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Post by magellan on Jul 8, 2010 1:11:09 GMT
Yep, and even the high(er) efficiency cells available today aren't cost effective. They'll eventually get there. Geo-thermal was for many years a novelty, but now the ROI is down to a logical level. We are installing a system for our home right now. I don't see solar becoming an affordable option for many years however. |
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