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This speaks to that: https://www.nextbigfuture.com/2018/11/self-assembled-carbon-nanotube-antennas-for-solar-power-revolution.html
They say they have already achieved 43% efficiency, which is
close to double the photon conversion efficiency.
Will be interesting to watch.
bp
<part15sbs{at}gmail{dot}com>
On 11/25/2018 2:30 PM, Chuck McCown
wrote:
I would think that they would have an issue with
polarization and wavelength. Broad band of wavelengths in
sunlight at random polarizations. I guess mini bow tie
antennas could handle the broadband part. I wonder what the
electric field strength is of sunlight. If it was not high
enough it would not be rectifiable.
Sent: Sunday, November 25, 2018 3:09 PM
Subject: [AFMUG] OT: Solar panel efficiency
Most of you know this, but current technology silicon
solar panels are near their peak efficiency at 20-25 %
efficiency. There is a speculated peak efficiency of
around 29%, but we have no idea whether we can reach it or
not. The big issue is that only a fraction of the photons
that hit the silicon substrate get electrons to move (they
create electron holes in fact).
However... What if we approach the energy conversion a
different way. We know from college (high school?) physics
that light can be treated as particles (photons), but it
can also be treated as electromagnetic waves. What if we
could build tiny antennas that were sensitive to these
waves? What could we get for efficiency then? These folks
think they could get 90% efficiency, and they've already
demonstrated > 40% efficiency. Carbon nano-tubes.
Article 1
Article 2
--
bp
<part15sbs{at}gmail{dot}com>
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