……………Fields and frequencies…..getting closer
The researchers took a page from the paper industry, using
one of its processes to make a flat mesh out of light-absorbing semiconductor
nanowires that, when immersed in water and exposed to sunlight, produces
hydrogen gas. The scientists say that the technique could allow their
technology to be scaled up at low cost.
ACS Publications, Abstract: The
generation of chemical fuels via direct solar-to-fuel
conversion from a fully integrated artificial photosynthetic system is an
attractive approach for clean and sustainable energy, but so far there has yet
to be a system that would have the acceptable efficiency, durability and can be
manufactured at a reasonable cost. Here, we show that a semiconductor mesh made
from all inorganic nanowires can achieve unassisted solar-driven, overall
water-splitting without using any electron mediators. Free-standing nanowire
mesh networks could be made in large scales using solution synthesis and vacuum
filtration, making this approach attractive for low cost implementation.
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