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3-Dimensional Solar Cells may enhance PV Efficiency
Inimitable 3-Dimensional solar cells, which capture
almost all light that hits them, may boost PV (Photovoltaic) systems'
efficiency while cutting down its mechanical complexity, weight, and
size.
The mechanism behind new 3-D (3-Dimensional) solar cells is that they
seize photons coming from sun rays through a string of tiny "tower"
structures. These structures have a close resemblance to skyscrapers
buildings in the grid of city streets.
"Our goal is to harvest every last photon that is available to our
cells," as per Jud Ready, senior research engineer for Electro-Optical
Systems Laboratory at GTRI (Georgia Tech Research Institute). Azonano
published the statement of Ready on April 17, 2007. "By capturing more
of the light in our 3D structures, we can use much smaller photovoltaic
arrays. On a satellite or other spacecraft, that would mean less weight
and less space taken up with the PV system."
Near term applications can use the cells for powering spacecraft. By
allowing efficiency enhancements in PV coating materials, the cells may
also transform the way in which solar cells are made for an extensive
range of applications.
"We have demonstrated that we can extract electrons using this
approach," said Ready. "Now we need to get a good baseline to see where
we compare to existing materials, how to optimize this and what's needed
to advance this technology."
There're numerous hurdles in the way of commercial production of new
cells, for instance, ability of these cells in surviving the 'launch and
operation' in space needs to be confirmed before their implementation in
such applications. Also, production techniques need to upgrade from the
2-inch laboratory prototype at present.
RNCOS report "Photovoltaics - A high potential market opportunity
(2005-2010)" notifies, "In spite of the high cost of photovoltaic
modules there's been significant investment, particularly in developed
countries, on R&D in photovoltaic. Over the past decade, PV industry
grew at an annual rate of 25-30% and this growth will be further
sustained by innovations in this sector, such as 3-Dimensional solar
cells."
Key issues analyzed in this report include: opportunities that exist
in the Photovoltaic industry, impact of the government support programs
on the overall industry, various application areas for PV technology,
potential emerging photovoltaic markets, drivers for photovoltaic
market, etc.
About RNCOS E-Services Pvt Ltd.:
RNCOS, incorporated in the year 2002, is an industry research firm.
It has a team of industry experts who analyze data collected from
credible sources. They provide industry insights and analysis that helps
corporations to take timely and accurate business decision in today's
globally competitive environment.
For more information visit:
http://www.rncos.com/Report/IM031.htmm
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