David Kirkpatrick

March 28, 2008

Nano, solar and other KurzweilAI.net news

Different format today for the KurzweilAI.net newsletter highlights. There is so much good stuff I’m dropping bits directly from the newsletter. Today features solar, stretchy silicon, quantum computing news, self assembly, electricity producing nanotubes, and a possible successor to silicon — graphene.

Do follow the links.

From the newsletter:

*************************
More-Powerful Solar Cells
Technology Review Mar. 27, 2008
*************************
An MIT researcher has found a way
to improve the efficiency of
multicrystalline silicon solar cells
by 27 percent without raising costs,
making them as efficient as the more
expensive single-crystal cells. The
first cells incorporating the new
technology are predicted to cost
$1.65 per watt, compared to $2.10
per watt today….
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8278&m=39667

*************************
Stretchy circuits promise elastic
gadgets
NewScientist.com news service Mar. 27, 2008
*************************
University of Illinois at
Urbana-Champaign researchers have
made stretchable and flexible
silicon and plastic integrated
circuits that are just one
crystal–1.5 microns–thick. The
circuits are designed so that the
plastic, not the silicon, absorbs
most of the stress when the chips
are bent. Until now, integrated
circuits have been limited by…
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8277&m=39667

*************************
Silicon chips for optical quantum
technologies
KurzweilAI.net Mar. 28, 2008
*************************
Bristol University researchers have
demonstrated the world’s smallest
optical controlled NOT gate–the
building block of a quantum
computer–fabricated from silica
wave-guides on a silicon chip. The
team generated pairs of photons,
each encoding a quantum bit or qubit
of information. They coupled these
photons into and out of the…
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8276&m=39667

*************************
Nanomaterial turns radiation
directly into electricity
NewScientist.com news service Mar. 27, 2008
*************************
Two researchers–a former Los
Alamos National Laboratory engineer
and an Alabama A&M University
researcher–have developed highly
efficient nanotube-based tile
materials that can convert
radiation, not heat, from nuclear
materials into electricity. The
tiles are made of carbon nanotubes
packed with gold and surrounded by
lithium hydride….
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8275&m=39667

*************************
Self-Assembled Materials Form Mini
Stem Cell Lab
KurzweilAI.net Mar. 28, 2008
*************************
Northwestern University researchers
have built self-assembling thin-film
sacs able to hold human stem cells
for four weeks in culture, keeping
the cells separated while allowing
proteins to cross the membrane. This
new mode of self-assembly from a mix
of peptide amphiphiles and
biopolymers also can produce thin
films whose size and shape can be…
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8273&m=39667

*************************
Is Graphene the New Silicon?
KurzweilAI.net Mar. 28, 2008
*************************
University of Maryland physicists
have found that graphene conducts
electricity at room temperature with
less intrinsic resistance than any
other known material. Graphene, a
new material that combines aspects
of semiconductors and metals, is one
of the materials being considered as
a potential replacement for silicon
for future computing. The…
http://www.kurzweilai.net/email/newsRedirect.html?newsID=8271&m=39667

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