Like snowflakes or fingerprints, no two quantum dots are identical. But a new etching method for shaping and positioning these semiconductor nanocrystals might change that. What’s more, tests at the National Institute of Standards and Technolo…
The sun provides more than enough energy for all our needs, if only we could harness it cheaply and efficiently. Solar energy could provide a clean alternative to fossil fuels, but the high cost of solar cells has been a major barrier to their wides…
CHAMPAIGN, Ill. — Illinois researchers have documented the first observations of some unusual physics when two prominent electric materials are connected: superconductors and graphene.
Led by University of Illinois physics professor Nadya Mason…
Washington, D.C. (December 14, 2010) — Moving a step closer toward quantum computing, a research team in the Netherlands recently fabricated a photodetector based on a single nanowire, in which the active element is a single quantum dot with …
They might just be the smallest Christmas tree decorations ever. Tiny spherical particles of gold and silver that are more than 100 million times smaller than the gold and silver baubles used to decorate seasonal fir trees have been synthesized by r…
PITTSBURGH — University of Pittsburgh researchers have created a nanoscale light sensor that can be combined with near-atomic-size electronic circuitry to produce hybrid optic and electronic devices with new functionality. The team, which also invo…
Researchers from North Carolina State University have developed extremely small microneedles that can be used to deliver medically-relevant nanoscale dyes called quantum dots into skin — an advance that opens the door to new techniques for d…
Evident Technologies, Inc. announced today that it has been issued United States Patent Number 6,571,028 for an all optical switch or optical transistor. The optical transistor is based upon a saturable absorber or switch using the company?s EviDots semiconductor nanocrystal quantum dot technologies. The optical switch has the potential to switch at speeds up to thousands of times faster than current generation optical switching.
For more information on Evident please visit www.evidenttech.com or contact us at [email protected] or call us 518-273-6266.
Researchers have developed a hybrid plastic that can produce light at wavelengths used for fibre-optic communication, paving the way for an optical computer chip. The material, developed by a joint team of engineers and chemists, is a plastic embedded with quantum dots – crystals just five billionths of a metre in size – that convert electrons into photons. The findings hold promise for directly linking high-speed computers with networks that transmit information using light – the largest capacity carrier of information available.
By using tiny quantum dots to create trails of altered molecules, UCLA researchers are developing a method of producing nanoscale circuitry for the molecular computers of the future that will use molecular switches in place of transistors.
“This technology, although still in the unpublished, proof-of-concept stage, could eventually lead to a relatively inexpensive means of patterning interconnections between the logic gates of a molecular computer,” according to Harold G. Monbouquette, professor of chemical engineering at UCLA’s Henry Samueli School of Engineering and Applied Science, who leads the team.
Using nanotechnology to stop HIV viruses from entering cells is the ultimate aim of a new project at the University of California, Davis. The researchers hope to create tiny particles that can interfere with the proteins that viruses such as HIV use to attach to cells.