ScienceDaily: Top Technology News |
- Discovery points way to graphene circuits: Materials scientists find new way to control electronic properties of graphene 'alloys'
- NASA's Juno spacecraft launches to Jupiter
- Mars' northern polar regions in transition
- Electrons and lattice vibrations: A strong team in the nano world
| Posted: 05 Aug 2011 10:58 AM PDT Materials scientists have made a fundamental discovery that could make it easier for engineers to build electronic circuits out of the much-touted nanomaterial graphene. In a new study, the researchers describe the findings that could make it possible for nanoelectronic designers to use well-understood chemical procedures to precisely control the electronic properties of "alloys" that contain mixtures of white and black graphene.  |
| NASA's Juno spacecraft launches to Jupiter Posted: 05 Aug 2011 10:25 AM PDT NASA's solar-powered Juno spacecraft lifted off from Cape Canaveral Air Force Station in Florida on Aug. 5, 2011 to begin a five-year journey to Jupiter. Juno's detailed study of the largest planet in our solar system will help reveal Jupiter's origin and evolution. As the archetype of giant gas planets, Jupiter can help scientists understand the origin of our solar system and learn more about planetary systems around other stars.  |
| Mars' northern polar regions in transition Posted: 05 Aug 2011 05:29 AM PDT A newly released image from the European Space Agency's Mars Express shows the north pole of Mars during the red planet's summer solstice. All the carbon dioxide ice has gone, leaving just a bright cap of water ice.  |
| Electrons and lattice vibrations: A strong team in the nano world Posted: 05 Aug 2011 05:29 AM PDT Using a newly developed type of spectroscopy, researchers have shown that electrons in a semiconductor are best described as a cloud with a size of a few nanometer (one nanometer is one billionth of one meter). The cloud size is determined by the interaction of the electron with vibrations in the crystal lattice.  |
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