Coating boosts nanowire efficiency and sensitivity: Promise for photodetectors and solar cells
digitaldownloadnow.infoArticle by at 2011-07-06 14:48:48
Categorized in Tech News,
By applying a coating to individual silicon nanowires, researchers have significantly improved the materials’ efficiency and sensitivity. The findings suggest that the coated wires hold promise for photodetectors and energy harvesting technologies like…
Researchers Patent Method to Grow Semiconductors on Graphene
Norwegian Univ. of Science and Technology researchers have patented, and are commercializing, semiconductive nanowires made from gallium arsenide grown on graphene, a hybrid material with competitive properties. Semiconductors grown on graphene are expected to become the basis for new types of device systems, and could fundamentally change the semiconductor industry.
The new patented hybrid material offers excellent optoelectronic properties, says Helge Weman, a professor in NTNU’s Department of Electronics and Telecommunications, and CTO and co-founder of the company created to commercialize the research, CrayoNano AS. “We have managed to combine low cost, transparency and flexibility in our new electrode,” he adds.
Read more: http://www.laboratoryequipment.com/news/2012/09/researchers-patent-method-grow-semiconductors-graphene
Transistor and logic gate made from undoped silicon nanowires
kurzweilai.netResearchers in France have fabricated a transistor and two types of diode from undoped silicon nanowires (SiNWs), and combined them into a NAND logic gate.
Nanometer-scale electronic devices fabricated from SiNWs are drawing significant attention in view of their reduction in size and potential application in electronics, optoelectronics, and biochemical sensing.
Penn Researchers Make First All-optical Nanowire Switch
upenn.eduComputers may be getting faster every year, but those advances in computer speed could be dwarfed if their 1’s and 0’s were represented by bursts of light, instead of electricity.
Researchers at the University of Pennsylvania have made an important advance in this frontier of photonics, fashioning the first all-optical photonic switch out of cadmium sulfide nanowires. Moreover, they combined these photonic switches into a logic gate, a fundamental component of computer chips that process information.
Theoretical Limit Of Photovoltaic Cell Productivity Likely Broken
http://regenelectronics.com/theoretical-limit-of-photovoltaic-cell-productivity-likely-broken/
Theoretical Limit Of Photovoltaic Cell Productivity Likely Broken
A basic individual nanowire crystal is able of ultra – focusing the power of sun rays that is maximized to up to a factor of fifteen, scientists from the Niels Bohr Institute have established. The unexpected breakthrough implies that the believed limitation to solar module efficiency can probably be enhanced.
The breakthrough might result into new types of high-effective solar units, but in addition will have benefits in possible quantum computing devices and other gadgets, the scientists declare.
The scientists engaged in this development had been committing the past few years creating them and focusing to increase their quality.
Throughout the investigation, it was identified that the nanowires normally focus the sun’s radiation into a very compact spot in the crystal by up to a factor fifteen. Due to the fact that the size of a nanowire crystal is more compact than the wavelength of the sun light emerging from the sun it may trigger resonances in the strength of light in and in the vicinity of nanowires. Therefore, the resonances might offer a focused sun energy, where the power is transformed, that will be used to produce a greater transformation accuracy of the sun’s power.As an outcome of this breakthrough, the theoretical solar modules productivity capabilities will probably have to be improved. Although that might not appear essential, it must have a considerable influence on the progress of forthcoming solar system technologies. It will likely continue to be a few of years before this discovery benefits in the manufacturing of super high-performance nanowire solar systems, based to the scientists.
Novel solar photovoltaic cells achieve record efficiency using nanoscale structures
nature.com
Will carbon nanowires be a better answer for low cost, high efficiency solar…finally?
