Trapping sunlight with silicon nanowires
Generating Electricity from SunlightAt the heart of all solar cells are two separate layers of material, one with an abundance of electrons that functions as a negative pole, and one with an abundance of electron holes (positively-charged energy spaces) that functions as a positive pole. When photons from the sun are absorbed, their energy is used to create electron-hole pairs, which are then separated at the interface between the two layers and collected as electricity.Because of its superior photo-electronic properties, silicon remains the photovoltaic semiconductor of choice but rising demand has inflated the price of the raw material. Furthermore, because of the high-level of crystal purification required, even the fabrication of the simplest silicon-based solar cell is a complex, energy-intensive and costly process.Yang and his group are able to reduce both the quantity and the quality requirements for silicon by using vertical arrays of nanostructured radial p-n junctions rather than conventional planar
Trapping sunlight with silicon nanowires
Fri 5 Mar 10 from Nanotechweb
Trapping Sunlight with Silicon Nanowires, Wed 3 Mar 10 from PhysOrg
Trapping sunlight with silicon nanowires, Thu 4 Mar 10 from Eurekalert
Trapping sunlight with silicon nanowires, Thu 4 Mar 10 from ScienceDaily
Trapping sunlight with silicon nanowires, Thu 4 Mar 10 from e! Science News
Trapping sunlight with silicon nanowires, Thu 4 Mar 10 from R&D Mag
Featured - Trapping sunlight with silicon nanowires
Solar cells made from silicon are projected to be a prominent factor in future renewable green energy equations, but so far the promise has far exceeded the reality. While there are now silicon ...
Fri 5 Mar 10 from Labspaces.net
Silicon Suncatchers Create Electricity, Thu 4 Mar 10 from Laboratory Equipment
Silicon nanowires trap sunlight, Fri 5 Mar 10 from R&D Mag
Silicon Nanowires Could Be Used To Trap Sunlight
Generating Electricity from SunlightAt the heart of all solar cells are two separate layers of material, one with an abundance of electrons that functions as a negative pole, and one with an ...
Thu 4 Mar 10 from RedOrbit
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