black silicon


Also found in: Dictionary, Thesaurus, Medical.

black silicon

Silicon that is heavily doped with sulfur in order to make it more sensitive to infrared (IR) radiation. Used for IR detectors, black silicon is more efficient at absorbing photons and releasing electrons. It is created by bombarding silicon wafer surfaces with short-pulse femtosecond lasers while exposed to sulfur hexaflouride and other dopants. See silicon.
Mentioned in ?
References in periodicals archive ?
Black silicon technology can eliminate the plasma-enhanced chemical vapour deposition (PECVD) of silicon nitride currently in solar cell production lines.
Black silicon, which engineers typically use in solar panels and light sensors, is so cheap and easy to manipulate that creating the nanostructured surface takes just five minutes, Ivanova says.
Other topics include gear fault detection based on fabrication material, composite materials for pressure vessels, laser textured black silicon solar cells, and the effect of glass microballoon size on the compressive strength of syntactic foams.
The contract has been signed to develop and commercialise a line of black silicon products, including equipment, chemicals, and solar cells, based on NREL patents.
On a lighter note, the delicate line drawing of a humble hut, a fragment from a Ming landscape by Chen Jiru, is replicated in An Old Breeze--Grass Roof 1, 2008; taken from the dreamy scene of foggy mountains, the sfumato-like effect of its thin ink and simple yet masterly brushstrokes is comically mocked with uneven blotches made of tiny black silicon grains set on a painted canvas.
scientists have invented the Black Silicon Nanocatalytic Wet-Chemical Etch, a process that turns silicon wafers black so they absorb 98% of solar radiation.
With the completion of this milestone and resulting performance breakthroughs, SiOnyx is now leading newly sponsored programs with the US Army's NVESD and DARPA that will advance the use of Black Silicon in low light and infrared imaging.
One ongoing project is investigating black silicon as a material for infrared sensor technology.
Under floor heating would ideally connect to a district heating system powered by a bio-mass boiler and it would feature the latest generation black silicon photovoltaic panels to harness renewable energy.