Thousands of times thinner than a human hair, they're highly conductive and feature a large surface area for the storage and transfer of electrons.
Carbon nanotubes, for example, are tens of
thousands of times thinner than a human hair, yet are stronger than steel on an ounce - per - ounce basis.
To make such a detailed model, researchers took specks of brain tissue and cut them into slices
thousands of times thinner than a human hair.
While selenium is not as abundant as silicon or other promising materials for electronics, the thinness of these sheets is a big advantage, Churchill points out: «It's thousands or tens of
thousands of times thinner» than conventional diode materials, «so you'd use thousands of times less material» to make devices of a given size.
The researchers designed the electrodes at the nanoscale —
thousands of times thinner than the thickness of a human hair — to ensure the greatest surface area would be exposed to water, which increases the amount of hydrogen the device can produce and also stores more charge in the supercapacitor.
Not exact matches
The material measures just one atomic layer, which is about one -
thousand times thinner than a single strand
of human hair.
The new electrode grid, developed by a team
of researchers at the University
of California San Diego and Massachusetts General Hospital, is about a
thousand times thinner — 6 micrometers versus several millimeters thick — than clinical electrode grids.
To do so, they took a single layer
of molybdenum diselenide that is
thousand times thinner than a micrometer and sandwiched it between two disks
of boron nitride.
They do not take up much space: Layers with a thickness in the order
of magnitude
of nanometers are enough to detect light — the detector is more than a
thousand times thinner than the wavelength
of the light which is being detected.
They attached titanium oxide crystals a hundred to a
thousand times thinner than a human hair (depending on the hair) to either side
of an instrument that measures force.
The extremely
thin diameter
of 1.5 nanometers (over 60,000
times thinner than a human hair) means that
thousands of the wires can easily be packed into a very small space.
This produces nanowire filaments that are a
thousand times thinner than the diameter
of a human hair, typically about 300 nanometres or less.
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