Sentences with phrase «use nanometre»

The effect, however, turns out to work only in LEDs which use nanometre - thick active regions — quantum wells.

Not exact matches

A map of the Americas measuring just a few hundred nanometres across has been created out of meticulously folded strands of DNA, using a new technique for manipulating molecules dubbed «DNA origami».

Lin's team has now come up with an alternative using quantum dots — light - sensitive, semiconducting particles just a few nanometres in diameter.

The nanoparticles were 30 - nanometre - wide beads of surgical cobalt - chromium alloy, a material used in much larger pieces to make surgical implants such as hip prostheses.

Many bacteria swim using flagella — long tails that are attached to tiny motors made of proteins, just tens of nanometres wide.

«We don't even have to use entire trees; nanocellulose is only 200 nanometres long.

Bacteria use molecular motors just tens of nanometres wide to spin a tail (or «flagellum») that pushes them through their habitat.

The most complex molecular knot ever tied is just 20 nanometres long, and might be used to make innovative new materials

In the current work, Blamire and his collaborators used a multi-layered stack of metal films in which each layer was only a few nanometres thick.

Steele and colleagues used Raman spectroscopy — a technique that scatters laser light off a substance to identify its structure and chemical make - up — to pinpoint the MMC in the rocks with a precision of around 360 nanometres.

After cutting a thin section from one of the carbon globules of the meteorite, they used a jet of argon ions to erode the slice until it was just 50 nanometres thick — a process known as ion milling — and examined it under an electron microscope.

The artificial synaptic TFT consisted of indium zinc oxide (IZO), as both a channel and a gate electrode, separated by a 550 - nanometre - thick film of nanogranular silicon dioxide electrolyte, which was fabricated using a process known as chemical vapour deposition.

Recent advances in optical physics have made it possible to use fluorescent microscopy to study complex structures smaller than 200 nanometres (nm)-- around 500 times smaller than the width of a human hair.

With the methods used, it is now possible to study not only ore particles on the ocean floor in the range of millimetre to nanometre, but also the smallest fossils and living organisms, such as micro-organisms.

A time - of - flight secondary ion mass spectrometer (ToF - SIMS), which provides a very high spatial resolution down to the nanometre range, was used in this particular study.

Drivers will use electrons from the tip of a scanning tunnelling microscope (STM) to help jolt their molecules along, typically by just 0.3 nano - metres each time — making 100 nanometres «a pretty long distance», notes physicist Leonhard Grill of the University of Graz, Austria, who co-leads a US — Austrian team in the race.

Scientists from MIPT have succeeded in growing ultra-thin (2.5 - nanometre) ferroelectric films based on hafnium oxide that could potentially be used to develop non-volatile memory elements called ferroelectric tunnel junctions.

Luiz Da Silva and colleagues from the University of California at Berkeley has already succeeded in using the Livermore laser to observe 50 - nanometre features in the nuclei of dried rat sperm cells (Science, vol 258, p 269).

Using X-ray lasers, scientists hope one day to be able to observe features of 20 nanometres in living cells.

Using highly miniaturised segmented - style Fresnel lenses — the same design used in lighthouses for more than a century — which enable exceptionally high - quality images of a single atom, the scientists have been able to detect position displacements with nanometre precision in three dimensions.

Cree Research, a small company in Durham, North Carolina, uses silicon carbide in LEDs which emit at 470 nanometres in the blue region of the visible spectrum, but each chip generates only a modest 12 millicandelas.

«The light elements that makes up these «molecular tadpoles» are easily located by neutrons» says Dr Isabelle Grillo, at the ILL. «Moreover, small angle neutron scattering which we use at the ILL allows to characterise the self - assembled systems from the nanometre scale to tenth of micrometres and is perfectly adapted to observe the coming together of the C60 footballs» into these beautiful core structures.»

For their atoms, the team used polystyrene microspheres — either 540 or 850 nanometres across, more than 2000 times bigger than real atoms — coated in a substance that binds to DNA.

The bonding properties of the saccharide coating can now be switched using this method: if the researchers irradiate their system with light with a wavelength of 365 nanometres, considerably fewer pathogenic bacteria cells can adhere to the synthetic surface.

These kinds of observations can not be easily made under a microscope, of course, but require instead an indirect, statistical approach: «Using small - angle X-ray scattering at BESSY II, we were not only able to ascertain that the nanoparticles are all around five nanometres in diameter, but also measure what the separations between them are.

By using the most concentrated hydrofluoric acid available, the pores can be made as small as one to two nanometres wide, but many micrometres long.

In each test, the researchers used a blue laser light with a wavelength of 458 nanometres to create photoluminescence.

For their study, the Bern research groups used a new microscope, which allowed them to look into trypanosomes and their mitochondria with a resolution of less than 50 nanometres.

Each tiny ink dot used to print each letter would have to be reduced to the size of just 1000 atoms, he calculated — a square with sides of just 9 nanometres.

Furthermore, the microscope will be capable of performing live - cell super-resolution imaging through structured illumination microscopy (SIM) and Super-Resolution Radial Fluctuations (SRRF); for fixed cells resolutions on the scale of tens of nanometres will be achievable using single molecule localization microscopy (SMLM) techniques.

Eliasson has used various methods in his own exploration of the «photon in art», from working with chemists to create detailed colour spectrums via each nanometre of light, and many other unique processes to boot.

The 970 is designed by Huawei's HiSilicon chip design business and built using the most advanced 10 nanometre production lines of contract manufacturer TSMC.

LG also released its 2017 range of Super UHD LCD TVs (models SJ9500, SJ8500 and SJ8000) featuring a new Nano Cell technology that uses uniformly - sized particles — «dots» approximately one nanometre in diameter to create more subtle, accurate colours that can be viewed from wider angles than most other TVs.

The new bitcoin mining chip announced by BitFury uses a 16 - nanometre node at scale.