Autor: Liliana Decu

Tactical Recon Trainer Pantofi tactici de tip Sneaker-tip Pantofi de pregătire cu coardă Rope-Ready: Crossover Trainer ușor la locul de muncă făcut, în confort!(Tactical Recon Trainer Sneaker-Type Tactical Training Shoes Rope-Ready: Lightweight Cross-Trainer Gets the Job Done, in Comfort!)

Este într-adevăr o bucurie de purtat și am purtat mult,
care a implicat un pic de timp de acțiune și de funcționare în jur de mai multe zile, în timp ce fotografierea mai multe arme de foc tactice Beretta
Primul lucru pe care îl observați despre Recon Trainer este cât de ușor și de perceptiv se simte când îl puneți

5 sept

Cadrele metalice și organice găsite în natură(Metal-organic frameworks found to exist in nature)

Unul dintre cele mai fierbinți materiale noi este o clasă de substanțe solide poroase, cunoscute sub numele de cadre metalice organice sau MOF. Aceste materiale artificiale au fost introduse în anii 1990, iar cercetătorii din întreaga lume lucrează la modalități de utilizare a acestora ca bureți moleculari pentru aplicații cum ar fi stocarea hidrogenului, sechestrarea carbonului sau fotovoltaica. Acum, o descoperire surprinzătoare a oamenilor de știință din Canada și Rusia relevă faptul că MF există, de asemenea, în natură – deși sub formă de minerale rare găsite până acum numai în minele de cărbune din Siberia.

Posted: Aug 05, 2016

Metal-organic frameworks found to exist in nature

(Nanowerk News) One of the hottest new materials is a class of porous solids known as metal-organic frameworks, or MOFs. These man-made materials were introduced in the 1990s, and researchers around the world are working on ways to use them as molecular sponges for applications such as hydrogen storage, carbon sequestration, or photovoltaics. Now, a surprising discovery by scientists in Canada and Russia reveals that MOFs also exist in nature – albeit in the form of rare minerals found so far only in Siberian coal mines.
The finding, published in the journal Science Advances („Minerals with metal-organic framework structures”), „completely changes the normal view of these highly popular materials as solely artificial, ‘designer’ solids,” says senior author Tomislav Friscic, an associate professor of chemistry at McGill University in Montreal. „This raises the possibility that there might be other, more abundant, MOF minerals out there.”
synthetic zhemchuzhnikovite
An aggregate of synthetic zhemchuzhnikovite, prepared by Igor Huskić, McGill University)
The twisting path to the discovery began six years ago, when Friscic came across a mention of the minerals stepanovite and zhemchuzhnikovite in a Canadian mineralogy journal. The crystal structure of the minerals, found in Russia between the 1940s and 1960s, hadn’t been fully determined. But the Russian mineralogists who discovered them had analyzed their chemical composition and the basic parameters of their structures, using a technique known as X-ray powder diffraction. To Friscic, those parameters hinted that the minerals could be structurally similar to a type of man-made MOF.
His curiosity piqued, Friscic began looking for samples of the rare minerals, reaching out to experts, museums and vendors in Russia and elsewhere. After a promising lead with a mining museum in Saint Petersburg failed to pan out, Igor Huskic, a graduate student in the Friscic research group at McGill turned his attention to synthesizing analogues of the minerals in the lab – and succeeded. But a major journal last year declined to publish the team’s work, in part because the original description of the minerals had been reported in a somewhat obscure Russian mineralogical journal.
Then, the McGill chemists caught a break: with the help of a crystallographer colleague in Venezuela, they connected with two prominent Russian mineralogists: Sergey Krivovichev, a professor at Saint Petersburg State University, and Prof. Igor Pekov of Lomonosov Moscow State University.
Krivovichev and Pekov were able to obtain the original samples of the two rare minerals, which had been found decades earlier in a coal mine deep beneath the Siberian permafrost. The Russian experts were also able to determine the crystal structures of the minerals. These findings confirmed the McGill researchers’ initial results from their lab synthesis.
zhemchuzhnikovite mineral
Fragment of the crystal structure of the natural zhemchuzhnikovite mineral.
Stepanovite and zhemchuzhnikovite have the elaborate, honeycomb-like structure of MOFs, characterized at the molecular level by large voids. The two minerals aren’t, however, representative of the hottest varieties of MOFs – those that are being developed for use in hydrogen-fueled cars or to capture waste carbon dioxide.
As a result, Friscic and his collaborators are now broadening their research to determine if other, more abundant minerals have porous structures that could make them suitable for uses such as hydrogen storage or even drug delivery.
In any event, the discovery of MOF structures in the two rare minerals already is „paradigm-changing” Friscic says. If scientists had been able to determine those structures in the 1960s, he notes, the development of MOF materials „might have been accelerated by 30 years.”
Source: McGill University

Read more: Metal-organic frameworks found to exist in nature

„A doua piele” protejează soldații de agenți biologici și chimici(‘Second skin’ protects soldiers from biological and chemical agents)

În munca care are ca scop protejarea soldaților de amenințările biologice și chimice, o echipă de cercetători ai Lawrence Livermore National Laboratory a creat un material care este foarte respirabil, dar protector de agenți biologici

15 sept

Metoda de întărire a nanotuburilor de carbon ar putea face ramele avionului mai ușoare, mai rezistente la deteriorări(Method to reinforce carbon nanotubes could make airplane frames lighter, more damage-resistant)

Inginerii aerospațiali MIT au găsit o modalitate de a lega straturile compozite, producând un material care este substanțial mai puternic și mai rezistent la deteriorare decât alte compozite avansate

14 sept

A doua piele protejează soldații de agenții biologici și chimici(Second skin protects soldiers from biological and chemical agents)

Acest material este prima componentă cheie a uniformelor futuriste inteligente, care vor răspunde și vor proteja împotriva pericolelor chimice de mediu

13 sept

Descoperirea straturilor de siliciu pentru noile electronice

Materialul este silicena, cea mai subțire formă posibilă de siliciu, compusă dintr-un strat bidimensional de cristale de siliciu.
Electronii se deplasează ultra-rapid în siliciu, reducând energia necesară pentru acționarea dispozitivelor electronice și deschizând calea pentru electronice și mai mici, flexibile, transparente și cu consum redus de energie.

Posted: Aug 01, 2016

Peeling off the silicene layers for new electronics

(Nanowerk News) Much like an overcooked dinner, the next so-called wonder material for next-generation electronics has been ‘stuck to the pan’ until researchers at the UOW’s Institute for Superconducting and Electronic Materials (ISEM) came up with a breakthrough solution.
The material is silicene, the thinnest possible form of silicon, comprised of a two-dimensional layer of silicon crystals.
Electrons move ultrafast in silicene, reducing the energy required to drive electronic devices and paving the way for even smaller, flexible, transparent and low-energy-cost electronics.
Until now, silicene has been ‘grown’ on a metal surface, but researchers had no proven way of freeing it from the substrate to create a freestanding material that could then be incorporated into electronic devices and components.
ISEM Research Fellow Dr Yi Du and his team have used oxygen to separate a single-atom thick layer of silicon from its surface, overcoming the key hurdle preventing the production of a material with potential to supercharge electronics.
“We know silicene crystals prefer to firmly attach on the metallic substrate and because they are too thin to be peeled off by any mechanical tools, it’s impossible to remove them from the substrate,” Dr Du said.
Researchers have experimented with the idea of using ‘chemical scissors’ to break the bond between silicene and the substrate and the breakthrough for Dr Du and his team came through using oxygen molecules as chemical scissors to cut the silicene from its substrate.
The work, supported by the Australian Research Council (ARC), involves several special techniques that can be done only at ISEM with the help of its powerful tools, including a scanning tunneling microscope, which creates an ultra-high vacuum environment about a hundred times higher than the vacuum level experienced in orbit at the International Space Station.
“Because the vacuum levels are so high, we can inject the oxygen molecules into the chamber and they become a ‘molecular flux’ that follows a straight pathway,” Dr Du said.
“This allows us to direct these molecules precisely into the silicene layers, acting like scissors to separate the silicene.”
njecting oxygen molecules precisely into the silicene layers creates 'scissors' that separate the silicene from the metal surface
Injecting oxygen molecules precisely into the silicene layers creates ‘scissors’ that separate the silicene from the metal surface.
The result is a layer of freestanding silicene – with an appearance much like a honeycomb lattice – that could be transferred to an insulating substrate to make advanced transistors.
The theory for two-dimensional silicene was introduced in 1994 but it wasn’t until 2012 that scientists, including a team at UOW, successfully fabricated silicene in the lab.
Silicene is emerging player in the super-materials category, alongside graphene, which is a single-atom thick layer of carbon.
Graphene has been shown to be the fastest conductor of electricity yet found, faster than commonly used silicon. Graphene can’t be switched between on and off states of conductivity.
This makes it unsuitable for applications such as transistors. Because silicon and carbon sit side-by-side on the periodic table, scientists were inspired to investigate if silicon’s atomic properties could be similarly revolutionary but more easily exploited because of its compatibility with existing silicon-based electronics.
“This work solves the long-lasting problem of isolating this super material for further device development. It challenges the entire scientific literature on silicene since its discovery,” Dr Du said.
“These findings are relevant for the future design and application of silicene-based nano-electronic and spintronic devices.”
The research was published recently in the journal Science Advances („Quasi-freestanding epitaxial silicene on Ag(111) by oxygen intercalation”) and ACS Central Science („Observation of van Hove Singularities in Twisted Silicene Multilayers”) and is the result of collaboration between Australian and Chinese researchers including Professor Jijun Zhao, from the Dalian University of Technology and Dr Jiaou Wang at the Beijing Synchrotron Radiation Facility (Chinese Academy of Sciences).
Source: University of Wollongong

Read more: Peeling off the silicene layers for new electronics

Suprafața de schimbare îmbunătățește marginile nanofibrelor de grafen

Multe studii au prezis proprietățile nanofibrelor de grafen cu marginile zigzag”, a declarat Guangyu Zhang, autor principal al studiului. „Dar în experimente este foarte greu să faci acest material.”
Anterior, cercetatorii au incercat sa faca nanofibri de grafen prin plasarea foilor de grafen intr-un strat de silice si folosind hidrogenul atomic pentru a etchiza benzi cu marginile zig-zag, un proces cunoscut sub numele de gravura anizotropica. Aceste margini sunt esențiale pentru a modula proprietățile nanoribbonului.
Dar această metodă a funcționat doar bine pentru a face panglici care aveau două sau mai multe straturi de grafen. Neregulile din silicele create de vârfurile și văile electronice scrâșnesc suprafața sa, astfel încât să se creeze margini precise de zigzag pe monostraturile de grafen, a fost o provocar

Posted: Aug 01, 2016

Swapping substrates improves edges of graphene nanoribbons

(Nanowerk News) It is now feasible to make a prized material for spintronic devices and semiconductors – monolayer graphene nanoribbons with zigzag edges.
Miniscule ribbons of graphene are highly sought-after building blocks for semiconductor devices because of their predicted electronic properties. But making these nanostructures has remained a challenge. Now, a team of researchers from China and Japan have devised a new method to make the structures in the lab. Their findings appear in the current issue of Applied Physics Letters („Patterning monolayer graphene with zigzag edges on hexagonal boron nitride by anisotropic etching”).
etched Graphene
Graphene etched with an underlying silica substrate produces uneven edges (left) but forms precise edges when placed on boron nitride (right). (Image: Guangyu Zhang)
„Many studies have predicted the properties of graphene nanoribbons with zigzag edges,” said Guangyu Zhang, senior author on the study. „But in experiments it’s very hard to actually make this material.”
Previously, researchers have tried to make graphene nanoribbons by placing sheets of graphene over a layer of silica and using atomic hydrogen to etch strips with zigzag edges, a process known as anisotropic etching. These edges are crucial to modulate the nanoribbon’s properties.
But this method only worked well to make ribbons that had two or more graphene layers. Irregularities in silica created by electronic peaks and valleys roughen its surface, so creating precise zigzag edges on graphene monolayers was a challenge. Zhang and his colleagues from the Chinese Academy of Sciences, Beijing Key Laboratory for Nanomaterials and Nanodevices, and the Collaborative Innovation Center of Quantum Matter teamed up with Japanese collaborators from the National Institute for Materials Science to solve the problem.
They replaced the underlying silica with boron nitride, a crystalline material that’s chemically sluggish and has a smooth surface devoid of electronic bumps and pits. By using this substrate and the anisotropic etching technique, the group successfully made graphene nanoribbons that were only one-layer thick, and had well-defined zigzag edges.
„This is the first time we have ever seen that graphene on a boron nitride surface can be fabricated in such a controllable way,” Zhang explained.
The zigzag-edged nanoribbons showed high electron mobility in the range of 2000 cm2/Vs even at widths of less than 10nm – the highest value ever reported for these structures – and created clean, narrow energy band gaps, which makes them promising materials for spintronic and nano-electronic devices.
„When you decrease the width of the nanoribbons, the mobility decreases drastically because of edge defects,” said Zhang. „Using standard lithography fabrication techniques, studies have seen mobility of 100 cm2/Vs or even lower, but our material still exceeds 2000 cm2/Vs even at the sub-10 nanometer scale, demonstrating that these nanoribbons are of very high quality.”
In future studies, extending this method to other kinds of substrates could enable the quick large scale processing of monolayers of graphene to make high-quality nanoribbons with zigzag edges.
Source: American Institute of Physics

Read more: Swapping substrates improves edges of graphene nanoribbons

Noul dispozitiv cu temperatură ridicată captează un spectru mai larg de lungimi de undă solare

Absorbția solară în bandă largă a fost realizată anterior utilizând rezonatoare metal-izolator-metal (sau MIM), care constau dintr-un izolator sandwich între un fund gros și un strat superior subțire, fiecare realizat din metale precum cromul și aurul. Componentele metalice utilizate în rezonanții MIM au puncte de topire relativ scăzute – temperaturi care sunt reduse în continuare atunci când materialele sunt în straturi foarte subțiri, ca în rezonatoare, datorită unui fenomen numit depresie la punctul de topire, în care punctul de topire al unui material Scade în jos ca dimensiunile de scădere a materialului. Metalele din rezonanții standard MIM se topesc la aproximativ 500 de grade Celsius, împiedicând utilizarea lor în celulele solare.
Sunt rezistente la căldură, inclusiv șoc termic, și prezintă proprietăți fizice și chimice stabile la temperaturi ridiccate

Posted: Aug 01, 2016

New high-temperature device captures a broader solar wavelength spectrum

(Nanowerk News) The photovoltaic (PV) cells in traditional solar cells convert sunlight efficiently within a narrow range of wavelengths determined by the material used in the PV cells. This limits their efficiency, as long wavelengths of sunlight are not converted at all and the energy of short wavelength light is largely wasted. Scientists have sought to increase the efficiency of photovoltaics by creating „multi-junction” solar cells, made from several different semiconductor materials that absorb at varying wavelengths of light. The problem is, such multi-junction cells are expensive to make.
Broadband solar absorption previously has been achieved using metal-insulator-metal (or MIM) resonators, which consist of an insulator sandwiched between a thick bottom and a thin top layer, each made of metals like chromium and gold. The metal components used in MIM resonators have relatively low melting points–temperatures that are reduced further when the materials are in very thin layers, as in the resonators, because of a phenomenon called melting point depression, in which the melting point of a material scales down as the dimensions of the material decrease. The metals in standard MIM resonators melt at around 500 degrees Celsius, hindering their usefulness in solar cells.
Energy Flow of Standard and Solar Thermophotovoltaic (STPV) Systems
The schematic energy flow of standard and solar thermophotovoltaic (STPV) systems. In standard solar cells, a PV cell is directly illuminated by the sun. Whereas in STPV systems (b), an absorber placed between the sun and PV cell is heated by absorbing the broad solar spectrum. A thermal emitter connected to the absorber converts the heat into narrowband thermal radiation that illuminates the PV cell. The inset represents the schematic of the multilayer broadband absorber device. (Image: Manohar Chirumamilla)
Now a group of researchers in Denmark have discovered an alternative method to capture a broad spectrum of sunlight using a heat-resistant device made of tungsten and alumina layers that can be fabricated using inexpensive and widely available film-deposition techniques. The researchers describe their work and the new material in a paper published this week in the journal Optical Materials Express („Multilayer tungsten-alumina-based broadband light absorbers for high-temperature applications”).
„They are resistant to heat, including thermal shock, and exhibit stable physical and chemical properties at high temperatures,” explained Manohar Chirumamilla of Aalborg University in Denmark, the first author of the new paper. This allows the absorbers to maintain their structural properties at very high temperatures.
In experiments, the new absorbers were shown to operate at a temperature of 800 degrees Celsius and to absorb light of wavelengths ranging from 300 to 1750 nanometers, that is, from ultraviolet (UV) to near-infrared wavelengths.
„MIM resonators absorbing in the spectral region from UV to near-infrared can be directly employed in different applications, such as solar TPV [thermophotovoltaic] /TPV systems and solar thermal systems,” Chirumamilla said. „Other potential applications include in so-called tower power plants, where concentrated solar light generates steam to drive a generator.”
„This is the first step in utilizing the energy of the sun in a more efficient way than with current solar cells,” he added. „Using an emitter in contact with our absorber, the generated heat can then be used to illuminate a solar cell–which can then function more efficiently when it is placed directly in the sun.”
Source: The Optical Society

Read more: New high-temperature device captures a broader solar wavelength spectrum

Introducerea celei mai mari fabrici de producere a nanomaterialelor din lume

 Am avut deja mult interes din partea companiilor dintr-o gamă diversă de sectoare. De la asistența medicală, unde nanoparticulele pot fi utilizate în acoperiri pe dispozitive medicale, la țesături îmbunătățite, unde nanomaterialele pot adăuga rezistență și flexibilitate la textile și în electronică tipărită, deoarece putem imprima materiale precum cuprul

Posted: Aug 01, 2016

Introducing the world’s biggest nanomaterial production plant

(Nanowerk News) The European SHYMAN project aims to establish continuous hydrothermal synthesis as the most flexible and sustainable process to create nanomaterials at industrial scale. After demonstrating this potential in the lab, the project has now announced the opening of its first facility in Nottingham.
text
‘This new facility opens up a significant amount of new opportunities for us,’ says Professor Ed Lester, Technical Coordinator of Promethean Particles. This spin-out of the University of Nottingham is in charge of operating the new plant, which is expected to produce over 1 000 tonnes of nanomaterials every year. The production cost is lower than that of other facilities and the chosen production method – continuous hydrothermal synthesis – is expected to impact even markets for which sale prices had so far been an obstacle.
‘We have already had a lot of interest from companies in a diverse range of sectors. From healthcare, where nano-particles can be used in coatings on medical devices, to enhanced fabrics, where nano-materials can add strength and flexibility to textiles, and in printed electronics, as we are able to print materials such as copper,’ Prof. Lester continues. Solvay, Fiat, PPG and Repsol are among the major companies already set to benefit from the plant’s products.
To reach these impressive levels of production, the plant notably relies on high pressure triplex plunger pumps manufactured by Cat Pumps. These pumps have helped the 18-strong consortium to overcome engineering issues related to the mixing of the heated fluid and the aqueous metal salt flow, by creating the continuous pressure and fluid flow necessary to achieve continuous production.
Another enabling technology is the Nozzle Reactor, a customised design that uses buoyancy-induced eddies to produce an ‘ideal’ mixing scenario in a pipe-in-pip concentric configuration in which the internal pipe has an open-ended nozzle. This technology allows Promethean Particles to dramatically improve reproducibility and reliability whilst controlling particles properties such as size, composition and shape.
Betting on hydrothermal synthesis
Started in 2012, SHYMAN built upon the observation that hydrothermal synthesis had numerous advantages compared to alternatives: it doesn’t resort to noxious chemicals, uses relatively simple chemistry relying on cheap precursors, allows straightforward downstream processing, can avoid agglomeration and allows for narrow and well-controlled size and shape distribution.
The optimisation of hydrothermal synthesis has been a key objective of the University of Nottingham for the past 14 years, and SHYMAN is the pinnacle: the project began with the development of bench scale reactors, followed by a 30-times-larger pilot scale reactor. The reactor at the heart of the new production plant is 80 times larger than the latter and features four Cat Pumps Model 3801 high pressure triplex plunger pumps.
‘These are very exciting times for Promethean Particles,’ said Dr Susan Huxtable, Director of Intellectual Property and Commercialisation at the University of Nottingham. ‘The new facility opens up a myriad of opportunities for them to sell their services into new markets right across the world. It is a great example of how many of the technologies developed by academics here at the University of Nottingham have the potential to benefit both industry and society.’
Source: Cordis

Read more: Introducing the world’s biggest nanomaterial production plant

Metoda nouă pentru realizarea LED-urilor verzi le îmbunătățește eficiența și luminozitatea

au creat cristale cubice de nitrură de galiu (GaN) cultivate pe un substrat de siliciu care sunt capabile să producă lumină verde puternică pentru lumina solidă avansată (Aplicată Physics Letters, „Maximizing Phiber Cubic Nitridium Gallium Acoperirea suprafeței pe siliciu cu nano-model (100) „).
Această lucrare este foarte revoluționară, deoarece deschide calea pentru noii emițători de lungime de undă verde care pot viza iluminatul solid solid avansat pe o platformă scalabilă CMOS-silicon prin exploatarea noului material, nitrida de galiu cubică „, a spus Can Bayram, profesor asistent de electricitate Și ingineria calculatoarelor din Illinois, care a început să investigheze acest material în timp ce la IBM TJ Watson Research Center acum câțiva ani.

Posted: Jul 29, 2016

New method for making green LEDs enhances their efficiency and brightness

(Nanowerk News) Researchers at the University of Illinois at Urbana Champaign have developed a new method for making brighter and more efficient green light-emitting diodes (LEDs). Using an industry-standard semiconductor growth technique, they have created gallium nitride (GaN) cubic crystals grown on a silicon substrate that are capable of producing powerful green light for advanced solid-state lighting (Applied Physics Letters, „”Maximizing Cubic Phase Gallium Nitride Surface Coverage on Nano-patterned Silicon (100)”).
Bayram LED
A new method of cubic phase synthesis: Hexagonal-to-cubic phase transformation. The scale bars represent 100 nm in all images. (a) Cross sectional and (b) Top-view SEM images of cubic GaN grown on U-grooved Si(100). (c) Cross sectional and (d) Top-view EBSD images of cubic GaN grown on U-grooved Si(100), showing cubic GaN in blue, and hexagonal GaN in red. (Image: University of Illinois)
„This work is very revolutionary as it paves the way for novel green wavelength emitters that can target advanced solid-state lighting on a scalable CMOS-silicon platform by exploiting the new material, cubic gallium nitride,” said Can Bayram, an assistant professor of electrical and computer engineering at Illinois who first began investigating this material while at IBM T.J. Watson Research Center several years ago.
„The union of solid-state lighting with sensing (e.g. detection) and networking (e.g. communication) to enable smart (i.e. responsive and adaptive) visible lighting, is further poised to revolutionize how we utilize light. And CMOS-compatible LEDs can facilitate fast, efficient, low-power, and multi-functional technology solutions with less of a footprint and at an ever more affordable device price point for these applications.”
Typically, GaN forms in one of two crystal structures: hexagonal or cubic. Hexagonal GaN is thermodynamically stable and is by far the more conventional form of the semiconductor. However, hexagonal GaN is prone to a phenomenon known as polarization, where an internal electric field separates the negatively charged electrons and positively charged holes, preventing them from combining, which, in turn, diminishes the light output efficiency.
Until now, the only way researchers were able to make cubic GaN was to use molecular beam epitaxy, a very expensive and slow crystal growth method when compared to the widely used metal-organic chemical vapor deposition (MOCVD) method that Bayram used.
Bayram and his graduate student Richard Liu made the cubic GaN by using lithography and isotropic etching to create a U-shaped groove on Si (100). This non-conducting layer essentially served as a boundary that shapes the hexagonal material into cubic form.
„Our cubic GaN does not have an internal electric field that separates the charge carriers–the holes and electrons,” explained Liu. „So, they can overlap and when that happens, the electrons and holes combine faster to produce light.”
Ultimately, Bayram and Liu believe their cubic GaN method may lead to LEDs free from the „droop” phenomenon that has plagued the LED industry for years. For green, blue, or ultra-violet LEDs, their light-emission efficiency declines as more current is injected, which is characterized as „droop.”
„Our work suggests polarization plays an important role in the droop, pushing the electrons and holes away from each other, particularly under low-injection current densities,” said Liu, who was the first author of the paper.
Having better performing green LEDs will open up new avenues for LEDs in general solid-state lighting. For example, these LEDs will provide energy savings by generating white light through a color mixing approach. Other advanced applications include ultra-parallel LED connectivity through phosphor-free green LEDs, underwater communications, and biotechnology such as optogenetics and migraine treatment.
Enhanced green LEDs aren’t the only application for Bayram’s cubic GaN, which could someday replace silicon to make power electronic devices found in laptop power adapters and electronic substations, and it could replace mercury lamps to make ultra-violet LEDs that disinfect water.
Source: University of Illinois College of Engineering

Read more: New method for making green LEDs enhances their efficiency and brightness