Sentences with word «polycrystalline»

China responded with its own 57 percent duties against U.S. producers of polycrystalline silicon, the raw material for photovoltaic cells.

The PV system includes Sharp 250W polycrystalline panels with a SolarEdge inverter and power optimisers on each panel to increase output and offer full monitoring of the overall systems.

This somewhat surprising discovery enriches our fundamental knowledge of the atomic - level segregation structures at general grain boundaries, which are important in controlling a broad range of mechanical and physical properties of polycrystalline alloys.

Grain boundaries create strained regions in polycrystalline materials by stabilizing dislocations and may provide a way to create high - energy surfaces for catalysis that are kinetically trapped.

Catalytically growing graphene (a sheet of carbon just one atom thick) and other 2D materials on polycrystalline metal foils by chemical vapour deposition (CVD) is one of the best ways to fabricate continuous sheets of these nanostructures.

However, most grain boundaries in polycrystalline materials are so - called «general» grain boundaries of mixed tilt and twist character, which are not well understood due to the difficulties in characterizing and modeling them.

First, let's clarify that monocrystalline or polycrystalline cells of the type now seen on solar - powered racing cars are not really practical for application to production vehicles subject to the insults of daily driving.

Researchers in the UK, the US and Germany have succeeded in obtaining videos of graphene nucleating and growing on polycrystalline metal surfaces using scanning electron microscopy.

Newpowa 100 Watts 12 Volts Polycrystalline Solar Panel 100W 12V High Efficiency Module Rv Marine Boat Off Grid

The patterns indicate that Fe3O4 has the inverse spinel structure with the same crystal orientation of the MgO substrate, while Fe takes polycrystalline structure.

This discovery shows that segregation - induced ordered superstructures are not limited to special grain boundaries that are inherently periodic, but may exist at a variety of general grain boundaries that were thought to be lacking any long - range order; hence, they can affect the performance of polycrystalline engineering alloys.

To validate whether their findings were unique, the researchers compared the UD - developed nano - porous silver catalyst with other potential carbon dioxide electrocatalysts including polycrystalline silver and other silver nanostructures such as nanoparticles and nanowires.

To model the double process in question, the authors consider quantum mechanical dynamics in a background space consisting of a number of small crystal - like domains varying in size and composition, known as polycrystalline space.

Philadelphia Solar will install its own 320Wp polycrystalline modules and its own single - axis tracker for the project.

This project uses Canadian Solar's MaxPower 1500 - volt polycrystalline CS6U - P modules, which deliver excellent module efficiency and performance in a variety of conditions.

«The losses can be lowered by optimizing the growth method to grow polycrystalline silicon instead of amorphous silicon,» he says.

This finally enables CIGS cells to compete with the best polycrystalline silicon cells.

There, she spent a year looking at polycrystalline layers of diamond, analysing its chemical properties.

This will be using a Low - Temperature Polycrystalline Silicon Thin Film Transistor Technology which will be solving the grainy image issue plaguing current VR display.

The company states that they are using an LTPS (Low - Temperature Polycrystalline Silicon) display technology instead of the IPS LCD technology, which is more conventional among the smartphone makers.

The researchers built their computer models using common molecular models for ice / water and methane, arranged as either monocrystalline or polycrystalline grains, and simulated the effect of applying forces to the collection of grains.

SkyPower's projects will be composed of 47,710 CS6P high efficiency polycrystalline modules and 36,972 CS6P high efficiency monocrystalline respectively.

Researchers believe that these new and somewhat surprising discoveries are scientifically important and enrich our fundamental understanding of the general grain boundaries that often control the performance properties of various polycrystalline engineered materials.

Researchers observed and investigated segregation - induced superstructures at randomly - selected general grain boundaries of a Ni - Bi polycrystalline alloy via aberration - corrected scanning transmission electron microscopy (AC STEM), in conjunction with first - principles density functional theory calculations.

But unlike his previous memristor, which used individual, small flakes of MoS2, Hersam's memtransistor makes use of a continuous film of polycrystalline MoS2 that comprises a large number of smaller flakes.

Mariano et al. studied the electroreduction of CO2 to CO on polycrystalline gold films, a reaction that competes with H2 evolution.

The improved mass diffusion properties of such hierarchical frameworks, together with their robust single - crystalline nature, endow them with superior catalytic activity and recyclability for bulky - molecule reactions, as compared with conventional, polycrystalline hollow, and disordered macroporous ZIF - 8.

In a paper published in the 2 November edition of Nature Communications, corresponding author Zhang and his colleagues describe how they used a computer simulation of two types of methane hydrates, monocrystalline hydrates and polycrystalline hydrates, to see what would happen if they were compressed or if pressures on the hydrates were suddenly released.

«Initially, our research was driven by our desire to study how inhomogeneities in the structure of polycrystalline photovoltaics could affect the conversion of sunlight to electricity and how these devices can be improved,» says Heayoung Yoon, the lead author of the paper.

Since then, such unique properties have been found in various alloy systems such as NiTi -, Cu -, Fe -, Ni -, Co - and Ti - based polycrystalline alloys.

«Since the structures of this material are compatible with silicon technology, we can expect that new non-volatile memory devices with ferroelectric polycrystalline layers of hafnium oxide will be able to be built directly onto silicon in the near future,» says the corresponding author of the study and head of the Laboratory of Functional Materials and Devices for Nanoelectronics, Andrei Zenkevich.

The collaboration found that a bulk metallic glass based on palladium displayed a fatigue strength as good as the best composite bulk metallic glasses and comparable to regular polycrystalline structural alloys, such as steel, aluminum and titanium.

Fabrication of ultralow reflectance polycrystalline silicon wafers by use of the developed technology.

Nickel - gallium thin films of various stoichiometries were found to reduce CO2 to methane, ethane, and ethylene, at overpotentials lower than the best polycrystalline catalyst, copper.

What is remarkable is that by using this technique, graphene with electronic properties approaching those of pristine graphene can be produced — and this over areas as large as several square metres on low - cost polycrystalline supports.

Salleo's group led a multidisciplinary team of researchers in making a systematic study of a likely culprit of the inconsistent transistor performance in polycrystalline devices: the «grain» boundaries between crystals.

Made from discarded polycrystalline solar panel cells, which are thrown out every two years, the artists highlight the practice of «greenwashing» a product's environmental credentials.

The kit includes one 235 - watt polycrystalline panel, a 120 VAC / 60 Hz grid - tie inverter, racking mount, WiFi module for monitoring, and a connector to plug directly into an AC outlet.

According to the National Renewable Energy Laboratory (NREL), which has tracked cell efficiencies since 1975, the current polycrystalline module efficiency record stands at 21.9 percent.

The factory will produce polycrystalline silicon — a principal component used to make solar panels — and is expected to create up to 500 long - term jobs.

Here is a discussion on the advantages and disadvantages of monocrystalline vs polycrystalline solar cells, the most common solar cell technologies used in residential solar installations in the USA.

The 290W 60 - cell Polycrystalline diamond - cut PERC module was designed for the residential solar market, said Logan Fang, a senior market strategist for the company.

That the author is using innacurate information can be easily demonstrated by looking at the economics: a typical 200W polycrystalline panel mounted facing south at about a 30 - degree pitch in, say, Pennsylvania, will produce about 220 kWh per year or about 5,500 kWh over a 25 - year lifespan (most panels are expected to last over 30 years).

The exceptionally high activity, Jiao said, is likely due to the UD - developed electrocatalyst's extremely large and highly curved internal surface, which is approximately 150 times larger and 20 times intrinsically more active than polycrystalline silver.

This resembles the behaviour of polycrystalline metals, such as copper.