Sentences with phrase «cadmium telluride cdte»

Harvey, who has an impressive command of technical data, worries that toxic cadmium telluride used in the thin - film panels will escape into the environment, and he isn't soothed by Chevron's assurances that it will spray polymer - based binders on the disturbed soil to keep it from blowing around.

Like all semiconductor photovoltaic devices, cadmium telluride (CdTe) modules have a characteristic response to temperature changes.

The solar cells are made of uniform 500 - nanometer - high pillars of cadmium sulfide embedded in a thin film of cadmium telluride.

The researchers investigated 4 types of solar cells: multi-crystalline silicon (with an efficiency of 13 %), mono - crystalline silicon (14 %), ribbon silicon (11.5 %), and thin - film cadmium telluride (9 %).

According to the university, the cheapest solar cells today are based on a thin film of insoluble cadmium telluride.

The solar cells — made often of silicon or cadmium telluride — rarely cost more than 20 percent of the total cost.

GE already has big plans in cadmium telluride (CdTe) in its Primestar program, 400 - megawatt Colorado factory and a technology roughly the same as First Solar's.

Solar Frontier's monolithic thin - film modules are spec'd at approximately 12.2 percent efficiency, which is a relatively strong number in the thin film world, a bit better than First Solar's 11.7 - percent - efficient cadmium telluride material, but still trailing the 14 percent to 22 percent module efficiency of the crystalline silicon vendors.

Today the manufacturer appears to produce its cadmium telluride modules predominantly for its own projects in the multi-megawatt segment in the USA and Asia.

For instance, cadmium telluride thin film panels could help solar reach grid parity sooner than silicon panels could, but tellurium — a key ingredient — is fairly rare.

If production of cadmium telluride solar panels increases substantially, it could trigger a scarcity of tellurium, raising the price for that type of panel.

Thin - film silicon technologies from turn - key vendors will be ramping up in large scale during the second half of 2008, while cadmium telluride (CdTe) module producers such as First Solar

A researcher analyzes a cadmium telluride thin - film solar cell at General Electric's Global Research Center in Niskayuna, New York.

What may really help to lower the cost of solar are new materials — especially semiconductors made from the compound cadmium telluride.

It's cheaper to make «thin - film solar cells» with cadmium telluride than with silicon.

Thanks to the rising cost of coal and natural gas — as well as the short - term cost benefits of cadmium telluride, and falling costs of silicon and other solar options — the National Renewable Energy Laboratory estimates that solar energy could reach nationwide grid parity by 2017.

If the solar industry has become dependent on the short - term low - cost cadmium telluride option, long - term scarcity could end up moving solar electricity back out of grid parity for many people.

First Solar, Inc. of Tempe, Arizona USA, a maker of cadmium telluride CdTe - based thin - film solar cells, reported that the company will begin developing and building a 200 - megawatt (MW) ac photovoltaic (PV) solar power plant in Twiggs County, Georgia USA.

Indiana energy holding company Vectren Energy Delivery (Vectren), has selected First Solar, Inc. to construct the 50 - megawatt (MW) cadmium telluride (CdTe) thin - film solar array sketched out last month as part of Vectren's long - term plan for electric generation.

Early last year, «Rumor: First Solar Looks to Experiment With CIGS» by Michael Kanellos for Greentech Media speculated CdTe (cadmium telluride) expert First Solar was investigating the CIGS (copper indium gallium diselenide) material set for potential PV commercialization.

At SkyPower, we will not use panels manufactured with toxic or rare materials, including cadmium telluride.

Researchers improved the maximum voltage available from a cadmium telluride (CdTe) solar cell, overcoming a practical limit that has been pursued for six decades and is key to improving efficiency.

While researchers have improved silicon - based cells almost to their theoretical limit, there is significant room for efficiency improvements for cadmium telluride, which could be bettered by an additional 30 percent, said Lynn.

First Solar's solar cells — the U.S. best seller — produce electricity when sunlight strikes a thin film of cadmium telluride sandwiched between glass.

Already, such issues have driven major companies such as General Electric to opt for competing technologies, investing in thin - film solar cells made from cadmium telluride by PrimeStar.

The least expensive solar cells today are made using thin films of cadmium telluride.

Making solar cells from cadmium telluride «is a much more robust and forgiving process and material structure.»

He is researching ways to meet this goal through the use of materials including amorphous silicon (a-Si), copper indium diselenide (CIS) and cadmium telluride (CdTe) to exploit silicon's efficiency and keep down costs.

Kotov and his colleagues shined circularly polarized light on particles of cadmium telluride in a solution.

A twisted ribbon of cadmium telluride nanoparticles.

The team has shown that its nickel oxide film is compatible with many different kinds of semiconductor materials, including silicon, indium phosphide, and cadmium telluride.

For example, Tempe, Ariz. — based First Solar, Inc., which employs cadmium telluride in its thin - film solar cells, sells its modules encased in glass for either large arrays or rooftops.

In fact, cadmium telluride solar cells are currently the most ecofriendly devices, even though they use a toxic heavy metal, primarily because they require the least energy — typically provided by burning fossil fuels — to manufacture, says environmental engineer Vasilis Fthenakis, senior scientist at Brookhaven National Laboratory's National Photovoltaic Environment Research Center in Upton, N.Y., and Columbia University.

Enter thin - film solar cells — devices that use a fine layer of semiconducting material, such as silicon, copper indium gallium selenide or cadmium telluride, to harvest electricity from sunlight at a fraction of the cost.

Yellow represents a quantum dot (cadmium telluride or indium arsenide, respectively).

Yet, cadmium telluride commands only about 30 percent of the thin - film market, according to DoE statistics, compared with amorphous silicon cells (such as those produced by Sharp and ECD Ovonics), which account for more than 60 percent; CIGS cells make up just about 1 percent of this market.

Metals can be repurified and given back to us in the form of the cadmium telluride compound.

In experiments conducted thus far, the ions have been mounted in quantum dots made of cadmium telluride (CdTe) or indium arsenide (InAs).

With this data, they analyzed two solar cell materials: silicon (commonly used in solar cells) and cadmium telluride (thin - film competitor material).

The researchers found that the cadmium telluride solar cells produced up to 5 % more energy than silicon ones in the hot, humid Singaporean location.

Surprisingly, they identified that two types of solar cells (silicon and cadmium telluride) can vary in energy output by 5 % or more in tropical regions, where most of the emerging solar cell markets are located.

«America is quickly falling behind in clean energy, trading Middle Eastern oil for cheap Chinese solar, batteries and wind turbines,» says Chris Rivest, co-founder of Berkeley, Calif. — based SunPrint, which is developing technology to print cadmium telluride thin - film photovoltaic cells.

First Solar, based in Tempe, Arizona, offers to take back and recycle all the cadmium telluride thin - film solar cells it produces.

The 1.2 x 2 meter modules are expected to become commercially available at 420 - 445 watts with efficiencies of over 17 %, which is a testament to the thin film solar maker's remarkable progress with cadmium telluride PV.

It uses cadmium telluride for its thin - film PV panels, so the tariffs, which specifically concern the more popular crystalline silicone solar products, won't affect it.

Not exact matches

While most of its peers make silicon - based panels, First Solar manufactures thin - film panels made with cadmium - telluride, which absorbs more frequencies of light and uses fewer materials.

Cadmium - telluride, however, has an advantage over silicon because it can absorb the same amount of sunlight with 98 percent less semiconducting material, thus reducing the overall cost of the solar panel.

For their outstanding contribution in the field of crystals of cadmium - mercury - telluride (CMT) leading to the application of detectors made from CMT to the successful development of thermal imaging.

Aptamer - quantum dot (APT - QD) bioconjugates were synthesized by conjugating cadmium - telluride quantum dots (QDs, semiconductor nanoparticles) to aptamers (nucleic - acid based ligands), by amide crosslinking.

The company expects to resume full production by year - end with cadmium - telluride panels that will be able to convert 12.5 percent to 13 percent of the energy in sunlight into electricity.