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Cadmium Telluride (CdTe) |
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Cadmium telluride is commercially available as a powder, or as crystals.
It can be made into nanocrystals.
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Cadmium Telluride Sputtering Target(CdTe target) Purity--- 99.99%,99.999%, 99.9995% Shape---Disks, Sheets,Plate,custom-made Size ---Discs: Dia(≤360mm),Thickness(≥0.5mm) Rectangle: Length(≤250mm),Width(≤250mm),Thickness(≥1mm) Rods: Dia(≤250mm),Length(≤250mm) Pellets: Dia(≤250mm),Thickness(≥1mm) Application --- Primary used solar cells... CdTe target. |
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Cadmium Telluride Granuale (CdTe evaporation material) Purity --- 99.99%,99.999%, 99.9995% Shape --- granuale(1-12mm) Application --- Primary used solar cells... |
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Cadmium Telluride (CdTe) Powders Purity --- 99.99%,99.999%, 99.9995% Shape --- Powder, 200-300 mesh, custom-made Application --- Primary used solar cells... |
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Toxicity Cadmium telluride is toxic. It should not be ingested, nor its dust inhaled, and it should not be handled without appropriate gloves and other safety precautions. Please refer to materials safety data sheets for details. The toxicity is not solely due to the cadmium content. One study found that the highly reactive surface of cadmium telluride quantum dots triggers extensive reactive oxygen damage to the cell membrane, mitochondria, and cell nucleus. In addition, the cadmium telluride devices are typically dipped in a toxic compound of cadmium sulfide. The disposal life-cycle and long term safety of cadmium telleride is becoming more of a known issue in the large scale commercialization of cadmium telluride solar panels. A document hosted by the U.S. National Institutes of Health dated 2003 discloses that |
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Other Materials and Product available for these Solar Cell Coating TCO - Cd2SnO4, SnO2/Sb2O3, ZnO/Al2O3, ZnO/Al, ZnO/Ga2O3, Zn/MgO Contact Materials - Ag, Ag alloys, Al, Ni/V, Ni, Ti, Cu |
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Relation Materials and Product Cadmium Sulfide (CdS) sputtering target Cadmium Selenide (CdSe) Sputtering target Cadmium Telluride (CdTe) sputtering target Copper Indium Gallium DiSelenide (CIGS)
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Cadmium
telluride (CdTe) is an excellent semiconductor for solar cells because
its bandgap of 1.4 electron-volts is matched nearly perfectly to the
solar spectrum. The device structure also includes a very thin layer
of cadmium sulfide that allows most sunlight to pass through to the CdTe
layer. These characteristics provide the potential for high-efficiency
modules with low-cost manufacturing processes. CdTe is transparent from
close to its band gap energy out to infrared wavelengths greater than
20 μm. The refractive index is 2.649 at 10μm. CdTe has very low solubility
in water. It is etched by many acids including hydrochloric, and hydrobromic
acid, forming (toxic) hydrogen telluride gas. 
CdTe is a useful material
for solar cells (photovoltaics). CdTe can be alloyed with mercury to
make a versatile infrared
detector material (HgCdTe). CdTe alloyed with a small amount of zinc
makes an excellent solid-state x-ray and
gamma ray detector (CdZnTe).
CdTe is used as an infrared optical
material for optical
windows and lenses.
CdTe is also applied for electrooptical modulators. It has highest electrooptical coefficient of the linear electrooptic effect among II-VI compound crystals (r41=r52=r63=6.8*10-12 m/V).
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