Cadmium Telluride

Description

Cadmium Telluride CdTe 5N 6N 7N, is an odorless and black crystalline solid with molecular weight 240.01, melting point is 1041°C and density 6.2g/cm³. Cadmium Telluride is insoluble in water but resolve in nitrate acid, and resulting oxidation in moisture air under long time exposure. Cadmium Telluride is II-VI crystalline compound semiconductor synthesized from high purity cadmium and tellurium. Being high resistivity at room temperature and large linear attenuation coefficient, CdTe become to be considered a prospective material for the room temperature semiconductor detector application such as an infrared optical window and lens, thin film solar cell material, PIN semiconductor structure manufacturing, Infrared imaging, X-ray and gamma ray detection, optical devices, and photovotaic, epitaxial substrate; evaporation source of crystal sheet, electro-optic modulators designing or target materials epitaxial processing and other related fields. Besides, CdTe crystals can be used for spectral analysis and far infrared transmission and can be alloyed with mercury to make a versatile HgCdTe MCT infrared detector material, and alloyed with zinc to make CdZnTe solid x-ray and gamma ray detector.

Delivery

Cadmium Telluride CdTe 5N 6N 7N polycrystalline at Western Minmetals (SC) Corporation with purity of 99.999% 99.9999% and 99.99999% can be delivered in size of powder, lump, chunk, bar and bulk crystal, which is packed in composite aluminum bag filled argon gas protection with carton box outside. Cadmium Telluride CdTe single crystal 6N and 7N purity can be offered in form of bar and blank 5x5x0.5mm, 10x10x0.5mm, and disc with 1.0 inch in diameter x 0.5mm or as customized specification to reach the perfect solution.

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Technical Specification

CdTe

Cadmium Telluride Polycrystalline 5N 6N 7N (CdTe Poly or CdTe Multicrystal 5N 6N 7N) at Western Minmetals (SC) Corporation with purity of 99.999% 99.9999% and 99.99999% can be delivered in size of powder, lump, chunk, bar and bulk crystal, which is packed in composite aluminum bag filled argon gas protection with carton box outside.

Cadmium Telluride Single Crystal 6N 7N (CdTe single crystal or CdTe Monocrystal ) 99.9999% and 99.99999% at Western Minmetals (SC) Corporation can be offered in form of bar and blank 5x5x0.5mm, 10x10x0.5m, and Disc with 1.0 inch in diameter x 0.5mm or as customized specification to reach the perfect solution.

Atomic No.	240.01
Atomic Weight	112.41
Density	5.85g/cm³
Melting Point	1092°C
Boiling Point	1130°C
CAS No.	1306-25-8
H.S Code	2853.0090.90

Commodity	Standard Specification
	Purity		Impurity (ICP-MS or GDMS Test Report, PPM Max each)
Polycrystalline Cadmium Telluride CdTe	5N	99.999%	Ag/Cu/Mg/Ni/Fe/As/Bi 0.5， Al/Pb/Zn1.0	Total ≤10
	6N	99.9999%	Ag/Zn/Al/Mg/Ni/Fe/Bi 0.05, Pb 0.1, Cu/In 0.01	Total ≤1.0
	7N	99.99999%	Ca/Se/Sn/Fe/Pb 0.01, Zn 0.02, Ag/Al/Cu/Mg/Ni/Bi 0.005	Total ≤0.5
	Size		≤1.5 or 3-8mm or ≤25g lump, -100mesh powder
	Packing		1kg in composite Aluminum bag or plastic bottle, carton box outside
Single Crystal Cadmium Telluride CdTe	6N 7N Purity		6N CdTe total Impurity 1.0ppm max. 7N CdTe total Impurity 0.1ppm max.
	Orientation		<100>, <110>, <111>
	Surface Roughness		<10 Å
	Surface Finish		Polished/Etched, Polished/Polished
	Size		5x5, 10x10, 20x20 x thickness (0.5, 1.0 or 3.0) mm
	Packing		Single piece in cassette or container, with vacuum bag outside.

Cadmium Telluride CdTe is principally employed for several applications such as an infrared optical window and lens, thin film solar cell material, PIN semiconductor structure manufacturing, Infrared imaging, X-ray and gamma ray detection, optical devices, and photovotaic, epitaxial substrate; evaporation source of crystal sheet, electro-optic modulators designing or target materials epitaxial processing and other related fields. Besides, CdTe crystals can be used for spectral analysis and far infrared transmission and can be alloyed with mercury to make a versatile HgCdTe MCT infrared detector material, and alloyed with zinc to make CdZnTe solid x-ray and gamma ray detector.