The application of Cadmium telluride

Cadmium telluride can be alloyed with mercury to make a versatile infrared detector material (HgCdTe). Cadmium telluride alloyed with a small amount of zinc makes an excellent solid-state X-ray and gamma ray detector (CdZnTe).
Cadmium telluride is used as an infrared optical material for optical windows and lenses but it has small application and is limited by its toxicity such that few optical houses will consider working with it. An early form of  Cadmium telluridefor IR use was marketed under the trademarked name of Irtran-6 but this is obsolete.
Cadmium telluride is also applied for electro-optic modulators. It has the greatest electro-optic coefficient of the linear electro-optic effect among II-VI compound crystals (r41 = r52 = r63 = 6.8 × 10-12 m / V).
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