Zinc telluride

Red-brown, red crystals

Fixed

6.34 g · cm -3

1240 ° C

Attention

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Zinc telluride ( ZnTe ) is a crystalline compound from the group of Telluride, which is formed from zinc and tellurium with a ( cubic ) zinc blende crystal structure (space group F43m ).

Production and representation

Zinc telluride can be obtained directly from the elements in vacuum at 800-900 ° C.

Properties

Zinc telluride is a gray powder that is red when bruised. Exclusion of moisture, it is durable. Water and dilute acids decompose it with the formation of hydrogen telluride.

In its crystalline form, it is a semiconductor having a direct band gap from 2.23 to 2.25 eV, and is one of the II-VI compound semiconductors.

Use

Zinc telluride can be doped easily and is used in optoelectronics for the production of blue light emitting diodes, laser diodes and solar cells as a material. Furthermore, it is in combination with cadmium telluride ( CdTe) in pin diodes in high-frequency electronic circuits application.

Zinc telluride cadmium is used in combination with (1-x ) th, which allows modeling of the band gap, and thus the optical characteristics by different Mischungssverhältnisse as a basis for ternary semiconductors such CdxZn.

In combination with lithium, it is used in the field of nonlinear optics to generate terahertz radiation.

Related compounds

• Mercury telluride ( HgTe, CAS: 12068-90-5 )
• Cadmium selenide ( CdSe, CAS: 1306-24-7 )