Silver telluride
From Infogalactic: the planetary knowledge core
Silver telluride | |
Names | |
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Other names | |
Identifiers | |
12002-99-2 ![]() |
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PubChem | 6914515 |
Properties | |
Ag2Te | |
Molar mass | 341.3364 g/mol |
Appearance | grey-black crystals |
Density | 8.318 g/cm³ |
Melting point | 955 °C (1,751 °F; 1,228 K) |
Refractive index (nD)
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3.4 |
Structure | |
Monoclinic, mP12 | |
P21/c, No. 14 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references | |
Silver telluride (Ag2Te) is a chemical compound, a telluride of silver, also known as disilver telluride or silver(I) telluride. It forms a monoclinic crystal. In a wider sense, silver telluride can be used to denote AgTe (silver(II) telluride, a metastable compound) or Ag5Te3.
Silver(I) telluride occurs naturally as the mineral hessite, whereas silver(II) telluride is known as empressite.
Silver telluride is a semiconductor which can be doped both n-type and p-type. Stochoimetric Ag2Te has n-type conductivity. On heating silver is lost from the material.
Non-stoichiometric silver telluride has shown extraordinary magnetoresistance.
References
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See also
Related materials
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