Silver telluride
 | |
| Names | |
|---|---|
| Other names | |
| Identifiers | |
12002-99-2  | |
| 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) |
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
- Aliev, F. F. (2002). Inorganic Materials 38 (10): 995. doi:10.1023/A:1020512918319. Missing or empty
|title=(help) - Chuprakov, I. S.; Dahmen, K. H. (1998). "Large positive magnetoresistance in thin films of silver telluride". Applied Physics Letters 72 (17): 2165. Bibcode:1998ApPhL..72.2165C. doi:10.1063/1.121309.
- Dalven, Richard (1966). "Fundamental Optical Absorption in β-Silver Telluride". Physical Review Letters 16 (8): 311. Bibcode:1966PhRvL..16..311D. doi:10.1103/PhysRevLett.16.311.
See also
Related materials
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