Silver telluride
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| Silver telluride | |
|---|---|
| Image:Silver telluride.jpg | |
| General | |
| Other names | Hessite |
| Molecular formula | Ag2Te |
| Molar mass | 341.3364 g/mol |
| Appearance | black crystals |
| Crystal Structure | orthorhombic |
| CAS number | [12002-99-2] |
| Properties | |
| Density and phase | 8.4 g/cm3, solid |
| Melting point | 955 °C |
| Boiling point | |
| Mohs hardness | 2.5 |
| a Lattice constant | 5.29Å |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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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.
Silver telluride occurs naturally as the minerals hessite and 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.
Contents |
[edit] References
- Phase Transition of Ag-Enriched Ag2Te, F. F. Aliev, Inorganic Materials, Vol. 38, (10), pp. 995-997 (2002)
- Large positive magnetoresistance in thin films of silver telluride, I. S. Chuprakov and K. H. Dahmen, Applied Physics Letters Vol. 72, (17), pp. 2165-2167 (1998) DOI:10.1063/1.121309
- Fundamental Optical Absorption in β-Silver Telluride, Richard Dalven, Phys. Rev. Lett. 16, 311–312 (1966) DOI:10.1103/PhysRevLett.16.311
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[edit] Related materials
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