Germanium State At Room Temperature

Germanium was tested for use in photodetectors due to its small bandgap or the easier.

Germanium state at room temperature.

α phase being most phase for. Germanium chemical symbol ge has a melting point of 938 25 â c or â 1720 85 â f. It is often found in compound state or in minerals. Assume that the energy bandgap is independent of temperature and given by the values provided below.

Germanium telluride exists in three major crystalline forms room temperature α rhombohedral and γ orthorhombic structures and high temperature β cubic rocksalt type phase. First proposed to exist by dmitri mendeleyev in 1871 based on gaps in his newly created periodic table of elements germanium was discovered by the german chemist clemens winkler in the mineral argyrodite ag 8 ges 6 in 1886 today germanium is primarily obtained from the smelting of zinc ores and from the byproducts of burning certain types of coal. In solid state electronics either pure silicon or germanium may be used as the intrinsic semiconductor which forms the starting point for fabrication. 1 720 9 degrees fahrenheit 938 3 degrees celsius.

Germanium is a chemical element with the symbol ge and atomic number 32. Germanium is a solid at room temperature and is a nonmetal and the call name is ge. Germanium is found in the earth s crust at about 1 6 parts per million. Germanium is recyclable and about 35 of it are used annually from reclaimed sources.

Each has four valence electrons but germanium will at a given temperature have more free electrons and a higher conductivity silicon is by far the more widely used semiconductor for electronics partly because it can be used at much higher. The effective density of states for electrons in the conduction band is calculated from. What type of element is germanium. Repeat at 100 c.

Phase at room temperature. Calculate the intrinsic carrier density in germanium silicon and gallium arsenide at room temperature 300 k. It s hard at room temperature and looks metallic with a shiny silvery grey finish but it s a semiconductor without some of the key properties of a metal. Germanium itself is classified as a metalloid.

Germanium in a pure form is too highly reactive to occur naturally. Most elements are either metals or nonmetals. Germanium falls in the same group as carbon and silicon but also as tin and lead. It is a lustrous hard brittle grayish white metalloid in the carbon group chemically similar to its group neighbours silicon and tin pure germanium is a semiconductor with an appearance similar to elemental silicon.

K is a solid. Thus it will be a solid at room temperature. It appears as a shiny hard metal and has applications in. Like silicon germanium naturally reacts and forms complexes with oxygen in nature.