Why is germanium more temperature dependent than silicon?

Why is germanium more temperature dependent than silicon?

Germanium is more temperature sensitive than silicon because it has a smaller band gap. Even at moderate temperature, a substantial number of electrons in germanium are produce from thermal generation. For example at about 120 C, the concentration of electrons and holes from thermal generation is > 1E15.

Why are germanium and silicon not efficient conductors?

Pure silicon and germanium are poor conductors of electricity because their outer electrons are tied up in the covalent bonds of the diamondlike framework. Electrical conductivity decreases as temperature increases in metals because the vibrations of the atoms make passage of electrons more difficult.

Why Germanium is a semiconductor?

Germanium atoms have one more shell than silicon atoms, but what makes for the interesting semiconductor properties is the fact that both have four electrons in the valence shell. As a consequence, both materials readily constitute themselves as crystal lattices. Substituted atoms alter the electrical properties.

What is an type Si semiconductor?

Silicon. A silicon atom has 14 electrons around the nucleus, and of these, there are 4 valence electrons on the outermost orbital. When this is made into a single crystal, it can be used as a material for semiconductor products. Forming crystals by bonding silicon atoms in a regular structure.

What is p-type material?

A p-type semiconductor is an extrinsic type of semiconductor. A p-type semiconductor has more holes than electrons. This allows the current to flow along the material from hole to hole but only in one direction. Semiconductors are most often made from silicon.

Why gold is used in CPU?

Gold is the highly efficient conductor that can carry these tiny currents and remain free of corrosion. Electronic components made with gold are highly reliable. Gold computer connections: Gold in a computer memory chip.