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What do you call a single element semiconductor material such as silicon and germanium?
Intrinsic semiconductivity
Does germanium form a monatomic or diatomic in pure form?
Neither, it is a crystalline solid in pure form.
What does germanium smell like?
Germanium itself does not have a distinct odor. It is a metalloid and is typically odorless in its pure form.
What kind of odor does germanium have?
The pure element has no odor as it is a solid and nonvolatile.
How do you make a pure sample of germanium?
This depends on how pure you want it. For most purposes chemical reagent grade germanium is adequate and it can be purchased from most chemical supply houses quite inexpensively. For electronics purposes however you need the much purer semiconductor grade germanium which can also be purchased easily but at a higher price. There is no real reason to want to go to the trouble of making either.However I will explain the method by which reagent grade germanium is purified to semiconductor grade germanium. This requires several hundred cycles of a process called zone melting which is a form of fractional crystallization. This is performed by placing the germanium in a special elongated crucible called a graphite boat, because it is made of highly pure boron free graphite (similar to that used as the moderator in graphite moderated nuclear reactors) so that the crucible does not itself recontaminate the germanium and its long narrow shape resembling a boat. The germanium is then melted by sliding the boat through a ring shaped electrically heated furnace that melts only a narrow zone across the width of the boat, which recrystallizes as it leaves the furnace. As the boat passes through the furnace the impurities concentrate in the melted zone and when the boat is removed from the furnace leaves the impurities concentrated in that tail end of the boat that was last to leave the furnace. After roughly every 20 cycles through the furnace the graphite boat is broken up and the germanium crystal removed and the tail end is cut off and recycled as scrap because it contains too high a concentration of impurities. The germanium is now placed in a fresh graphite boat along with germanium of similar purity from other boats and processing continues until the desired semiconductor grade purity is reached.
Are there any pure forms of semi conductors other than germanium and silicon?
gaAs is semiconductor
Is gold a better conductor than germanium?
Yes. Pure gold is a much better conductor than pure germanium is.
Is germanium n type semiconductor?
Yes, germanium can be doped to become an n-type semiconductor by introducing donor impurities such as phosphorus or arsenic. This process increases the number of free electrons in the material, giving it an excess of negative charge carriers.
What do you call a single element semiconductor material such as silicon and germanium?
Intrinsic semiconductivity
What is extrinsic and intrinsic?
A semiconductor material with electrical properties essentially characteristic of ideal pure crystal. Essentially silicon or germanium crystal with no measurable impurities
What is intrinsic and extrinsic material?
A semiconductor material with electrical properties essentially characteristic of ideal pure crystal. Essentially silicon or germanium crystal with no measurable impurities
What kind of material is a transistor made from?
The class of materials that make up transistors is "semiconductor." A transistor is often made from very pure silicon that is doped with germanium or other dopant to change its electrical properties.
How can you get a pure sample of germanium?
Pure germanium is obtained by distllation of germanium tetrachloride, followed by hydrolysis of GeCl4 to GeO2 and reducing of GeO2 with hydrogen to Ge.
How do you construct an n type semiconductor?
An n-type semiconductor is formed by doping a pure semiconductor (silicon or germanium, for example) with atoms of a Group V element, typically phosphorus or arsenic. The dopant may be introduced when the crystal is formed or later, by diffusion or ion implantation.
A semiconductor can be made by adding atoms of other elements to?
A semiconductor can be made by adding atoms of other elements to a pure semiconductor material, such as silicon or germanium. By selectively adding specific impurity atoms (dopants), the conductivity of the semiconductor material can be controlled, making it suitable for use in electronic devices like transistors and diodes.
Is pure silicon an insulator?
Pure silicon is a semiconductor.
What is the number of free electrons and holes in a pure semiconductor at 0k?
There are no free electrons and holes in a pure semiconductor at 0k.
