Interpretation:
The reason why the elements Sn and Pb that are a part of group
Concept introduction:
Semiconductors are the solids thathave a conductivity in-between those of conductors and insulators.
In semiconductors, the gap between the conduction band and the valence band is small, so electrons may jump from the valence band to the conduction band.
Conduction band: The conduction band is the band of electron orbitals that electrons can jump up into from the valence band when excited.
Valence band: The valence band is the band of electron orbitals that electrons can jump out of, moving into the conduction band when excited.
A Dopant, also called a doping agent, is a trace impurity element that is inserted into a substance (in very low concentrations) to alter the electrical or optical properties of the substance.
Doping: Addition of dopant is doping.
n-Type semiconductor: A semiconductor that has been doped with electron donor atoms is called an n-type semiconductor.
p-Type semiconductor: A semiconductor that has been doped with electron acceptor atoms is called a p-type semiconductor
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Chemistry
- 8.97 The doping of semiconductors can be done with enough precision to tune the size of the band gap in the material. Generally, in order to have a larger band gap, the dopant should be smaller than the main material. If you are a materials engineer and need a semiconductor that has lower conductivity thin pure silicon, what clement or elements could you use as your dopant? (You do not want either an n- or a p- type material) Explain your reasoning.arrow_forward8.96 A business manager wants to provide a wider range of p- and n-type semiconductors as a strategy to enhance sales. You are the lead materials engineer assigned to communicate with this manager. How would you explain why there are more ways to build a p-type semiconductor from silicon than there are ways to build an n-type semiconductor from silicon?arrow_forwardWhy is the C 60form of carbon called buckminsterfullerene?arrow_forward
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