(a)
Interpretation:
When silicon is doped with Gallium, whether a
Concept Introduction:
Semiconductors:
Semiconductors are elements that conduct electricity at elevated temperatures because in the semiconductors elements, the electrons can cross the energy gap only at high temperatures. Therefore, conductivity of semiconductors increases with increasing temperatures as many electrons can able to reach the conduction band rapidly at elevated temperatures. Hence the conductivity of the semiconductors lies between that of insulators and good conductors like metals.
Inducing conductivity in semiconductors by the addition of impurities is known as doping.
If the added impurity is capable of providing conduction electrons, then it is known as donor impurity and the semiconductor with such an impurity is known as n-type semiconductor.
If the added impurity is being electron deficient, then it is known as acceptor impurity and the semiconductor with such an impurity is known as p-type semiconductor.
(b)
Interpretation:
When silicon is doped with Phosphorus, whether a
Concept Introduction:
Semiconductors:
Semiconductors are elements that conduct electricity at elevated temperatures because in the semiconductors elements, the electrons can cross the energy gap only at high temperatures. Therefore, conductivity of semiconductors increases with increasing temperatures as many electrons can able to reach the conduction band rapidly at elevated temperatures. Hence the conductivity of the semiconductors lies between that of insulators and good conductors like metals.
Inducing conductivity in semiconductors by the addition of impurities is known as doping.
If the added impurity is capable of providing conduction electrons, then it is known as donor impurity and the semiconductor with such an impurity is known as n-type semiconductor.
If the added impurity is being electron deficient, then it is known as acceptor impurity and the semiconductor with such an impurity is known as p-type semiconductor.
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Chemistry
- 8.96 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_forward8.97 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_forward
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