In a silicon semiconductor, aluminum material is added. a) What are the majority and minority charge carriers in the resultant semiconductor? b) Why is the resultant semiconductor still electrically neutral?
Analysis of Diode
It is a semiconductor device in electronics applications where only a one-way current is required. It is like a one-way switch that allows current to flow in one direction only. A diode has two terminals, a cathode, and an anode. The cathode is the negative terminal that carries electrons, while the anode is the positive terminal that carries holes. Although no element has holes, it just means that there is a free space for electrons. Diodes are used to convert AC to DC. As we know, AC shifts between positive and negative cycles and DC stays positive constantly. As the diodes allow current only in one direction, they filter out the AC signal’s negative cycle and only keep the positive one.
Working and Construction
In civil engineering, construction means the application of principles of science and mathematics for building bridges, dams, buildings, roads, highways, tunnels, airports, structures, etc. Different branches of science, like physics and chemistry, are extensively applied to design and analysis in construction. Material properties, the science of atmospheric conditions (like solutions, mixtures, etc.), the impact of environmental factors like, corrosion and acidity are some of the primary knowledge of chemistry which are used by civil engineers to carry out construction. Estimation of forces, application of laws of mechanics, fluids mechanics, soil mechanics, etc. are some of the fundamental concepts of physics, which are well applied in construction works. Building construction and structural engineering are two of the most primary areas in civil engineering that parallelly applies principles of both chemistry and physics to carry on construction works.
Property of Diode
An electronic component that facilitates the directional flow of current is known as a diode. According to the direction of the flow of current, the resistance of a diode changes from zero to Infinity.
In a silicon semiconductor, aluminum material is added.
a) What are the majority and minority charge carriers in the resultant semiconductor?
b) Why is the resultant semiconductor still electrically neutral?
Ans. a) Electrons are majority charge carrier and Holes are minority charge carriers n-type semiconductor.
While Electrons are minority charge carrier and holes are majority charge carriers in a p-type semiconductor.
Charge lack of bias of semiconductor material is kept up in light of the fact that energized contributor locales balance the conduction electrons. The net outcome is that the quantity of conduction electrons is expanded, while the quantity of openings is decreased. The irregularity of the transporter fixation in the individual groups is communicated by the diverse outright number of electrons and openings. Electrons are dominant part transporters, while openings are minority transporters in n-type material.
Charge neutrality of this semiconductor material is also supported. The remaining result is that the number of electron holes is increased, while the number of conduction electrons is reduced. The inequality of the carrier strength in the respective bands is represented by the different absolute number of electrons and holes. Electron holes are majority carriers, while electrons are minority carriers in the p-type material.
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