We will see in Chapter 12 that semiconductors are materialsthat conduct electricity better than nonmetals but not as wellas metals. The only two elements in the periodic table that aretechnologically useful semiconductors are silicon and germanium.Integrated circuits in computer chips today are based onsilicon. Compound semiconductors are also used in the electronicsindustry. Examples are gallium arsenide, GaAs; galliumphosphide, GaP; cadmium sulfide, CdS; and cadmium selenide,CdSe. (a) What is the relationship between the compoundsemiconductors’ compositions and the positions of their elementson the periodic table relative to Si and Ge? (b) Workers inthe semiconductor industry refer to “II–VI” and “III–V” materials,using Roman numerals. Can you identify which compoundsemiconductors are II–VI and which are III–V? (c) Suggest othercompositions of compound semiconductors based on the positionsof their elements in the periodic table.

We will see in Chapter 12 that semiconductors are materialsthat conduct electricity better than nonmetals but not as wellas metals. The only two elements in the periodic table that aretechnologically useful semiconductors are silicon and germanium.Integrated circuits in computer chips today are based onsilicon. Compound semiconductors are also used in the electronicsindustry. Examples are gallium arsenide, GaAs; galliumphosphide, GaP; cadmium sulfide, CdS; and cadmium selenide,CdSe. (a) What is the relationship between the compoundsemiconductors’ compositions and the positions of their elementson the periodic table relative to Si and Ge? (b) Workers inthe semiconductor industry refer to “II–VI” and “III–V” materials,using Roman numerals. Can you identify which compoundsemiconductors are II–VI and which are III–V? (c) Suggest othercompositions of compound semiconductors based on the positionsof their elements in the periodic table.

Similar questions

I need the answer as soon as possible
Compound semiconductors can be doped to make n-type andp-type materials, but the scientist has to make sure that theproper atoms are substituted. For example, if Ge were dopedinto GaAs, Ge could substitute for Ga, making an n-type semiconductor;but if Ge substituted for As, the material would bep-type. Suggest a way to dope CdSe to create a p-type material
In a pure ("intrinsic") semiconductor material is heated, the thermal energy liberates some valence-band electrons into the conduction band. The vacancies left behind in the valence band are called holes: If an electrical voltage is applied across the heated semiconducting substance, with positive on the left and negative on the right, what will this do to the energy bands, and how will this affect both the electrons and the holes?
Surface recombination in semiconductors is often undesirable for many device applications. Please useyour knowledge of semiconductor to describe why? Also what might be the strategy to control andeliminate surface recombination?
5047c73f&bd%3DAMTQ4OF9jdF9jaA%3D%3D&tsi=163&et= TAnywhere Jump to Section : 1 of 1 Question : 4 of 5 Marks for this Question : 10 Upload answer sheets Consider a silicon pn junction at 300 K under no applied bias. Calculate the space charge widths extended into p andn type regions(x, & Xn)of semiconductor with doping concentrations Na relative permittivity (E,) of Si is 11.7 and n; =1.5 ×101ºcm-3, 1016 cm-3 and Na 1015 cm-3 respectively. Given ст Once you upload files from your second device, click on Symm OCamera Clear Response Finish
Talk about the working areas of the FET showing this with the illustration. Several advantages of the transistor
How does a semiconductor vary from a conductor and an insulator, and what does it do? In your explanation, including a chart.
What do we call an undoped semiconductor? [A] Intrinsic semiconductor [B] Extrinsic semiconductor [C] p-type semiconductor [D] None of the above
Do you know how a diode and an LED are related to semiconductors? Use a diagram with a short explanation of the symbol.
I need the answer as soon as possible
Germanium is a semiconductor. With the aid of diagrams showing bands of molecular orbital, explain why it is a poor conductor and how doping it with phosphorus increases its conductivity.