0
Why only 3rd and 5th group elements are used for doping of a semiconductor why not other group elements?
III and V group atoms are used for doping in column IV materials. III and V relate to the number of valence electrons that are available for bonding. Silicon, which is a column IV material, is usually in a bonding form with 4 other Si atoms. In this bonding scheme, valence electrons are shared and the "outer shell" of 8 electrons is complete.
In doping, an atom replaces one of the Silicon atoms. A column V atom, such as Phosphorous, can replace a Silicon atom. The bonding will be the same, except that P will provide an extra electron to the system. With thermal energy, this electron can become disassociated with its original atom, thus ionizing the dopant and creating a free electron that can be used for conduction or other processes. In p-type doping, such as using Boron in Silicon, one of the bonds is not satisfied, since Boron only has 3 valence electrons. We call this absence of an electron a "hole".
In compounds such as GaAs, we have a III-V compound. In this case, you can use a column IV material for doping. So, Silicon can be used as a dopant for a III-V compound. If Si replaces a Ga atom, then Si acts like a donor. If Si replaces a As atom, Si acts like an acceptor. People in the field can use other factors, such as pressure, to preferentially select which atoms Si will replace.
What else can I help you with?
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 a semiconductor?
A silicon chip is a structure created by people using machines. The structure consists of a base, made of silicon with a small amount of other elements added, so this part is a mixture. The chip also has wiring and transistors printed on it, thus making the entire chip a structure rather than a mixture or pure substance.
Draw the table of semiconductor elements?
Sure, here is a concise table of common semiconductor elements: Silicon (Si): Widely used in electronic devices due to its abundance and semiconductor properties. Germanium (Ge): Another commonly used semiconductor with properties similar to silicon. Gallium (Ga): Used in specialized devices like LEDs and solar cells. Indium (In): Often used in combination with gallium to create indium gallium arsenide (InGaAs) for high-speed electronics. Arsenic (As): Combined with other elements to create semiconductor materials like gallium arsenide (GaAs) for high-frequency applications.
In group 2 on the periodic table are they positive ions when they bond with other elements?
Elements from the group 2 of the periodic table form cations.
What is the part of the periodic table that has elements that do not chemically react?
All of them tend not to react with each other until you get lower down the group
What term is given to the process of rearranging electrons in a semiconductor by adding atoms of other elements?
Doping is the term used to describe the process of adding atoms of other elements to a semiconductor to alter its electrical properties by rearranging the electrons.
What term is given the process of rearranging electrons in a semiconductor by adding atoms of other elements?
doping
What is the process in which trace amounts of other elements are added to a material to make it a semi conductor?
Doping.
Is boron conductive?
Boron is a semiconductor, meaning it has an intermediate level of conductivity between insulators and conductors. In its pure form, boron is not a good conductor of electricity, but its conductivity can be enhanced by doping or combining it with other elements.
What term is given to the process of rearranging electrons in a semiconducter by adding atoms of other elements?
This procedure is called doping.
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.
What is the process in which trace amounts of other elements are added to a material to make it a semiconductor?
Answer is that you are gay for not answering it for me
What is special about the elements in the same group?
elements are in the same group since they react similarly to other elements in that group.
How can semiconductor material be made to become either a conductor or an insulator?
Semiconductor material can be made to become a conductor by doping it with impurities that introduce extra charge carriers. This increases the material's conductivity. On the other hand, to turn semiconductor material into an insulator, it can be cooled to very low temperatures to reduce the thermal energy of the charge carriers, effectively halting conductivity.
Is pure silicon a semiconductor?
A silicon chip is a structure created by people using machines. The structure consists of a base, made of silicon with a small amount of other elements added, so this part is a mixture. The chip also has wiring and transistors printed on it, thus making the entire chip a structure rather than a mixture or pure substance.
How led lights work?
LEDs create light by electroluminescence in a semiconductor material. Electroluminescence is the phenomenon of a material emitting light when electric current or an electric field is passed through it - this happens when electrons are sent through the material and fill electron holes. An electron hole exists where an atom lacks electrons (negatively charged) and therefore has a positive charge. Semiconductor materials like germanium or silicon can be "doped" to create and control the number of electron holes. Doping is the adding of other elements to the semiconductor material to change its properties. By doping a semiconductor you can make two separate types of semiconductors in the same crystal. The boundary between the two types is called a p-n junction. The junction only allows current to pass through it one way, this is why they are used as diodes. LEDs are made using p-n junctions. As electrons pass through one crystal to the other they fill electron holes. They emit photons (light).
How readily astatine would be to form a salt compared to other elements in Group 17?
Astatine wouldn't form salt as readily as other elements in Group 17. Astatine is a radioactive metalloid. Other elements in Group 17 are nonmetals.
