What is called doping?

Doping means the introduction of impurities into a semiconductor crystal to the defined modification of conductivity. Two of the most important materials silicon can be doped with, are boron (3 valence electrons = 3-valent) and phosphorus (5 valence electrons = 5-valent).

What is the use of doping in semiconductor?

Doping is a technique used to vary the number of electrons and holes in semiconductors. Doping creates N-type material when semiconductor materials from group IV are doped with group V atoms. P-type materials are created when semiconductor materials from group IV are doped with group III atoms.

What are physical methods of doping?

Physical Methods include blood doping Gene doping. Blood doping : It is an illicit method of improving athletic performance by artificially boosting the blood ability to bring more oxygen to muscles. Blood doping increases the amount of hemoglobin in the blood stream.

What are types of doping?

Types of Doping (Classification)

• Stimulants.
• Anabolic Steroids.
• Peptide hormones.
• Beta-2 Agonist.
• Narcotics.
• Diuretics.
• Cannabinoids.

What substances are used in doping?

Following are some of the substances and methods used for doping in sport:

• ERYTHROPOIETIN (EPO) * EPO is a peptide hormone that is produced naturally by the human body.
• CERA.
• ANABOLIC STEROIDS.
• HUMAN GROWTH HORMONE.
• DIURETICS.
• SYNTHETIC OXYGEN CARRIERS.
• BLOOD DOPING.
• INSULIN.

What are the substance used in doping?

The three widely known substances or methods used for blood doping are erythropoietin (EPO), synthetic oxygen carriers and blood transfusions. Per the Mayo Clinic, EPO is a “large (193 amino acid residue) glycoprotein hormone secreted by the kidney which regulates the body’s red blood cell production.”