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Tag: Doping

Semiconductors

Science > Physics > Semiconductors > Introduction Semiconductors are the substances whose conductivity lies between the conductors and insulators e.g. Germanium, Silicon, etc. These elements are members of the fourth group of the periodic table with valency 4. These elements have a partially filled conduction band and partially filled valence band. There are no free […]

Physics

PN Junction Diodes

Science > Physics > Semiconductors > PN Junction Diodes When a crystal of semiconductor is doped such that half the portion of the crystal is doped with a trivalent impurity and the other half is doped with a pentavalent impurity, then the junction (boundary) formed is called a PN junction. The crystal itself is called […]

Physical Chemistry

Semiconductors

Science > Chemistry > Solid State > Semiconductors On the basis of electrical conductivity, substances can be classified into three types conductors, insulators, and semiconductors. In this article, we shall have a brief idea of semiconductors. Semiconductors are the substances whose conductivity lies between the conductors and insulators e.g. Germanium, Silicon, etc. They are covalent solids. […]

Tags Chemistry, Conduction band, Conductors, Doping, Electrical conductivity, Electrical properties, Electricity, Extrinsic Semiconductors, Insulators, Intrinsic semiconductors, Metallic bonds, N-type semiconductors, P-type semiconductors, Pure silicon crystal, Semiconductors, Solid-state, Valence band