Conductivity in the Semiconductor
The current flowing though a semiconductor material is depending on two types of phenomena. This defines how semiconductor conducts electricity through it.
The current flowing though a semiconductor material is depending on two types of phenomena. This defines how semiconductor conducts electricity through it.
When conductor heated by external source, the atoms are situated in the fixed locations, tends to vibrate. This vibration causes release the free electron from an atom which movement in surrounding mass of the electrons.
Effect of the Heat and Light while movement of electrons in semiconductor Read More »
It is known as accuracy and precision in the instrumentation are more important characteristics in an measurement.
A half wave bridge rectifier is an electronic circuit which allows unidirectional current to flow through load during only one-half period of a complete one input AC cycle.
Rectifier is an electronic device , which converts alternating current supply into direct current supply with help of diode .
An Instrumentation system need various element for its proper function from read the physical quantity to measure quantity observed by observer or end user.
There are few materials which conductivity is around 10-4 ohm-m to 0.5 Ohm-m at normal ambient temperature. But materials are also having resistivity in this range. But a very important criteria that actual semiconductor materials are negative temperature co-efficient of resistance and act as insulator in absolute 0°K temperature.
ntrinsic semi-conductor is chemically pure and no doped using any impurities. It is a single metal piece either silicon or germanium. All intrinsic semiconductors are obeying solid metals energy bond diagram. In an intrinsic semiconductor free electrons are almost equal to no of holes.
Semiconductor is a material which conducting state is in between conductor and insulator. A semiconductor offer resistance to flow of electrons about 1×10-7 to 0.5 x 10-3 Ohm(Ω).
The amount of energy available in electron is depends on orbit of an atom which it configured. The energy levels of electrons within their shell can be caused due to the changes in their energy levels. According to their energy level the band are classified as below,
Energy Band for Conductors Insualtors Semiconductors Read More »
Some certain materials are in materials are behaves in between conductor and insulator. These materials are called as semiconductors. Its resistivity measure between insulator and conductor. These are few popular semiconductor materials are widely used world wide