Chapter Name : Semiconductor Electronics: Materials, Devices And Simple Circuits |
Sub Topic Code : 101_12_14_06_01 |
Topic Name : Semiconductor Diode |
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Sub Topic Name : P-N Junction Diode Under Forward Bias |
A crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals.
Diode
Silicon (Si) is the most widely used material in semiconductor devices.
What is P-N Junction?
Key Words | Definitions (pref. in our own words) |
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P-N Junction | A junction between an n-type semiconductor and a p-type semiconductor. |
Gadgets | How it can be used |
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microprocessors | All transistor types can be used as the building blocks of logic gates, which are fundamental in the design of digital circuits. Transistors act as on-off switches; in the MOSFET, for instance, the voltage applied to the gate determines whether the switch is on or off. |
Building circuits.
Digital circuits.
Examples | Explainations |
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Solar cell | Electrical device that converts the energy of light directly into electricity by the photovoltaic effect. |
The most common function of a diode is to allow an electric current to pass in one direction (called the diode's forward direction), while blocking current in the opposite direction (the reverse direction).
The crystal allows electrons to flow from the N-type side (called the cathode) to the P-type side (called the anode), but not in the opposite direction.
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