Unbiased PN Junction
Electronics tutorial

Unbiased PN Junction: Depletion Region and Barrier Potential

A PN junction is one of the most important structures in semiconductor electronics. It forms the basic building block of many electronic devices such as diodes, transistors, LEDs, solar cells, rectifiers, and integrated circuits. When a P-type semiconductor and an N-type semiconductor are joined together without applying any external voltage, the junction is called an […]

Light Emitting Diode LED
Active components Diodes Electronic devices Electronics tutorial LEDs Working of Diode

Light Emitting Diode LED – Symbol, Construction, Working, Types and Applications

The Light Emitting Diode (LED) is one of the most widely used electronic components today, found in everything from indicator lights to full-scale lighting systems. It is a type of diode that converts electrical energy into light energy, offering a highly efficient alternative to traditional bulbs. Unlike incandescent lamps that rely on heating a filament, […]