Class 12 Physics simulations · Semiconductor Electronics

P–N junction diode

Apply a voltage and watch the depletion region change with forward or reverse bias.

Open the simulation

What to notice

Forward bias reduces the barrier; reverse bias widens the depletion region.

Key relation

Forward bias → narrow junction

Try this

Move the voltage through zero and compare carrier movement.

What you can change

• Applied voltage: -2 to 2 V

More in Semiconductor Electronics

• Electrons and holes in doped silicon
• Diode I–V characteristic
• LED colour and band gap
• Logic gates
• Half-wave rectifier
• Rectifier with a smoothing capacitor
• Solar cell: I–V curve and maximum power
• Transistor as a switch
• Zener voltage regulator

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