P-N Junction

Bandgap determines the type of material.

Label each material

a

b

c

Metal

Insulator

Semiconductor

Material that has extra electrons is called​ (a)   . Material that has extra holes (lack of electrons) is called ​ (b)  

• n-type
• p-type
• true
• negative
• positive

A diode is a device made of a

• thermistor

• resistor

• p-n junction

• metal

Depleation region is like a (a)   . If we apply ​ (b)   voltage, we lower the barrier and current can flow. ​ (c)   voltage creates miniscule current, but if enough of it is applied a diode will ​ (d)   and a lot of current will flow.

• Barrier
• Forward
• Reverse
• Breakdown

Watch the video and reorder the following

• And then the diode is...

• The diode is at first

• reverse biased

• forward biased