3.5 Electrons At Work Flashcards
What is PhotoVoltaic Effect
When potential difference is produced when photons enter the layer between the p-type and n-type materials.
What are Intrinsic/Pure Semiconductors
Semiconductors which have no impurities
When do Intrinsic/Pure Semiconductors become insulators
When they hit 0 Kelvin
What does having a higher temperature do in an intrinsic/pure semiconductors
They produce more electrons
What are the three types of conductor
Conductor
Semiconductor
Insulator
What is the Conductor only made of
The Conduction Band
What is the Semiconductor made of
Conduction Band
Valence Band
What is the insulator made of
Conduction Band
Valence Band
What is the Band Gap of the Conductor
None
What is the Band Gap of the SemiConductor
Small
What is the Band Gap of the Insulator
Large
Which Materials have the biggest Band Gap
Insulators
What do n-type materials have more of
Extra electron energy levels
What do p-type materials have more of
Extra hole energy levels
What is an n-type semiconductor
When the majority of charge carries are negatively charged electrons in an electric field
What is a p-type semiconductor
When the majority of charge carries positively charged holes in an electric field
What group are n-type semiconductors part of
Group 5
What group are p-type semiconductors part of
Group 3
What are the n-type semiconductors known as
The Donor
What are the p-type semiconductors known as
The acceptor
What is the Band Gap also known as
The Fermi Level
What happens when an electron leaves its position
Leaves a space that is positively charged known as a hole
What is the lack of an electron known as
A positive hole
What is a Doped/Extrinsic Semi Conductor
When a particle is added to the semiconductor
