What is the effect of temperature on the conductivity of intrinsic semiconductor

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Question: What is the effect of temperature on the conductivity of intrinsic semiconductors? (2021)

Options:

Correct Answer: Conductivity increases

Exam Year: 2021

Solution:

As temperature increases, more electrons gain enough energy to jump the band gap, increasing conductivity.

What is the effect of temperature on the conductivity of intrinsic semiconductors? (2021)

What is the effect of temperature on the conductivity of intrinsic semiconductors? (2021)

Step 1: Understand what intrinsic semiconductors are. They are pure materials that have no impurities.
Step 2: Know that conductivity is the ability of a material to conduct electricity.
Step 3: Learn that in intrinsic semiconductors, electrons are needed to conduct electricity.
Step 4: Recognize that electrons are usually in a lower energy state and need energy to move to a higher state.
Step 5: Understand that temperature is a measure of how much energy particles have.
Step 6: Realize that as temperature increases, the energy of the electrons also increases.
Step 7: Know that with more energy, more electrons can jump from the lower energy state to the higher energy state (the band gap).
Step 8: Conclude that when more electrons jump to the higher state, the conductivity of the semiconductor increases.

No concepts available.