Question

Why Band gap decreases with increase in temperature ?​

Answer 1

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The energy bandgap of semiconductors tends to decrease as the temperature is increased. This behaviour can be better understood if one considers that the interatomic spacing increases when the amplitude of the atomic vibrations increases due to the increased thermal energy.

Answer 2

Here is Your Answer:-

•The energy bandgap of semiconductors tends to decrease as the temperature is increased.

•This behaviour can be better understood if one considers that the interatomic spacing increases when the amplitude of the atomic vibrations increases due to the increased thermal energy.