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Compound semiconductors are also known as direct band gap semiconductors.

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Compound semiconductors are also known as direct band gap semiconductors.

(a) True

(b) False

This question was addressed to me in examination.

Query is from Properties of Semiconductors in chapter Semiconductors of Engineering Physics II

1 Answer

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Correct answer is (a) True

To elaborate: In compound semiconductors, recombination takes place directly and its energy difference is emitted in the form of photons in the visible or infrared range. Hence the compound semiconductors are also known as direct band gap semiconductors.

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