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Explain why elemental semiconductor cann...

Explain why elemental semiconductor cannot be used to make visible LEDs.

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To explain why elemental semiconductors cannot be used to make visible LEDs, we can break down the explanation into several steps. ### Step-by-Step Solution: 1. **Definition of Elemental Semiconductors**: - Elemental semiconductors are materials that are composed of a single element, primarily from group 14 of the periodic table. Common examples include silicon (Si) and germanium (Ge). 2. **Understanding Bandgap Energy**: ...
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