energy band

American  

[en-er-jee band] / ˈɛn ər dʒi ˌbænd /

noun

1. Physics. a group of energy levels that exist in a solid, in which electrons behave according to whichever level they occupy. See conduction band; valence band.

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energy band British  

noun

1. physics a range of energies associated with the quantum states of electrons in a crystalline solid. In a semiconductor or an insulator there is a valence band containing many states, most of which are occupied. Above this is a forbidden band with only a few isolated states caused by impurities. Above this is a conduction band containing many states most of which are empty. In a metal there is a continuous valence-conduction band See also energy gap

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Example Sentences

Describe the models presented and why they better explain the behavior of dark energy compared to existing models.

From Science Daily • Nov. 4, 2025

"If we change that balance, for example by increasing greenhouse gas concentrations, we reduce the amount of outgoing energy compared to what's coming in and we heat the climate."

From BBC • May 28, 2024

This sleek, polished black burner uses induction—basically, magnets—to speed cooking time and save energy compared to traditional electric coils.

From Slate • Apr. 7, 2024

The poll also found that 62% of Republicans and 56% of independents support using nuclear energy, compared to 46% of Democrats.

From Washington Times • Apr. 25, 2023

Fossil fuels now supply about 83% of the world’s commercial energy, compared to 86% in the year 2000.

From Los Angeles Times • Sep. 5, 2022