The energy released by the excited phosphor centers is emitted as which form of energy?

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Multiple Choice

The energy released by the excited phosphor centers is emitted as which form of energy?

Explanation:
When a phosphor is excited, the electrons are promoted to higher energy levels and then return to lower levels. If the relaxation is radiative, it releases energy as photons, which we perceive as light. The exact color (wavelength) depends on the dopant ions and host lattice, but the emitted energy from the excited centers is light. (Some energy can also be lost as heat through non-radiative paths, but the radiative emission from the centers is light.)

When a phosphor is excited, the electrons are promoted to higher energy levels and then return to lower levels. If the relaxation is radiative, it releases energy as photons, which we perceive as light. The exact color (wavelength) depends on the dopant ions and host lattice, but the emitted energy from the excited centers is light. (Some energy can also be lost as heat through non-radiative paths, but the radiative emission from the centers is light.)

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