Question

write the formula of quantum efficiency​

Answer 1

The quantum efficiency of a solar cell is defined as the ratio of the number of electrons in the external circuit produced by an incident photon of a given wavelength. Thus, one can define external and internal quantum efficiencies (denoted by EQE(λ) and IQE(λ), respectively).

Hope it helps..

Plz mark as brianliests answer

Answer 2

Quantum efficiency (QE) is a measure of the effectiveness of an imaging device at converting incident photons into electrons.

Explanation:

• The quantum efficiency of a solar cell is defined as the ratio of the number of electrons in an external circuit to that produced by an incident photon of a given wavelength.
• Thus, one can define the external and internal quantum potentials (denoted by EQE(λ) and IQE(λ) respectively).
• It is defined as the number of signal electrons produced per incident photon.
• In some cases it can exceed 100% (ie when more than one electron is created per incident photon).
• The term quantum efficiency (QE) may apply to the incident photon to changed electron (IPCE) ratio of a photosensitizing device, or it may refer to the TMR effect of a magnetic tunnel junction.