quantum efficiency

How is Quantum Efficiency Measured?

Quantum efficiency is typically measured by shining light of a known wavelength and intensity onto the device and then measuring the resulting electrical current or light emission. The QE can be calculated using the formula:
QE = (Number of charge carriers generated) / (Number of incident photons)
The measurement setup often includes a light source, a monochromator to select specific wavelengths, and a detector to measure the output.

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