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Photodiode Quantum Efficiency | Definition, equation, calculator

This page describes Photodiode Quantum Efficiency definition. It mentions Photodiode Quantum Efficiency equation/formula and Photodiode Quantum Efficiency calculator.

Definition: The quantum efficiency is defined as fraction of incident photons which are absorbed by photoconductor and generated electrons which are collected at the detector terminal.

In other words, Quantum efficiency is defined as fraction of incident photons which contribuite to photocurrent. It is related to responsivity as per following equation.
Q.E. = 1240 * (Rλ/λ) ;
Where,
Rλ = Responsivity in A/W and
λ = Wavelength in nm

Photodiode Quantum Efficiency Calculator

Number of collected electrons/holes, Re (input1) :

Number of incident photons, Rp (input2) :


Quantum Efficiency, η (Output1):


Example of Photodiode Quantum Efficiency calculator:
INPUTS : Re = 1e5, Rp = 1.5e5
OUTPUTS: Quantum Efficiency (Q.E.) = 66.66%


Photodiode Quantum Efficiency Equation | Photodiode Quantum Efficiency Formula

Following equation or formula is used for Photodiode Quantum Efficiency calculator.


Photodiode Quantum Efficiency equation,Photodiode Quantum Efficiency formula

Photodiode calculators and terminologies

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Quantum Efficiency
Responsivity
Sensitivity

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