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Total Photodiode Current Calculator

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✖Dark current is the electric current that flows through a photosensitive device, such as a photodetector, even when there is no incident light or photons striking the device.ⓘ Dark Current [I_d]			+10% -10%
✖Photodiode Voltage is the voltage across the diode junction.ⓘ Photodiode Voltage [V_ph]			+10% -10%
✖Temperature is the degree or intensity of heat present in a substance or object.ⓘ Temperature [T]			+10% -10%
✖Photocurrent is the electrical current produced by the photodetector when exposed to light.ⓘ Photocurrent [I_p]			+10% -10%

✖Output Current is the total output current at the operating voltage.ⓘ Total Photodiode Current [I_o]

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Total Photodiode Current Solution

STEP 0: Pre-Calculation Summary

Formula Used

Output Current = Dark Current*(exp(([Charge-e]*Photodiode Voltage)/(2*[BoltZ]*Temperature))-1)+Photocurrent
I_o = I_d*(exp(([Charge-e]*V_ph)/(2*[BoltZ]*T))-1)+I_p
This formula uses 2 Constants, 1 Functions, 5 Variables

Constants Used

[Charge-e] - Charge of electron Value Taken As 1.60217662E-19
[BoltZ] - Boltzmann constant Value Taken As 1.38064852E-23

Functions Used

exp - n an exponential function, the value of the function changes by a constant factor for every unit change in the independent variable., exp(Number)

Variables Used

Output Current - (Measured in Ampere) - Output Current is the total output current at the operating voltage.
Dark Current - (Measured in Ampere) - Dark current is the electric current that flows through a photosensitive device, such as a photodetector, even when there is no incident light or photons striking the device.
Photodiode Voltage - (Measured in Volt) - Photodiode Voltage is the voltage across the diode junction.
Temperature - (Measured in Kelvin) - Temperature is the degree or intensity of heat present in a substance or object.
Photocurrent - (Measured in Ampere) - Photocurrent is the electrical current produced by the photodetector when exposed to light.

STEP 1: Convert Input(s) to Base Unit

Dark Current: 11 Nanoampere --> 1.1E-08 Ampere (Check conversion here)
Photodiode Voltage: 302 Millivolt --> 0.302 Volt (Check conversion here)
Temperature: 85 Kelvin --> 85 Kelvin No Conversion Required
Photocurrent: 70 Milliampere --> 0.07 Ampere (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_o = I_d*(exp(([Charge-e]*V_ph)/(2*[BoltZ]*T))-1)+I_p --> 1.1E-08*(exp(([Charge-e]*0.302)/(2*[BoltZ]*85))-1)+0.07

Evaluating ... ...

I_o = 9.94218843963191

STEP 3: Convert Result to Output's Unit

9.94218843963191 Ampere --> No Conversion Required

FINAL ANSWER

9.94218843963191 ≈ 9.942188 Ampere <-- Output Current

(Calculation completed in 00.020 seconds)

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Created by Vaidehi Singh

Prabhat Engineering College (P.E.C.), Uttar Pradesh

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Chandigarh University (CU), Punjab

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< Optical Detectors Calculators

Incident Photon Rate

LaTeX Go Incident Photon Rate = Incident Optical Power/([hP]*Frequency Of Light Wave)

Long Wavelength Cutoff Point

LaTeX Go Wavelength Cutoff Point = [hP]*[c]/Bandgap Energy

Quantum Efficiency of Photodetector

LaTeX Go Quantum Efficiency = Number of Electrons/Number of Incident Photons

Electron Rate in Detector

LaTeX Go Electron Rate = Quantum Efficiency*Incident Photon Rate

Total Photodiode Current Formula

LaTeX Go

Output Current = Dark Current*(exp(([Charge-e]*Photodiode Voltage)/(2*[BoltZ]*Temperature))-1)+Photocurrent
I_o = I_d*(exp(([Charge-e]*V_ph)/(2*[BoltZ]*T))-1)+I_p

What is the significance of Total Photodiode Current?

The total photodiode current is significant because it is the sum of the dark current and the photocurrent. This total current is crucial for the operation and sensitivity of the photodiode. The photocurrent is linearly proportional to the irradiance, which is the power per unit area received from the light source. Therefore, the total current can provide information about the intensity of the incident light.

How to Calculate Total Photodiode Current?

Total Photodiode Current calculator uses Output Current = Dark Current*(exp(([Charge-e]*Photodiode Voltage)/(2*[BoltZ]*Temperature))-1)+Photocurrent to calculate the Output Current, Total Photodiode Current is the sum of the dark current and the photocurrent. The dark current is the current that is passed in the absence of light. The photocurrent is produced when a photon of sufficient energy strikes the diode, creating an electron-hole pair. Output Current is denoted by I_o symbol.

How to calculate Total Photodiode Current using this online calculator? To use this online calculator for Total Photodiode Current, enter Dark Current (I_d), Photodiode Voltage (V_ph), Temperature (T) & Photocurrent (I_p) and hit the calculate button. Here is how the Total Photodiode Current calculation can be explained with given input values -> 9.942188 = 1.1E-08*(exp(([Charge-e]*0.302)/(2*[BoltZ]*85))-1)+0.07.

FAQ

What is Total Photodiode Current?

Total Photodiode Current is the sum of the dark current and the photocurrent. The dark current is the current that is passed in the absence of light. The photocurrent is produced when a photon of sufficient energy strikes the diode, creating an electron-hole pair and is represented as I_o = I_d*(exp(([Charge-e]*V_ph)/(2*[BoltZ]*T))-1)+I_p or Output Current = Dark Current*(exp(([Charge-e]*Photodiode Voltage)/(2*[BoltZ]*Temperature))-1)+Photocurrent. Dark current is the electric current that flows through a photosensitive device, such as a photodetector, even when there is no incident light or photons striking the device, Photodiode Voltage is the voltage across the diode junction, Temperature is the degree or intensity of heat present in a substance or object & Photocurrent is the electrical current produced by the photodetector when exposed to light.

How to calculate Total Photodiode Current?

Total Photodiode Current is the sum of the dark current and the photocurrent. The dark current is the current that is passed in the absence of light. The photocurrent is produced when a photon of sufficient energy strikes the diode, creating an electron-hole pair is calculated using Output Current = Dark Current*(exp(([Charge-e]*Photodiode Voltage)/(2*[BoltZ]*Temperature))-1)+Photocurrent. To calculate Total Photodiode Current, you need Dark Current (I_d), Photodiode Voltage (V_ph), Temperature (T) & Photocurrent (I_p). With our tool, you need to enter the respective value for Dark Current, Photodiode Voltage, Temperature & Photocurrent and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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