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Calculator

PV Calculation Tools

Use these tools to calculate key photovoltaic parameters from your measurement data.

Jsc and Eg from EQE

Upload an EQE spectrum (CSV file with two columns: wavelength in nm and EQE in %) to calculate the short-circuit current density (Jsc) and bandgap energy (Eg).

Two columns: wavelength (nm), EQE (%). No header row. Separator: comma, semicolon or tab.
nm
Required to determine Eg per fit from EQE
nm
Required to determine Eg per fit from EQE
PCE, Jsc, Voc, and FF from JV curve

Upload a JV curve (CSV file with two columns: voltage in V and current density in mA/cm²) to calculate the short-circuit current density (Jsc), open-circuit voltage (Voc), fill factor (FF), and power conversion efficiency (PCE).

Two columns: voltage (V), current density (mA/cm²). No header row. Separator: comma, semicolon or tab.
Fatigue Factor from Bending Test

Calculate the Flexible PV fatigue factor (F) as proposed by Sun et al. Enter the layer thicknesses, bending parameters, and PCE before/after bending.

Layer thicknesses (µm)
Bending parameters
PCE values (%)
AVT from Transmittance

Upload a transmittance spectrum (CSV file with two columns: wavelength in nm and transmittance in %) to calculate the average visible transmittance (AVT).

Two columns: wavelength (nm), transmittance (%). No header row. Separator: comma, semicolon or tab.
Lifetime and Energy Yield from Operational Stability Measurement

Upload a stability test dataset (CSV file with two columns: time in hours and PCE in %) to calculate lifetime metrics such as T80, T95, and retained PCE values.

Two columns: time (h), PCE (%). No header row. Separator: comma, semicolon or tab.
mW/cm²
Light intensity during the stability test (1 sun = 100 mW/cm²)