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BS EN 60904-8:2014

BS EN 60904-8:2014

$142.49

Photovoltaic devices – Measurement of spectral responsivity of a photovoltaic (PV) device

Published By Publication Date Number of Pages
BSI 2014 26
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This International Standard specifies the requirements for the measurement of the spectral responsivity of both linear and non-linear photovoltaic devices. It is only applicable to single-junction devices. The spectral responsivity of a photovoltaic device is used in cell development and cell analysis, as it provides a measure of recombination and other processes occurring inside the semiconductor or cell material system.

The spectral responsivity of a photovoltaic device is used for the correction of the spectral mismatch if a PV device is calibrated in a setup where the measurement spectrum is different from the reference spectral irradiance data given in IEC 60904‑3 and a reference device with a different spectral responsivity to the device under test is used. This procedure is given in IEC 60904‑7 .

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PDF Pages PDF Title
6 English
CONTENTS
8 1 Scope
2 Normative references
3 Marking
9 4 Testing
4.1 General
4.2 Special considerations
4.3 Measurement under white bias light
4.4 Applying a bias voltage to the device under test
5 General description of spectral responsivity measurement
11 6 Apparatus
6.1 General
12 Figures
Figure 1 – Example block diagram of a differential spectral responsivity measuring instrument using a continuous light source and a grating monochromator
13 6.2 Monochromatic light source
Figure 2 – Example block diagram of a differential spectral responsivity measuring instrument using a continuous light source and bandpass filters
14 6.3 PV device holder and temperature control
6.4 PV device contacts
6.5 Bias light
6.6 DC measurements
15 6.7 AC measurements in the presence of bias light
6.8 Reference device
7 Measurement of spectral responsivity using a constant light source
7.1 General method with a grating monochromator or filter wheel
7.2 Measurement of the reference device for setup calibration
16 7.3 Measurement of the device under test
17 7.4 Calculation of spectral responsivity
18 7.5 Simplifications
8 Measurement of spectral responsivity under pulsed light
8.1 Additional apparatus
19 8.2 Test procedure
9 Measurements of series-connected modules
9.1 General
9.2 Additional apparatus
9.3 Test procedure
Figure 3 – Example block diagram of a spectral responsivity measuring instrument using a pulsed light source and bandpass filters
20 Figure 4 – Example of the measurement setup for the differential spectral responsivity measurement of a target cell in a PV module, where the supplemental bias light is applied on all the cells in the module other than the target cell
21 Figure 5 – Example of the measurement setup for the differential spectral responsivity measurement of a target cell in a PV module, where the supplemental bias light is applied on all the cells in a string of the module other than the target cell
Figure 6 – Determination of the bias voltage Vb to set the voltage across the target cell to the short-circuit condition (see 9.3)
22 9.4 Calculation of spectral responsivity
10 Report

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BS EN 60904-8:2014
$142.49