International Electrotechnical Commission
Glossary

ENspectral responsivity 
(Symbol: S(l)) (Unit: A W–1)

short-circuit electric current density generated by unit irradiance at a particular wavelength, plotted as a function of wavelength

NOTE 1 The term "response" instead of responsivity is commonly and colloquially used

NOTE 2 For thin-film PV devices, the spectral response measurement must be done under the voltage that is appropriate to the intended use of the spectral response data. This voltage condition therefore is to be specified with the data

a) spectral response mismatch error

error introduced in the testing of a PV device caused by the interaction of the mismatch between the spectral responses of the test specimen and the reference device, and the mismatch between the test spectrum and the reference spectrum

b) relative spectral response

(Symbol: S(l)rel) (Unit: dimensionless)

spectral response normalised to unity at wavelength of maximum response

It is calculated by:

S(l)rel = S(l) / S(l)max

c) relative spectral response under load

(Symbol: SV(l)rel) (Unit: dimensionless)

spectral response under load normalised to unity at wavelength of maximum response

It is calculated by:

SV(l)rel = SV(l) / SV(l)max

d) spectral response under load

(Symbol: Svl)

electric current density at a particular load voltage, generated by unit irradiance at a particular wavelength, plotted as a function of wavelength


TC/SC:82Terms     Info     Publications
Published in:IEC 61836, ed. 2.0 (2007-12) Terms     Info
Reference number:3.4.82

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