The invention provides a device for measuring
solar battery performance curves, which comprises a monochromatic
light source device, a
shutter device, a
background light source device, a sample
cell, a
short circuit current conversion device, a
voltage measuring device and a control and calculation device, wherein the monochromatic
light source device is used for simultaneously providing two beams of same monochromatic light; the
shutter device is used for modulating the monochromatic light; the
background light source device is used for providing
background light irradiated on a battery to be measured; the sample
cell is used for placing the battery to be measured and a reference battery; the
short circuit current conversion device is used for converting
short circuit light currents of the reference battery and the battery to be measured into voltages and amplifying the voltages; the
voltage measuring device comprises a zero adjusting device and is used for carrying out zero adjustment on response of a sample to be measured to the background light so as to counteract the influence of an extracurrent
signal generated by
irradiation of the background light; and the control and calculation device is used for measuring, controlling and calculating the
solar battery performance curves of the battery to be measured. Due to the adoption of the device provided by the invention, an IPCE (monochromatic incident
photon-to-
electron conversion efficiency) curve and a current response curve of the
solar battery under different background light illumination conditions can be dynamically measured, the measuring accuracy can be improved, the measuring error is reduced, and the cost is reduced.