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Device and method for measuring solar battery performance curves

A technology for solar cells and measuring devices, applied in the directions of measuring devices, measuring electrical variables, measuring current/voltage, etc., can solve the problem of not having the current response characteristics of measuring solar cells, so as to reduce costs, improve accuracy, and avoid measurement errors. Effect

Active Publication Date: 2013-10-02
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0009] Finally, the existing solar cell measurement device does not have the function of measuring the current response characteristic of the solar cell, so a solar cell measurement device capable of measuring the current response curve of the solar cell is also needed

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  • Device and method for measuring solar battery performance curves
  • Device and method for measuring solar battery performance curves
  • Device and method for measuring solar battery performance curves

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Embodiment Construction

[0045] The patent application CN200810247541.9 proposed by the applicant of this case describes a solar cell IPCE curve measurement device and measurement method. The contents described in the patent application CN200810247541.9 are included in the present invention.

[0046] Such as figure 1 As shown, according to an embodiment of the present invention, a solar cell performance curve measurement device is provided, including: a monochromatic light source device, a background light source device, a shutter device, a temperature-controlled sample cell, a short-circuit current conversion device, and a voltage measurement devices and control and computing devices.

[0047] The monochromatic light source device includes a light source 1, a monochromator 2, a lens group 3 and a 1:1 beam splitter 4; the light source 1 generates a light beam, the monochromatic light is obtained through the monochromator 2, and then passes through the lens Group 3 is coupled to the 1:1 beam splitter...

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Abstract

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.

Description

technical field [0001] The invention relates to the application and testing field of semiconductor materials, in particular, the invention relates to a solar cell performance curve measuring device and a measuring method. Background technique [0002] Rational development and utilization of solar energy and development of solar cell industry are major issues for human beings to solve energy crisis and environmental pollution. The current response curve of the solar cell refers to the change curve of the short-circuit photocurrent of the battery increasing (attenuating) with time when the light is quickly added (removed). The solar cell IPCE (incident photon-to-electron conversion efficiency) curve is a parameter that characterizes the incident photon-to-electron conversion efficiency. Under a certain monochromatic light, IPCE is defined as the ratio between the number of electrons output to the external circuit and the total number of incident photons. ratio, its mathematic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/26G01R19/00H02S50/15
CPCY02E10/50
Inventor 孟庆波郭晓枝罗艳红李冬梅
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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