CN102621073A - Spectral response value measurement system and method for solar cell - Google Patents
Spectral response value measurement system and method for solar cell Download PDFInfo
- Publication number
- CN102621073A CN102621073A CN201210053866XA CN201210053866A CN102621073A CN 102621073 A CN102621073 A CN 102621073A CN 201210053866X A CN201210053866X A CN 201210053866XA CN 201210053866 A CN201210053866 A CN 201210053866A CN 102621073 A CN102621073 A CN 102621073A
- Authority
- CN
- China
- Prior art keywords
- solar cell
- travelling belt
- wavelength
- response value
- short
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The invention provides a spectral response value measurement system for a solar cell and a spectral response value measurement method. The system comprises a spectrum splitting mechanism and a measuring device; the method comprises the following steps: using the spectrum splitting mechanism to project a monochromatic light band split by a white light source to a conveyer belt, using the measuring device to calibrate wave lengths of the monochromatic light band at different positions of the conveyer belt, moving the solar cell, of which spectrum response value curve is known, on the conveyer belt, recording first short circuit current intensity of the solar cell measured at wave lengths of different positions of the conveyer belt, then moving a tested solar cell on the conveyer belt and recording second short circuit current intensity, and finally calculating to obtain the spectrum response value of the tested solar cell at the wave lengths of same positions of the conveyer belt by comparing the first short circuit current intensity and the second short circuit current intensity at the wave lengths of the same positions of the conveyer belt and by utilizing the known spectrum response value curve. Due to the spectral response value measurement system and the spectral response value measurement method, the spectrum response values of the solar cell can be measured online on the conveyer belt in a solar cell production line.
Description
Technical field
The present invention relates to the measuring technique of solar cell, relate in particular to a kind of spectral response value measuring system and method for solar cell.
Background technology
Research and development, application, production solar cell all must be tested Solar cell performance.Test to solar cell at present mainly comprises I-V characteristic test, spectral responsivity test, reflectance test and uniformity test etc.And estimate most important two indexs of solar cell properties is photoelectric transformation efficiency and quantum efficiency.Photoelectric transformation efficiency obtains through solar cell is carried out the I-V characteristic test, and quantum efficiency then is to obtain through carrying out the spectral responsivity test.The test of solar cell (photoelectric material) spectral response; Or the sub-efficient QE of weighing (Quantum Efficiency) test; Or electricity conversion IPCE (Monochromatic Incident Photon-to-Electron Conversion Efficiency) test etc.; In broad terms, measure the numerical value of photoelectric characteristic under different wave length illumination condition of solar cell (photoelectric material) exactly, so-called photoelectric characteristic comprises: photogenerated current, photoconduction etc.Quantum efficiency QE (Quantum Efficiency) and electricity conversion IPCE (Monochromatic Incident Photon-to-Electron Conversion Efficiency) are meant the ratio of solar cell (photoelectric material) electron-hole pair number that produces and the photon number that incides solar cell (photoelectric material) surface.Have only the I-V characteristic test to can be implemented in the line test at the manufacture of solar cells line at present.And quantum efficiency (QE) or spectral responsivity test can only be used for the off-line sampling observation because present existing measuring technology can't satisfy the demand of on-line testing.Present invention is directed to a kind of quick online spectral response measuring technology of producing the line application and development.
When shining solar cell respectively with the different monochromatic light of various wavelength; Because photon energy difference and solar cell can produce different short-circuit currents to the factors such as collection efficiency of reflection of light, absorption, photo-generated carrier under the identical condition of irradiance.With the ratio of measured short-circuit current density and irradiance is that the short-circuit current density that produced of unit irradiance and the funtcional relationship of wavelength are surveyed absolute spectral response, carries out normalized spectral response with the maximal value of spectral response and surveys relative spectral response.
Spectral response characteristic has comprised many important informations of solar cell, with test condition substantial connection is arranged again simultaneously.This standard code; When measuring the spectral response of solar cell with monochromatic light, generally all under the bias lighting irradiation of simulated solar, carry out the side amount; Utilize given sunlight spectral irradiance and the absolute spectral response data that correctly record according to the rules, can calculate the short-circuit current density of solar cell under the standard conditions:
Jsc(AMN)＝∫PAMN(λ)·Sa(λ)dλ
In the formula: PAMN (λ)---air quality is the solar spectrum irradiancy of N under the given standard conditions, W/m2 μ m; Sa (λ)---solar cell absolute spectral response, A/w; λ is a wavelength; Jsc (AMN) is the short-circuit current density of solar cell.
As shown in Figure 1, be prior art solar cell measurement of spectral response principle schematic.Earlier shine solar cell with bias lighting, with the normal operating conditions of analog solar battery, bias lighting intensity is adjustable with simulation different working condition; Shine solar panel respectively with the different monochromatic light of various wavelength again, since photon energy, the emission absorption characteristic, and the difference of the collection efficiency of photo-generated carrier etc. produces different short-circuit currents.Because bias lighting is that direct current signal and monochromatic light are by the AC signal of copped wave; Again through the alternating current-direct current piece-rate system; Just can measured monochromatic short-circuit current density and the ratio of irradiance, i.e. the short-circuit current density that produces of unit irradiance obtains relative spectral response with the funtcional relationship of wavelength.Standard cell through system's standard configuration just can obtain absolute spectral response through the pairing comparision test again.Bias lighting is different and different with the type of solar cell to the influence degree of spectral response.Through experiment proof bias lighting spectral response is not had the obviously solar cell of influence, can not be biased light during measurement.
As shown in Figure 2, be a kind of spectral response value measuring system synoptic diagram of prior art solar cell, wherein; 21---testing light source, 22---chopper, 23---the second order spectrum optical filter disappears; 24---monochromator, 25---solar cell, 26---current-to-voltage convertor; 27---lock-in amplifier, 28---computing machine, 29---bias light source.Light source exposes on the solar cell through output monochromatic light behind the adjustable monochromator splitting excessively after chopper is modulated.Another light source shines directly on the solar cell as bias lighting.The monochromatic light that rotating shutter or prism are selected the output different wave length is passed through in the polychromatic light beam split that monochromator is exported light source through diffraction grating or prism then.Monochromatic light and bias lighting shine the electric current that produces on the solar cell through current-to-voltage convertor, convert the short-circuit current of solar cell into voltage signal, get into lock-in amplifier then.After the modulating frequency of chopper, the signal that monochromatic light is produced amplifies solar cell is obtained in the back by computer-readable spectral response value to lock-in amplifier with frequency lock.But tested solar cell must be fixed on the specimen table top in test process, test speed is slower, can only realize off-line test.
As shown in Figure 3, be the spectral response value measuring system synoptic diagram of another kind of prior art solar cell, wherein; 31---bias light source, 32---testing light source, 33---optical filter wheel; 34---chopper, 35---solar cell, 36---current-to-voltage convertor; 37---lock-in amplifier, 38---computing machine.This scheme collection obtains monochromatic light after test light is filtered through the narrow-band spectrum optical filter that is fixed on the different centre wavelengths on the optical filter wheel, through rotating optical filter wheel the monochromatic light of different wave length is shone on the solar cell then.Monochromatic light and bias lighting shine the electric current that produces on the solar cell through current-to-voltage convertor, convert the short-circuit current of solar cell into voltage signal, get into lock-in amplifier then.After the modulating frequency of chopper, the signal that monochromatic light is produced amplifies solar cell is obtained in the back by computer-readable spectral response value to lock-in amplifier with frequency lock.But the spectral bandwidth of optical filter is limited, and the spectral resolution of test is lower.Identical with prior art described in Fig. 2, tested solar cell also must be fixed on the specimen table top in test process, and test speed is slower, can only realize off-line test.
Summary of the invention
The embodiment of the invention provides a kind of spectral response value measuring system and method for solar cell, with the spectral response value of on-line measurement solar cell on the travelling belt that is implemented in the manufacture of solar cells line, improves the testing efficiency of solar cell.
On the one hand, the embodiment of the invention provides a kind of spectral response value measuring system of solar cell, and the spectral response value measuring system of said solar cell comprises:
The spectrum spectrophotometric device is used for the monochromatic light belt after the white light source beam split is projected travelling belt;
Measurement mechanism is used for demarcating the wavelength of said monochromatic light belt at said travelling belt diverse location according to the diverse location that said monochromatic light belt projects on the travelling belt; The solar cell of known spectra response curve is moved on said travelling belt; And the first short-circuit current intensity that measures in the wavelength of said travelling belt diverse location of the solar cell that writes down said known spectra response curve; Then tested solar cell is moved on said travelling belt equally; And write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location; Through said first short-circuit current intensity and the said second short-circuit current intensity of contrast, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position in the wavelength of said travelling belt same position.
Optional, in an embodiment of the present invention, said spectrum spectrophotometric device comprises: white light source, chopper, slit, plane mirror, sphere collimating mirror, plane diffraction grating, spherical reflector; Wherein, White light source focuses on after the chopper modulation and gets into slit; Secondary color light through slit is transferred by plane mirror, and by shining plane diffraction grating behind the sphere collimating mirror collimation, polychromatic light carries out beam split by the different diffraction level is inferior with angle of diffraction with the light of different wave length behind the plane diffraction grating diffraction then; Spherical reflector projects travelling belt after collecting the first-order diffraction light after the beam split again, on travelling belt, forms one from right to left by the monochromatic light belt of short wavelength to the long wavelength.
Further, optional, in an embodiment of the present invention, said spectrum spectrophotometric device can also comprise the second order spectrum optical filter that disappears; This second order spectrum optical filter that disappears between spherical reflector and travelling belt, adopts the secondary short wavelength diffraction light of the doping of long wavelength's part after the plane diffraction grating beam split of the said monochromatic light belt of high-pass filter filtering.
Further; Optional; In an embodiment of the present invention; Said measurement mechanism can comprise: mask plate, bias light source, test probe, photoelectric sensor, current-to-voltage convertor, lock-in amplifier, computing machine; Wherein, Said measurement mechanism detects the positional information of solar cell of said known spectra response curve through photoelectric sensor after, will be installed to the solar cell top of said known spectra response curve by the test module that mask plate, bias light source, test probe are formed, and on travelling belt, move with the solar cell of said known spectra response curve by automatic clamping device; Test probe is used to connect the electrode of the solar cell of said known spectra response curve; The solar cell of said known spectra response curve is drawn through the electric current that monochromatic light irradiation back produces, and the current signal after drawing passes through current-to-voltage convertor and converts this current signal into voltage signal, gets into lock-in amplifier then; Lock-in amplifier after the modulating frequency of chopper, amplifies back by the solar cell of COMPUTER CALCULATION said known spectra response curve corresponding first short-circuit current intensity with said voltage signal with frequency lock; Then said tested solar cell is moved on said travelling belt equally; And write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location; Through said first short-circuit current intensity and the said second short-circuit current intensity of computing machine contrast, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position in the wavelength of said travelling belt same position.
Optional; In an embodiment of the present invention; The spectral response value measuring system of said solar cell adopts the mode of a plurality of cascades that the multijunction solar cell of correspondence is measured, to obtain the spectral response value of each joint solar cell in the said multijunction solar cell.
On the other hand, the embodiment of the invention provides a kind of spectral response value measurement method of solar cell, and the spectral response value measurement method of said solar cell comprises:
Project on the travelling belt through the monochromatic light belt of spectrum spectrophotometric device after the white light source beam split;
Diverse location according to said monochromatic light belt projects on the travelling belt is demarcated the wavelength of said monochromatic light belt at said travelling belt diverse location;
The solar cell of known spectra response curve is moved on said travelling belt; And the first short-circuit current intensity that measures in the wavelength of said travelling belt diverse location of the solar cell that writes down said known spectra response curve; Then tested solar cell is moved on said travelling belt equally, and write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location;
Through said first short-circuit current intensity and the said second short-circuit current intensity of contrast, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position in the wavelength of said travelling belt same position.
Optional, in an embodiment of the present invention, said spectrum spectrophotometric device can comprise: white light source, chopper, slit, plane mirror, sphere collimating mirror, plane diffraction grating, spherical reflector; The white light source of said spectrum spectrophotometric device is focused on the entering slit after the chopper modulation; Secondary color light through slit is transferred by plane mirror; Then by shining plane diffraction grating behind the sphere collimating mirror collimation; Polychromatic light carries out beam split by the different diffraction level is inferior with angle of diffraction with the light of different wave length behind the plane diffraction grating diffraction; Spherical reflector projects travelling belt after collecting the first-order diffraction light after the beam split again, on travelling belt, forms one from right to left by the monochromatic light belt of short wavelength to the long wavelength.
Further; Optional; In an embodiment of the present invention; Through the second order spectrum optical filter that disappears of the said spectrum spectrophotometric device between spherical reflector and travelling belt, adopt the secondary short wavelength diffraction light of the doping of long wavelength's part after the plane diffraction grating beam split of the said monochromatic light belt of high-pass filter filtering.
Further; Optional; In an embodiment of the present invention; Said measurement mechanism comprises: mask plate, bias light source, test probe, photoelectric sensor, current-to-voltage convertor, lock-in amplifier, computing machine; Detect the positional information of solar cell of said known spectra response curve through photoelectric sensor after, will be installed to the solar cell top of said known spectra response curve by the test module that mask plate, bias light source, test probe are formed, and on travelling belt, move with the solar cell of said known spectra response curve by automatic clamping device; Test probe is used to connect the electrode of the solar cell of said known spectra response curve; The solar cell of said known spectra response curve is drawn through the electric current that monochromatic light irradiation back produces, and the current signal after drawing passes through current-to-voltage convertor and converts this current signal into voltage signal, gets into lock-in amplifier then; Lock-in amplifier after the modulating frequency of chopper, amplifies back by the solar cell of COMPUTER CALCULATION said known spectra response curve corresponding first short-circuit current intensity with said voltage signal with frequency lock; Then said tested solar cell is moved on said travelling belt equally; And write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location; Through said first short-circuit current intensity and the said second short-circuit current intensity of computing machine contrast, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position in the wavelength of said travelling belt same position.
Optional; In an embodiment of the present invention; Adopt the mode of the spectral response value measuring system cascade of a plurality of said solar cells that the multijunction solar cell of correspondence is measured, to obtain the spectral response value of each joint solar cell in the said multijunction solar cell.
Technique scheme has following beneficial effect: realized the spectral response value of on-line measurement solar cell on the travelling belt of manufacture of solar cells line, can greatly improve the testing efficiency of solar cell.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a prior art solar cell measurement of spectral response principle schematic;
Fig. 2 is a kind of spectral response value measuring system synoptic diagram of prior art solar cell;
Fig. 3 is the spectral response value measuring system synoptic diagram of another kind of prior art solar cell;
Fig. 4 is the spectral response value measuring system synoptic diagram of a kind of solar cell of the embodiment of the invention;
Fig. 5 is an embodiment of the invention test module synoptic diagram;
Fig. 6 is the structural representation of embodiment of the invention mask plate;
Fig. 7 measures the spectral response valve system cascade synoptic diagram of three-joint solar cell for the embodiment of the invention;
Fig. 8 is the spectral response value synoptic diagram of embodiment of the invention three-joint solar cell;
Fig. 9 is the spectral response value measurement method process flow diagram of a kind of solar cell of the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention provides a kind of spectral response value measuring system and method for solar cell, with the spectral response value of on-line measurement solar cell on the travelling belt that is implemented in the manufacture of solar cells line, improves the test speed of solar cell.
As shown in Figure 4; Spectral response value measuring system synoptic diagram for a kind of solar cell of the embodiment of the invention; The spectral response value measuring system of said solar cell comprises: the spectrum spectrophotometric device is used for the monochromatic light belt after the white light source beam split is projected travelling belt; Measurement mechanism is used for demarcating the wavelength of said monochromatic light belt at said travelling belt diverse location according to the diverse location that said monochromatic light belt projects on the travelling belt; The solar cell of known spectra response curve is moved on said travelling belt; And the first short-circuit current intensity that measures in the wavelength of said travelling belt diverse location of the solar cell that writes down said known spectra response curve; Then tested solar cell is moved on said travelling belt equally; And write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location; Through said first short-circuit current intensity and the said second short-circuit current intensity of contrast, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position in the wavelength of said travelling belt same position.
Said spectrum spectrophotometric device can comprise: white light source 401, chopper 402, slit 403, plane mirror 404, sphere collimating mirror 405, plane diffraction grating 406, spherical reflector 407; Wherein, White light source 401 focuses on after chopper 402 modulation and gets into slit 403; Secondary color light through slit 403 is transferred by plane mirror 404; Then by shining plane diffraction grating 406 behind sphere collimating mirror 405 collimations; Polychromatic light carries out beam split by the different diffraction level is inferior with angle of diffraction with the light of different wave length behind plane diffraction grating 406 diffraction, spherical reflector 407 projects travelling belt 409 after collecting the first-order diffraction light after the beam split again, on travelling belt 409, forms one from right to left by the monochromatic light belt of short wavelength to the long wavelength.
Further, optional, said spectrum spectrophotometric device can also comprise the second order spectrum optical filter 408 that disappears; This second order spectrum optical filter 408 that disappears between spherical reflector 407 and travelling belt 409, adopts the secondary short wavelength diffraction light of the doping of long wavelength's part after the plane diffraction grating beam split of the said monochromatic light belt of high-pass filter filtering.
Further; Optional; In an embodiment of the present invention; Said measurement mechanism can comprise: mask plate 410, bias light source 411, test probe 412, photoelectric sensor 413, current-to-voltage convertor 414, lock-in amplifier 415, computing machine 416; Wherein, Said measurement mechanism detects the positional information of solar cell of said known spectra response curve through photoelectric sensor 413 after; To be installed to by the test module (as shown in Figure 5, as to be embodiment of the invention test module synoptic diagram) that mask plate 410, bias light source 411, test probe 412 are formed by automatic clamping device above the solar cell of said known spectra response curve, and on travelling belt 409, move with the solar cell of said known spectra response curve; Test probe 412 is used to connect the electrode of the solar cell of said known spectra response curve; The solar cell of said known spectra response curve is drawn through the electric current that monochromatic light irradiation back produces, and the current signal after drawing passes through current-to-voltage convertor 414 and converts this current signal into voltage signal, gets into lock-in amplifier 415 then; Lock-in amplifier 415 after the modulating frequency of chopper 402, amplifies solar cell corresponding first short-circuit current intensity that back by computing machine 416 calculated said known spectra response curve with said voltage signal with frequency lock; Then said tested solar cell is moved on said travelling belt equally; And write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location; Through said first short-circuit current intensity and the said second short-circuit current intensity of computing machine 416 contrasts, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position in the wavelength of said travelling belt same position.
As shown in Figure 6; Structural representation for embodiment of the invention mask plate; The effect of mask plate 410 is to be used for controlling scope and the spectral width that shines the monochromatic light belt 418 on the solar cell, changes the width of slit 4101 and spectral bandwidth and the light intensity that highly can adjust monochromatic light belt 418.The solar cell less for area can not use mask plate 410.The effect of bias light source 411: 1, the duty of analog solar battery; 2, use the bias light source such as the LED of different wavelength range, realize spectral responsivity test for multijunction solar cell.Test probe 412 is used to connect the electrode of solar cell, and the electric current that solar cell produces after the monochromatic light irradiation is drawn.
Optional, the spectral response value measuring system of said solar cell can adopt the mode of a plurality of cascades that the multijunction solar cell of correspondence is measured, to obtain the spectral response value of each joint solar cell in the said multijunction solar cell.Measure for multijunction solar cell, can be through a plurality of measuring systems being carried out the spectral response value of each knot of cascade test.As measure three-joint solar cell, can with three covers measuring system order shown in Figure 4 be linked together (as shown in Figure 7, as to be the spectral response valve system cascade synoptic diagram that the embodiment of the invention is measured three-joint solar cell).Tested solar cell successively through three measuring systems, is measured the spectral response value (as shown in Figure 8, as to be the spectral response value synoptic diagram of embodiment of the invention three-joint solar cell) of each knot of three-joint solar cell respectively on travelling belt.The bias lighting that every suit measuring system is disposed is different.The bias lighting of the first knot measuring system adopts spectral range to be the infrared light supply (as before the bromine tungsten filament lamp light source, adding the high-pass filter of 700nm) greater than 700nm; The bias light source of the second knot measuring system adopts spectral range less than the cold light source (like white light LEDs) of 600nm and the spectral range infrared light supply (as before the bromine tungsten filament lamp light source, adding the high-pass filter of 900nm) greater than 900nm; The bias light source of the 3rd knot measuring system adopts the light source (as before bromine tungsten filament lamp light source add the low pass filter of 900nm) of spectral range less than 900nm.
Corresponding to said method embodiment, as shown in Figure 9, be the spectral response value measurement method process flow diagram of a kind of solar cell of the embodiment of the invention, the spectral response value measurement method of said solar cell comprises:
901, project on the travelling belt through the monochromatic light belt of spectrum spectrophotometric device after the white light source beam split;
902, the diverse location that projects on the travelling belt according to said monochromatic light belt is demarcated the wavelength of said monochromatic light belt at said travelling belt diverse location;
903, the solar cell with known spectra response curve moves on said travelling belt; And the first short-circuit current intensity that measures in the wavelength of said travelling belt diverse location of the solar cell that writes down said known spectra response curve; Then tested solar cell is moved on said travelling belt equally, and write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location;
904,, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position through the said first short-circuit current intensity and the said second short-circuit current intensity of contrast in the wavelength of said travelling belt same position.
Below in conjunction with Fig. 9 and Fig. 4 said method embodiment is elaborated:
Said spectrum spectrophotometric device can comprise: white light source 401, chopper 402, slit 403, plane mirror 404, sphere collimating mirror 405, plane diffraction grating 406, spherical reflector 407; The white light source 401 of said spectrum spectrophotometric device is focused on entering slit 403 after chopper 402 modulation; Secondary color light through slit 403 is transferred by plane mirror 404; Then by shining plane diffraction grating 406 behind sphere collimating mirror 405 collimations; Polychromatic light carries out beam split by the different diffraction level is inferior with angle of diffraction with the light of different wave length behind plane diffraction grating 406 diffraction; Spherical reflector 407 projects travelling belt 409 after collecting the first-order diffraction light after the beam split again, on travelling belt 409, forms one from right to left by the monochromatic light belt of short wavelength to the long wavelength.Further; Optional; Through the second order spectrum optical filter 408 that disappears of the said spectrum spectrophotometric device between spherical reflector 407 and travelling belt 409, adopt the secondary short wavelength diffraction light of the doping of long wavelength's part after plane diffraction grating 406 beam split of the said monochromatic light belt of high-pass filter filtering.
Further; Said measurement mechanism can comprise: mask plate 410, bias light source 411, test probe 412, photoelectric sensor 413, current-to-voltage convertor 414, lock-in amplifier 415, computing machine 416; Detect the positional information of solar cell of said known spectra response curve through photoelectric sensor 413 after; To be installed to the solar cell top of said known spectra response curve by the test module that mask plate 410, bias light source 411, test probe 412 are formed by automatic clamping device; And on travelling belt 409, move with the solar cell of said known spectra response curve; Test probe 412 is used to connect the electrode of the solar cell of said known spectra response curve; The solar cell of said known spectra response curve is drawn through the electric current of monochromatic light irradiation back generation; Current signal after drawing converts this current signal into voltage signal through current-to-voltage convertor 414; Get into lock-in amplifier 415 then, lock-in amplifier 415 after the modulating frequency of chopper 402, amplifies solar cell corresponding first short-circuit current intensity that back by computing machine 416 calculated said known spectra response curve with said voltage signal with frequency lock; Then said tested solar cell is moved on said travelling belt equally; And write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location; Through said first short-circuit current intensity and the said second short-circuit current intensity of computing machine 416 contrasts, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position in the wavelength of said travelling belt same position.
Optional, adopt the mode of the spectral response value measuring system cascade of a plurality of said solar cells that the multijunction solar cell of correspondence is measured, to obtain the spectral response value of each joint solar cell in the said multijunction solar cell.
The invention described above method or system embodiment technical scheme have following beneficial effect: realized the spectral response value of on-line measurement solar cell on the travelling belt of manufacture of solar cells line, can greatly improve the testing efficiency of solar cell.Reality of the present invention has possessed practicality on practical applications.Solved and on the manufacture of solar cells line, realized the technical barrier that spectral response value (or quantum efficiency) is measured.
The method described in the embodiment of the invention or the step of algorithm can directly embed hardware, the software module of processor execution or the two combination.Software module can be stored in the storage medium of other arbitrary form in RAM storer, flash memory, ROM storer, eprom memory, eeprom memory, register, hard disk, moveable magnetic disc, CD-ROM or this area.Exemplarily, storage medium can be connected with processor, so that processor can read information from storage medium, and can deposit write information to storage medium.Alternatively, storage medium can also be integrated in the processor.Processor and storage medium can be arranged among the ASIC, and ASIC can be arranged in the user terminal.Alternatively, processor and storage medium also can be arranged in the various parts in the user terminal.
Above-described embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely embodiment of the present invention; And be not used in qualification protection scope of the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the spectral response value measuring system of a solar cell is characterized in that, the spectral response value measuring system of said solar cell comprises:
The spectrum spectrophotometric device is used for the monochromatic light belt after the white light source beam split is projected travelling belt;
Measurement mechanism is used for demarcating the wavelength of said monochromatic light belt at said travelling belt diverse location according to the diverse location that said monochromatic light belt projects on the travelling belt; The solar cell of known spectra response curve is moved on said travelling belt; And the first short-circuit current intensity that measures in the wavelength of said travelling belt diverse location of the solar cell that writes down said known spectra response curve; Then tested solar cell is moved on said travelling belt equally; And write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location; Through said first short-circuit current intensity and the said second short-circuit current intensity of contrast, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position in the wavelength of said travelling belt same position.
2. the spectral response value measuring system of solar cell according to claim 1; It is characterized in that said spectrum spectrophotometric device comprises: white light source (401), chopper (402), slit (403), plane mirror (404), sphere collimating mirror (405), plane diffraction grating (406), spherical reflector (407);
Wherein, White light source (401) focuses on after chopper (402) modulation and gets into slit (403); Secondary color light through slit (403) is transferred by plane mirror (404); Then by shining plane diffraction grating (406) behind sphere collimating mirror (405) collimation; Polychromatic light carries out beam split by the different diffraction level is inferior with angle of diffraction with the light of different wave length behind plane diffraction grating (406) diffraction, spherical reflector (407) projects travelling belt (409) after collecting the first-order diffraction light after the beam split again, on travelling belt (409), forms one from right to left by the monochromatic light belt of short wavelength to the long wavelength.
3. like the spectral response value measuring system of the said solar cell of claim 2, it is characterized in that said spectrum spectrophotometric device also comprises the second order spectrum optical filter (408) that disappears;
The second order spectrum optical filter (408) that disappears is positioned between spherical reflector (407) and the travelling belt (409), adopts the secondary short wavelength diffraction light of the doping of long wavelength's part after plane diffraction grating (406) beam split of the said monochromatic light belt of high-pass filter filtering.
4. like the spectral response value measuring system of claim 2 or 3 said solar cells; It is characterized in that; Said measurement mechanism comprises: mask plate (410), bias light source (411), test probe (412), photoelectric sensor (413), current-to-voltage convertor (414), lock-in amplifier (415), computing machine (416)
Wherein, Said measurement mechanism detects the positional information of solar cell of said known spectra response curve through photoelectric sensor (413) after; To be installed to the solar cell top of said known spectra response curve by the test module that mask plate (410), bias light source (411), test probe (412) are formed by automatic clamping device; And go up motion at travelling belt (409) with the solar cell of said known spectra response curve; Test probe (412) is used to connect the electrode of the solar cell of said known spectra response curve; The solar cell of said known spectra response curve is drawn through the electric current of monochromatic light irradiation back generation; Short-circuit current signal after drawing converts this current signal into voltage signal through current-to-voltage convertor (414); Get into lock-in amplifier (415) then, lock-in amplifier (415) after the modulating frequency of chopper (402), amplifies solar cell corresponding first short-circuit current intensity that back by computing machine (416) calculated said known spectra response curve with said voltage signal with frequency lock; Then said tested solar cell is moved on said travelling belt equally; And write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location; Through said first short-circuit current intensity and the said second short-circuit current intensity of computing machine (416) contrast, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position in the wavelength of said travelling belt same position.
5. like the spectral response value measuring system of the said solar cell of claim 4; It is characterized in that; The spectral response value measuring system of said solar cell adopts the mode of a plurality of cascades that the multijunction solar cell of correspondence is measured, to obtain the spectral response value of each joint solar cell in the said multijunction solar cell.
6. the spectral response value measurement method of a solar cell is characterized in that, the spectral response value measurement method of said solar cell comprises:
Project on the travelling belt through the monochromatic light belt of spectrum spectrophotometric device after the white light source beam split;
Diverse location according to said monochromatic light belt projects on the travelling belt is demarcated the wavelength of said monochromatic light belt at said travelling belt diverse location;
The solar cell of known spectra response curve is moved on said travelling belt; And the first short-circuit current intensity that measures in the wavelength of said travelling belt diverse location of the solar cell that writes down said known spectra response curve; Then tested solar cell is moved on said travelling belt equally, and write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location;
Through said first short-circuit current intensity and the said second short-circuit current intensity of contrast, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position in the wavelength of said travelling belt same position.
7. like the spectral response value measurement method of the said solar cell of claim 6; It is characterized in that said spectrum spectrophotometric device comprises: white light source (401), chopper (402), slit (403), plane mirror (404), sphere collimating mirror (405), plane diffraction grating (406), spherical reflector (407);
The white light source (401) of said spectrum spectrophotometric device is focused on entering slit (403) after chopper (402) modulation; Secondary color light through slit (403) is transferred by plane mirror (404); Then by shining plane diffraction grating (406) behind sphere collimating mirror (405) collimation; Polychromatic light carries out beam split by the different diffraction level is inferior with angle of diffraction with the light of different wave length behind plane diffraction grating (406) diffraction; Spherical reflector (407) projects travelling belt (409) after collecting the first-order diffraction light after the beam split again, on travelling belt (409), forms one from right to left by the monochromatic light belt of short wavelength to the long wavelength.
8. like the spectral response value measurement method of the said solar cell of claim 7, it is characterized in that,
Through being positioned at the second order spectrum optical filter (408) that disappears of the said spectrum spectrophotometric device between spherical reflector (407) and the travelling belt (409), adopt the secondary short wavelength diffraction light of the doping of long wavelength's part after plane diffraction grating (406) beam split of the said monochromatic light belt of high-pass filter filtering.
9. like the spectral response value measurement method of claim 7 or 8 said solar cells; It is characterized in that; Said measurement mechanism comprises: mask plate (410), bias light source (411), test probe (412), photoelectric sensor (413), current-to-voltage convertor (414), lock-in amplifier (415), computing machine (416)
Detect the positional information of solar cell of said known spectra response curve through photoelectric sensor (413) after; To be installed to the solar cell top of said known spectra response curve by the test module that mask plate (410), bias light source (411), test probe (412) are formed by automatic clamping device; And go up motion at travelling belt (409) with the solar cell of said known spectra response curve; Test probe (412) is used to connect the electrode of the solar cell of said known spectra response curve; The solar cell of said known spectra response curve is drawn through the electric current of monochromatic light irradiation back generation; Current signal after drawing converts this current signal into voltage signal through current-to-voltage convertor (414); Get into lock-in amplifier (415) then; Lock-in amplifier (415) after the modulating frequency of chopper (402), amplifies solar cell corresponding first short-circuit current intensity that back by computing machine (416) calculated said known spectra response curve with said voltage signal with frequency lock;
Then said tested solar cell is moved on said travelling belt equally; And write down the second short-circuit current intensity that said tested solar cell measures in the wavelength of said travelling belt diverse location; Through said first short-circuit current intensity and the said second short-circuit current intensity of computing machine (416) contrast, and utilize said known spectra response curve calculation to obtain the spectral response value of said tested solar cell in the wavelength of said travelling belt same position in the wavelength of said travelling belt same position.
10. like the spectral response value measurement method of the said solar cell of claim 9, it is characterized in that,
Adopt the mode of the spectral response value measuring system cascade of a plurality of said solar cells that the multijunction solar cell of correspondence is measured, to obtain the spectral response value of each joint solar cell in the said multijunction solar cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210053866 CN102621073B (en) | 2012-03-02 | 2012-03-02 | Spectral response value measurement system and method for solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210053866 CN102621073B (en) | 2012-03-02 | 2012-03-02 | Spectral response value measurement system and method for solar cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102621073A true CN102621073A (en) | 2012-08-01 |
| CN102621073B CN102621073B (en) | 2013-08-14 |
Family
ID=46561119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210053866 Active CN102621073B (en) | 2012-03-02 | 2012-03-02 | Spectral response value measurement system and method for solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102621073B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633935A (en) * | 2013-11-21 | 2014-03-12 | 上海伟信新能源科技有限公司 | Calibrating method and device of reference solar cell piece |
| CN103633934A (en) * | 2012-08-21 | 2014-03-12 | 范强 | A space three-junction solar battery spectrum response test apparatus |
| CN104348414A (en) * | 2013-08-02 | 2015-02-11 | 株式会社Tne泰克 | Quantum efficiency measurement system for large scale solar cell module |
| CN104953949A (en) * | 2015-06-24 | 2015-09-30 | 陕西众森电能科技有限公司 | Electric performance test method of solar cells and solar cell modules |
| CN105181654A (en) * | 2015-07-22 | 2015-12-23 | 淮安红相光电科技有限公司 | Light transmittance detection device |
| TWI556570B (en) * | 2015-10-13 | 2016-11-01 | 財團法人工業技術研究院 | Measuring device for property of solar cell and measuring method using the same |
| US9866171B2 (en) | 2015-10-13 | 2018-01-09 | Industrial Technology Research Institute | Measuring device for property of photovoltaic device and measuring method using the same |
| CN109525196A (en) * | 2018-12-24 | 2019-03-26 | 中国科学院物理研究所 | Solar battery wide spectrum response test system and method |
| CN109787557A (en) * | 2017-11-11 | 2019-05-21 | 波音公司 | Use the high speed quantum efficiency spectrum of the multijunction cell of the hardware based on monochromator |
| CN113272636A (en) * | 2020-07-09 | 2021-08-17 | 深圳市海谱纳米光学科技有限公司 | System and method for testing spectral response speed of adjustable optical filter |
| CN114659759A (en) * | 2020-12-24 | 2022-06-24 | 盐城阿特斯阳光能源科技有限公司 | Spectral mismatch testing method of solar simulator |
| CN114942356A (en) * | 2022-05-07 | 2022-08-26 | 江苏英达富电子科技有限公司 | Sensitive response testing arrangement of electron device |
| CN117353660A (en) * | 2023-11-21 | 2024-01-05 | 北京卓立汉光仪器有限公司 | Multi-junction battery spectral responsivity test method and device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04276524A (en) * | 1991-03-04 | 1992-10-01 | Wakomu:Kk | Apparatus for measuring characteristic of solar battery |
| JP2004077309A (en) * | 2002-08-20 | 2004-03-11 | Atsushi Iga | Output evaluation method of solar cell, computer readable data record medium recording output evaluation program, and output evaluating apparatus |
| CN101266170A (en) * | 2008-04-24 | 2008-09-17 | 蚌埠市普乐新能源有限公司 | Method and apparatus for measuring multi-junction photovoltaic battery quantum efficiency |
| CN101299054A (en) * | 2008-05-23 | 2008-11-05 | 南京大学 | Measuring method of dye sensitization nano-film solar cell I-V characteristic and conversion efficiency characteristic |
| JP2008298471A (en) * | 2007-05-29 | 2008-12-11 | National Institute Of Advanced Industrial & Technology | Device for measuring spectral sensitivity characteristics of solar cell |
| CN101694510A (en) * | 2009-08-13 | 2010-04-14 | 苏州纳米技术与纳米仿生研究所 | Integration testing system of multi-junction solar cell |
| CN201514316U (en) * | 2009-08-13 | 2010-06-23 | 范强 | Solar battery spectral response tester |
| WO2012020542A1 (en) * | 2010-08-11 | 2012-02-16 | コニカミノルタセンシング株式会社 | Light source evaluation device and solar cell evaluation device |
-
2012
- 2012-03-02 CN CN 201210053866 patent/CN102621073B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04276524A (en) * | 1991-03-04 | 1992-10-01 | Wakomu:Kk | Apparatus for measuring characteristic of solar battery |
| JP2004077309A (en) * | 2002-08-20 | 2004-03-11 | Atsushi Iga | Output evaluation method of solar cell, computer readable data record medium recording output evaluation program, and output evaluating apparatus |
| JP2008298471A (en) * | 2007-05-29 | 2008-12-11 | National Institute Of Advanced Industrial & Technology | Device for measuring spectral sensitivity characteristics of solar cell |
| CN101266170A (en) * | 2008-04-24 | 2008-09-17 | 蚌埠市普乐新能源有限公司 | Method and apparatus for measuring multi-junction photovoltaic battery quantum efficiency |
| CN101299054A (en) * | 2008-05-23 | 2008-11-05 | 南京大学 | Measuring method of dye sensitization nano-film solar cell I-V characteristic and conversion efficiency characteristic |
| CN101694510A (en) * | 2009-08-13 | 2010-04-14 | 苏州纳米技术与纳米仿生研究所 | Integration testing system of multi-junction solar cell |
| CN201514316U (en) * | 2009-08-13 | 2010-06-23 | 范强 | Solar battery spectral response tester |
| WO2012020542A1 (en) * | 2010-08-11 | 2012-02-16 | コニカミノルタセンシング株式会社 | Light source evaluation device and solar cell evaluation device |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633934A (en) * | 2012-08-21 | 2014-03-12 | 范强 | A space three-junction solar battery spectrum response test apparatus |
| CN104348414A (en) * | 2013-08-02 | 2015-02-11 | 株式会社Tne泰克 | Quantum efficiency measurement system for large scale solar cell module |
| CN103633935B (en) * | 2013-11-21 | 2017-01-11 | 上海伟信新能源科技有限公司 | Calibrating method of reference solar cell piece |
| CN103633935A (en) * | 2013-11-21 | 2014-03-12 | 上海伟信新能源科技有限公司 | Calibrating method and device of reference solar cell piece |
| CN104953949A (en) * | 2015-06-24 | 2015-09-30 | 陕西众森电能科技有限公司 | Electric performance test method of solar cells and solar cell modules |
| CN105181654B (en) * | 2015-07-22 | 2019-01-11 | 淮安红相光电科技有限公司 | A kind of light transmittance detection device |
| CN105181654A (en) * | 2015-07-22 | 2015-12-23 | 淮安红相光电科技有限公司 | Light transmittance detection device |
| TWI556570B (en) * | 2015-10-13 | 2016-11-01 | 財團法人工業技術研究院 | Measuring device for property of solar cell and measuring method using the same |
| US9866171B2 (en) | 2015-10-13 | 2018-01-09 | Industrial Technology Research Institute | Measuring device for property of photovoltaic device and measuring method using the same |
| CN109787557A (en) * | 2017-11-11 | 2019-05-21 | 波音公司 | Use the high speed quantum efficiency spectrum of the multijunction cell of the hardware based on monochromator |
| CN109525196A (en) * | 2018-12-24 | 2019-03-26 | 中国科学院物理研究所 | Solar battery wide spectrum response test system and method |
| CN109525196B (en) * | 2018-12-24 | 2021-05-25 | 中国科学院物理研究所 | Solar cell wide-spectrum response test system and method |
| CN113272636A (en) * | 2020-07-09 | 2021-08-17 | 深圳市海谱纳米光学科技有限公司 | System and method for testing spectral response speed of adjustable optical filter |
| CN114659759A (en) * | 2020-12-24 | 2022-06-24 | 盐城阿特斯阳光能源科技有限公司 | Spectral mismatch testing method of solar simulator |
| CN114942356A (en) * | 2022-05-07 | 2022-08-26 | 江苏英达富电子科技有限公司 | Sensitive response testing arrangement of electron device |
| CN117353660A (en) * | 2023-11-21 | 2024-01-05 | 北京卓立汉光仪器有限公司 | Multi-junction battery spectral responsivity test method and device |
| CN117353660B (en) * | 2023-11-21 | 2024-05-28 | 北京卓立汉光仪器有限公司 | Multi-junction battery spectral responsivity test method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102621073B (en) | 2013-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102621073B (en) | Spectral response value measurement system and method for solar cell | |
| Fernández-García et al. | Equipment and methods for measuring reflectance of concentrating solar reflector materials | |
| Kirchartz et al. | Fundamental electrical characterization of thin‐film solar cells | |
| CN102033036B (en) | Light full-scattering type on-line granularity measurement device | |
| TW201205046A (en) | Sunlight simulator with detection device and solar cell detection device | |
| JP2012519276A (en) | High-speed quantum efficiency measurement system using solid-state light source | |
| CN108462469B (en) | Solar cell loss parameter measurement and analysis system and use method | |
| CN102507472B (en) | Electrolyte measurement method and electrolyte measurement device for vanadium redox flow battery | |
| CN102538968B (en) | Vacuum ultraviolet hemisphere reflectivity testing device | |
| KR20120096832A (en) | System of measuring solar cell and controlling method therefor | |
| CN103837520A (en) | Optic travelling wave cavity enhanced laser raman gas concentration detection device | |
| CN103293113B (en) | A kind of active light source type crop canopy reflection spectrum measurement device and method thereof | |
| CN102346231A (en) | Sunlight simulator provided with detection device and solar battery detection device | |
| CN102621078B (en) | Method and device for detecting charging state of vanadium redox battery | |
| Jung et al. | Development and characterization of solar simulator for solar cells | |
| CN103256981A (en) | Optical system of miniature cylindrical mirror multi-grating spectrum analysis | |
| CN201725011U (en) | Alternating Current (AC) measuring device of solar battery quantum efficiency | |
| CN106230379B (en) | A kind of detection device and detection method of multijunction solar cell chip | |
| CN104316989A (en) | Design method of indoor LED visible light communication holographic monochromatic reflector | |
| CN2826411Y (en) | Full-spectrum multi-passage steam generation atom fluorescence spectrum instrument | |
| CN204836087U (en) | Detection apparatus for solar energy module | |
| CN101893679A (en) | Direct-current measuring device for quantum efficiency of solar cell and using method thereof | |
| CN102609005B (en) | All-whether high-precision sun tracking control system | |
| CN101629804A (en) | Common-path laser interferometer | |
| CN202996149U (en) | Experimental device for measuring Planck constant with bromine tungsten lamp and monochromator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |