CN204068865U - For demarcating comprehensive spectral response measuring system of reference solar battery sheet and monochromatic spectrum calibration system comprehensively - Google Patents
For demarcating comprehensive spectral response measuring system of reference solar battery sheet and monochromatic spectrum calibration system comprehensively Download PDFInfo
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- CN204068865U CN204068865U CN201320740782.3U CN201320740782U CN204068865U CN 204068865 U CN204068865 U CN 204068865U CN 201320740782 U CN201320740782 U CN 201320740782U CN 204068865 U CN204068865 U CN 204068865U
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- 238000001228 spectrum Methods 0.000 title claims abstract description 55
- 230000003595 spectral effect Effects 0.000 title claims abstract description 54
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 229910052724 xenon Inorganic materials 0.000 claims description 9
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 6
- 208000031872 Body Remains Diseases 0.000 claims description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 210000004027 cell Anatomy 0.000 description 96
- 238000005259 measurement Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 17
- 238000012937 correction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002354 daily effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model provides a kind of comprehensive spectrum calibration system of comprehensive spectral response measuring system and monochrome for demarcating reference solar battery sheet, wherein said comprehensive spectral response measuring system comprises light source, chopper, monochromator, condenser, light uniforming device, optical frames, bias light source, cell piece, temperature control testboard, current amplifier, lock-in amplifier, described light source sends the light of continuous spectrum, successively through described chopper, monochromator, condenser, light uniforming device, and optical frames impinges upon on described cell piece, described bias light source sends bias lighting and impinges upon on described cell piece, described cell piece is placed on described temperature control testboard, described cell piece successively with described current amplifier, lock-in amplifier connects.Accurately, any production line cell piece out can be used for making reference battery sheet in the caliberating device calibration that the utility model provides, and not by the impact of the spectral mismatch characteristic of simulator.
Description
Technical field
The utility model relates to solar battery sheet fields of measurement, particularly a kind of comprehensive spectrum calibration system of comprehensive spectral response measuring system and monochrome for demarcating reference solar battery sheet.
Background technology
Current battery sheet manufacturing enterprise carries out method that cell piece copies and flow process is:
2.1 select the cell piece of a collection of high-quality from production line, after the sorting of sorting-aging-again, send one to two cell piece and go German solar energy research to demarcate;
2.2 German solar energy research institutes, through a set of Measurement and Computation, provide this cell piece short circuit current Isc of (AM1.5G spectrum, the illuminance of 1000W/m2 and cell piece temperature 25 degree) under standard test condition.Complete demarcation, the cell piece returned is exactly secondary reference battery sheet;
The 2.3 factories secondary reference battery sheet received, with demarcating the short circuit current Isc that certificate provides, regulates the light intensity of simulator, makes cell piece actual short circuit current produced under this light-intensity conditions equal Isc numerical value on certificate.It is generally acknowledged that this simulator has been demarcated: the light intensity of 1000W/m2.
Under being placed on this simulator calibrated with a collection of cell piece after the sorting of sorting-aging-again before 2.4.Measure respective short circuit current.These cell pieces being aware of short circuit current are exactly the routine use reference battery sheet of factory.
Production line is mail to these reference battery sheets used in everyday again in 2.5 factories, adopts its short circuit current to demarcate the light intensity of its simulator on a production line.
2.6 when factory starts to produce new product cell piece, or has spent cycle regular hour, just adopts same procedure, repeats step 2.1 to 2.6.
Above method and step can be adopted to carry out, and precondition that reference battery sheet copies is: those remaining cell pieces and be sent to the cell piece that Germany demarcates and have identical spectral response after the sorting of sorting-aging-again.Or the solar simulator being used for copying reference battery sheet has the spectrum of the AM1.5G of 100% coupling.
With the capacity of equipment of current factory, have the ability to sub-elect the cell piece with close short circuit current, but the cell piece with same spectra response can't be sub-elected.The actual spectrum response of measuring the full wafer of cell piece needs the spectral response measurement system of full hot spot.
There is the solar simulator mated with AM1.5G spectrum 100% unrealistic especially.Enterprise with good conditionsi perhaps can the less solar simulator of the very expensive mismatch of purchasing price.
Screen from a certain bar production line with this, the cell piece of approximate identical short circuit current goes the precondition of the simulator calibrated on other production line to be: the simulator on these two production lines has identical spectral mismatch characteristic.Or these two production lines produce the cell piece with same spectra response characteristic.
The spectrum of solar simulator is very large by the aging effects of lamp.The spectrum of the light fixture adularescent of new installation, along with the service time of lamp increases, the color of light starts to warm, and infrared spectrum is in increase.Optics, the aging meeting of plated film of such as reflective mirror causes spectroscopic studying.So the solar simulator on different production line has different spectral mismatch characteristics mostly.
The spectral response of the cell piece that same different production line is produced may differ greatly.It is subject to the Si wafer quality of supplied materials, technology controlling and process level, the impact of the conditions such as equipment is new and old.So the reference battery sheet accuracy that factory adopts current method to copy out depends on the consistency quality of solar simulator spectral mismatch characteristic and the conforming quality of cell piece spectral response.It can bring very large error to the measurement sorting of the cell piece of some production line or certain model.
Utility model content
In order to solve the problem, the utility model provides a kind of comprehensive spectral response measuring system for demarcating with reference to solar battery sheet, described comprehensive spectral response measuring system comprises light source, chopper, monochromator, condenser, light uniforming device, optical frames, bias light source, cell piece, temperature control testboard, current amplifier, lock-in amplifier, described light source sends the light of continuous spectrum, successively through described chopper, monochromator, condenser, light uniforming device, and optical frames impinges upon on described cell piece, described bias light source sends bias lighting and impinges upon on described cell piece, described cell piece is placed on described temperature control testboard, described cell piece successively with described current amplifier, lock-in amplifier connects.
Preferably, described light source sends the wave-length coverage of light is 300nm to 1200nm.
Preferably, described temperature control platform ensures that the temperature of cell piece body remains on the standard test condition of 25 degree.
A kind of comprehensive spectrum calibration system of monochrome for demarcating with reference to solar battery sheet, it comprises light source, chopper, light uniforming device, bandpass filter, reflective mirror, optical frames, bias light source, cell piece temperature control testboard, current amplifier and lock-in amplifier, the light that described light source sends is radiated on described cell piece after described chopper, light uniforming device, bandpass filter, reflective mirror, optical frames, described cell piece is located on described temperature control testboard, and described cell piece is connected with described current amplifier, lock-in amplifier successively.
Preferably, described light source can be the Xenon/ xenon lamp having very EO-1 hyperion power at ultraviolet light and visible ray, or the Hg/ mercury lamp of spectrum-stable.
Preferably, described light source obtains a bandwidth by described bandpass filter is even monochromatic light between 5nm to 50nm.
The comprehensive spectral response measuring system for demarcating reference solar battery sheet that the utility model provides, the wave-length coverage that its light source adopted sends light is 300nm to 1200nm; Measure hot spot and be greater than cell piece to be calibrated, the uniformity measuring hot spot light intensity is better than 10%;
The comprehensive spectrum calibration system of monochrome for demarcating reference solar battery sheet that the utility model provides, it is even monochromatic light between 5nm to 50nm that the bandpass filter adopted obtains a bandwidth, its monochromatic hot spot is greater than cell piece to be calibrated, and the uniformity of monochromatic hot spot light intensity is better than 2%.
Certainly, implement arbitrary product of the present utility model might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
The scaling method flow chart of the reference solar battery sheet that Fig. 1 provides for the utility model embodiment;
Comprehensive spectral response measuring system composition schematic diagram that Fig. 2 provides for the utility model embodiment;
Monochrome comprehensive spectrum calibration system composition schematic diagram that Fig. 3 provides for the utility model embodiment;
The one-level reference battery sheet schematic diagram that Fig. 4 provides for the utility model embodiment;
The one-level reference battery sheet 4X4 measurement point schematic diagram that Fig. 5 provides for the utility model embodiment;
The one-level reference battery sheet 5X5 measurement point schematic diagram that Fig. 6 provides for the utility model embodiment;
The secondary reference battery sheet schematic diagram that Fig. 7 provides for the utility model embodiment.
Embodiment
Terminological interpretation:
One-level reference battery sheet: be a kind of standard solar cells, accurately calibrate: at light intensity 1000W/m2, AM1.5G spectrum, the short circuit current under temperature 25 degree of conditions.It is by secondary standard instrument, such as standard transducer, standard spectrum radiometer, by special flow process and equipment calibration out.It is usually by national measurement institute, or relevant national structure's keeping.It, current had technical, farthest ensures to have high long-time stability and high duplicate measurements precision.The effective area of battery is generally: 20mmx20mm.
Secondary reference battery sheet: be also a kind of standard solar cells, for daily use, such as natural daylight, the calibration of simulator light intensity.It not necessarily adopts the technology identical with making primary standard cell piece, equipment and step, and it can, by doing regular comparison with one-level reference battery sheet, be made every effort to reach similar long-time stability, accuracy and repeatability.The size of the effective area of battery normally cell piece, 5 cun: 125mmx125mm, 6 cun: 156mmx156mm.
Routine use reference battery sheet: copy from one-level or secondary reference battery sheet, for daily such as natural daylight, simulator light intensity is calibrated.Cell piece factory produces the normally this kind of routine use reference battery sheet that line adopts.
AM1.5G solar spectral: for the ease of assessment, more various solar cell, the performance of assembly, photovoltaic industry adopts a set of spectrum being referred to as AM1.5G, as common standard.Standard in International Electrotechnical Commission: IEC60904-3 has specified in more detail.It also can from the SMARTS software simulation of american energy laboratory (NERL) out.It is actual is a theoretical values, and solar spectrum and the AM1.5G spectrum of every country reality are incomplete same.
Solar simulator: be the device that a kind of simulation has the sunlight of AM1.5G spectrum.It adopts xenon lamp usually, and quartz lamp or LED are light source, adopts filter that spectrum is adjusted to and is similar to AM1.5G.The standard of International Electrotechnical Commission: IEC60904-9 has detailed requirement to simulator.The mismatch for AM1.5G spectrum of A level simulator is ± 25%.
Standard test condition: the standard IEC 60904-1 of International Electrotechnical Commission specifies: the conversion efficiency of assessment cell piece must meet three test conditions: AM1.5G spectrum, the light intensity of 1000W/m2 and the body temperature of cell piece: 25 DEG C. reference battery sheet is just used to calibrate simulator, reaches the light intensity of 1000W/m2.
The spectral response of solar cell: for the solar cell taking silicon as material, it can be converted to electric current the light of spectrum from 300nm to 1100nm.Different materials, its conversion efficiency of different quality is different.Express with formula:
SR(λi)＝Isc(λi)/Pin(λi)
SR (λ i): be the spectral response of solar cell under spectrum lambda i; Unit: ampere/watt
Isc (λ i): be the short circuit current of solar cell under spectrum lambda i; Unit: ampere
Pin (λ i): for being irradiated to the energy of the spectrum lambda i of solar cell surface, unit: W/m2nm-1
Cell piece short circuit current: two terminal voltages of cell piece are under zero voltage condition, the electric current that cell piece generates by illumination.Its power that is usual and incident light is directly proportional.Therefore, the short circuit current of cell piece after calibration can be used for calibrating the luminous power of simulator, and exposure intensity.
Theoretical foundation of the present utility model is: the spectral response according to solar cell defines: SR (λ i)=Isc (λ i)/Pin (λ i), so its short circuit current under AM1.5G solar energy spectral condition:
Isc(AM1.5G)＝SR(λi)x?Pin(AM1.5G)；
If we can measure the spectral response accurately of this cell piece, we just can from above formula, calculates its short circuit current Isc (AM1.5G) under AM1.5G spectral conditions.The parameter value that the light intensity that Here it is demarcates solar simulator needs.
Execution mode
Present embodiments provide a kind of comprehensive spectral response measuring system for demarcating with reference to solar battery sheet, as shown in Figure 2, described comprehensive spectral response measuring system comprises light source 1, chopper 2, monochromator 3, condenser 4, light uniforming device 5, optical frames 6, bias light source 7, cell piece 8, temperature control testboard 9, current amplifier 10, lock-in amplifier 11, light source 1 sends the light of continuous spectrum, once through chopper 2, light uniforming device 3, bandpass filter 4, reflective mirror 5 and optical frames 6 impinge upon on cell piece 8, bias light source 7 sends bias lighting and impinges upon on cell piece 8, cell piece 8 is placed on temperature control testboard 9, cell piece 8 successively with current amplifier 10, lock-in amplifier 11 connects.
The present embodiment additionally provides a kind of comprehensive spectrum calibration system of monochrome for demarcating with reference to solar battery sheet, as shown in Figure 3, comprise light source 12, chopper 13, light uniforming device 14, bandpass filter 15, reflective mirror 16, optical frames 17, bias light source 18, cell piece 19, temperature control testboard 20, current amplifier 21 and lock-in amplifier 22, the light that light source 12 sends is through chopper 13, light uniforming device 14, bandpass filter 15, reflective mirror 16, be radiated on cell piece 19 after optical frames 17, cell piece 19 is located on temperature control testboard 20, cell piece 19 successively with current amplifier 21, lock-in amplifier 22 connects.
Because the inhomogeneities of polysilicon quality, and the other factors such as technology controlling and process, the current density that crystal silicon battery, particularly polycrystalline silicon battery plate produce on its face is heterogeneous.Total be exactly the function of the spectral response measuring system of whole of cell piece measure battery complete with spectral response, instead of the existing small light spot of factory is measured, the spectral response of the unilateral upper local of battery.
System specialization:
In fig. 2, light source provides the light having continuous spectrum for monochromator, and wavelength at least covers from 300nm to 1200nm. that it can be Xenon/ xenon source, also can be quartz lamp light source, or the two combines.
In fig. 2, the lock-in amplifier of chopper and measuring circuit coordinates, and is used for improving the signal to noise ratio of measuring-signal, and the alternating current that the direct current simultaneously bias lighting produced and measurement monochromatic light produce is separated.
In fig. 2, the even monochromatic hot spot after light uniforming device and optical frames needs to cover whole cell piece, namely the size of even monochromatic hot spot: be greater than 160mmx160mm;
In fig. 2, the effect of bias lighting is the electric current promoting cell piece, makes cell piece be operated in the linear zone of electric current-light intensity;
In fig. 2, temperature control platform can ensure that the temperature of cell piece body remains on the standard test condition of 25 degree.Temperature control can be semiconductor peltier refrigerator, also can be water-cooled refrigerator.
In figure 3, light source can be the Xenon/ xenon lamp having very EO-1 hyperion power at UV and visible ray, or the Hg/ mercury lamp of spectrum-stable;
In figure 3, the effect of bandpass filter is that on cell piece, obtain a bandwidth be even monochromatic light between 5nm to 50nm to scaling system.
Monochromatic spectrum scaling system as shown in Figure 3 can produce stronger than above-mentioned continuous spectroscopic measurement system luminous power, evenly monochromatic light.By changing different bandpass filters, can accurately calibrater battery sheet in the response of special spectrum.By the response of these special spectrums, can revise further by the cell piece spectral response obtained from continuous spectroscopic measurement system before.
As shown in Figure 1, the utility model embodiment provides a kind of scaling method with reference to solar battery sheet, and it comprises the following steps:
(1) measure the complete spectrum power on the whole shadow surface of cell piece to be calibrated, then obtain the complete spectrum response of cell piece to be calibrated according to described complete spectrum power;
(2) measure the spectral power of this cell piece to be calibrated at a specific centre wavelength spectrum, then obtain the spectral response of this cell piece to be calibrated at this spectrum according to described special spectrum power;
(3) spectral response of this cell piece to be calibrated under this specific centre wavelength spectrum is obtained by this centre wavelength substitution step (1);
(4) compare the spectral response under this special spectrum that cell piece is obtained by step (2) and step (3), try to achieve a correction factor;
(5) special spectrum providing multiple centre wavelength variant, repeatedly repeats step (2) to (4), obtains multiple correction factor, try to achieve average correction factor;
(6) according to complete spectrum response and the average correction factor of cell piece to be calibrated, the short circuit current of described cell piece to be calibrated under standard spectrum is obtained.
In the device shown in Fig. 2, measure the comprehensively complete spectral response of cell piece, its flow process is:
1. the one-level reference battery sheet shown in Fig. 4 is placed in the cell piece position shown in Fig. 2, according to the distribution of the measurement point shown in Fig. 5, measures the short circuit current on 4x4=16 location point, Isc_st (λ i), i=1 ~ 16; λ=300nm to 1200nm;
2. calculate the spectral power be radiated on area 156x156: Pin (λ i)=A1/A0 × Σ (Isc_st (λ i)/SRo (λ i)), i=1 ~ 16; λ=300nm to 1200nm;
Wherein: A0 is the actual effective area of one-level reference battery sheet, unit mm
2, numerical value can be found from demarcation certificate.SRo (λ i) is the spectral response of one-level reference battery sheet;
A1＝156x156/16＝1521；
3. also can adopt the distribution of the measurement point of the 5x5=25 shown in Fig. 6, calculate the spectral power on irradiated area 156x156: Pin (λ)=A1/A0 × Σ (Isc_st (λ i)/SRo (λ i)), i=1 ~ 25; λ=300nm to 1200nm; A1=156x156/25=973.44;
4. measurement point be not limited to before two kinds of distributions, can be 6x6=36, or 7x7=49, even 8x8=64, this just needs the value changing i and A1;
5. the cell piece that the needs shown in Fig. 7 are demarcated is placed in above-mentioned equal area of having demarcated incident power.Measure its short circuit current: Isc_dut (λ), λ=300nm to 1200nm;
6. calculate the spectral response of this cell piece: SR_dut (λ)=Isc_dut (λ)/Pin (λ), λ=300nm to 1200nm;
On the device of Fig. 3, accurately calibrater battery sheet is in the response of following special spectrum:
λ=400nm, 610nm and 810nm; Its flow process is:
1. the one-level reference battery sheet shown in Fig. 4 is placed in the cell piece position shown in Fig. 3, according to the distribution of the measurement point shown in Fig. 5, measures the short circuit current on 4x4=16 location point, Isc_st (λ i), i=1 ~ 16; λ i=400nm;
2. calculate the spectral power be radiated on area 156x156: Pin (λ i)=A1/A0 × Σ (Isc_st (λ i)/SRo (λ i)), i=1 ~ 16; λ i=400nm;
Wherein: A0 is the actual effective area of one-level reference battery sheet, unit mm
2, numerical value can be found from demarcation certificate.SRo (λ i) is the spectral response of one-level reference battery sheet;
A1＝156x156/16＝1521；
3. also can adopt the distribution of the measurement point of the 5x5=25 shown in Fig. 6, calculate the spectral power on irradiated area 156x156: Pin (λ)=A1/A0 × Σ (Isc_st (λ i)/SRo (λ i)), i=1 ~ 25; λ i=400nm; A1=156x156/25=973.44;
4. measurement point be not limited to before two kinds of distributions, can be 6x6=36, or 7x7=49, or even: 8x8=64, this just changes the value of i and A1;
5. the cell piece that the needs shown in Fig. 7 are demarcated is placed in above-mentioned equal area of having demarcated incident power.Measure its short circuit current: Isc_dut (λ i), λ i=400nm;
6. calculate the response when lambda1-wavelength 400nm of this cell piece: SR2_dut (400nm)=Isc_dut (λ)/Pin (λ), λ=400nm;
7. from comprehensive continuous print spectral response curve SR_dut (λ) that step 1 obtains, find out its response at 400nm: SR1_dut (400nm), calculate correction factor: K1=SR2_dut (400nm)/SR1_dut (400nm)
8. repeat the above flow process of second step, obtain the correction factor of this cell piece at wavelength 610nm and 810nm
K2＝SR2_dut(610nm)/SR1_dut(610nm)
K3＝SR2_dut(810nm)/SR1_dut(810nm)
9. calculate average correction factor: K=(K1+K2+K3)/3
10. adopted certain band is led to centre wavelength and is not restricted to above 3 kinds, can be any wavelength from 300nm to 1200nm; 3 points are not limited yet, can 1,2 or 4,5,6 points.
11. wavelength bandwidths adopted also do not limit 10nm, can be any width of 2nm to 50nm;
12. calculate the short circuit current of this cell piece under AM1.5G standard spectrum:
Except adopting one-level reference battery sheet to calibrate incident optical power, also can adopt secondary reference battery sheet as shown in Figure 7, because the cell piece of its size and calibration is measure-alike, the flow process of calibration can be reduced to:
1. the secondary reference battery sheet shown in Fig. 7 is placed in the cell piece position shown in Fig. 2, measures its short circuit current, Isc_st (λ i), λ=300nm to 1200nm;
2. calculate and be radiated at its spectral power of whole: Pin (λ i)=Isc_st (λ i)/SRo (λ i), λ=300nm to 1200nm; SRo (λ i) is the spectral response of secondary reference battery sheet;
3. the cell piece that the needs shown in Fig. 7 are demarcated is placed in above-mentioned same position of having demarcated incident power.Measure its short circuit current: Isc_dut (λ), λ=300nm to 1200nm;
4. calculate the spectral response of this cell piece: SR_dut (λ)=Isc_dut (λ)/Pin (λ), λ=300nm to 1200nm;
Second step is on the device of Fig. 3, and accurately calibrater battery sheet is in the response of following special spectrum:
λ=400nm, 610nm and 810nm; Its flow process is:
1. the secondary reference battery sheet shown in Fig. 7 is placed in the cell piece position shown in Fig. 3, measures its short circuit current, Isc_st (λ i), λ i=400nm;
2. calculate the spectral power be radiated at above it: Pin (λ i)=Isc_st (λ i)/SRo (λ i), λ i=400nm; SRo (λ i) is the spectral response of secondary reference battery sheet;
3. the cell piece that the needs shown in Fig. 7 are demarcated is placed on the above-mentioned position having demarcated incident power.Measure its short circuit current: Isc_dut (λ i), λ i=400nm;
4. calculate the response when lambda1-wavelength 400nm of this cell piece: SR2_dut (400nm)=Isc_dut (λ)/Pin (λ), λ=400nm;
5. from comprehensive continuous print spectral response curve SR_dut (λ) that step 1 obtains, find out its response at 400nm: SR1_dut (400nm), calculate correction factor: K1=SR2_dut (400nm)/SR1_dut (400nm)
6. repeat the above flow process of second step, obtain the correction factor of this cell piece at wavelength 610nm and 810nm
K2＝SR2_dut(610nm)/SR1_dut(610nm)
K3＝SR2_dut(810nm)/SR1_dut(810nm)
7. calculate average correction factor: K=(K1+K2+K3)/3
8. adopted certain band is led to centre wavelength and is not restricted to above 3 kinds, can be any wavelength from 300nm to 1200nm; 3 points are not limited yet, can 1,2 or 4,5,6 points.
9. the wavelength bandwidth adopted also does not limit 10nm, can be any width of 2nm to 50nm;
10. calculate the short circuit current of this cell piece under AM1.5G standard spectrum:
The standard cell sheet being copied out by secondary reference battery sheet, is referred to as operating reference cell piece.
Accurately, any production line cell piece out can be used for making reference battery sheet in the scaling method calibration that the utility model provides, and not by the impact of the spectral mismatch characteristic of simulator.
Above embodiment is only for illustrating content of the present utility model, and in addition to the embodiments described above, the utility model also has other execution mode, and all employings are equal to replacement or the technical scheme that formed of equivalent deformation mode all drops in protection range of the present utility model.
Claims (6)
1. one kind for demarcating the comprehensive spectral response measuring system with reference to solar battery sheet, it is characterized in that, described comprehensive spectral response measuring system comprises light source, chopper, monochromator, condenser, light uniforming device, optical frames, bias light source, cell piece, temperature control testboard, current amplifier, lock-in amplifier, described light source sends the light of continuous spectrum, successively through described chopper, monochromator, condenser, light uniforming device, and optical frames impinges upon on described cell piece, described bias light source sends bias lighting and impinges upon on described cell piece, described cell piece is placed on described temperature control testboard, described cell piece successively with described current amplifier, lock-in amplifier connects.
2., as claimed in claim 1 for demarcating the comprehensive spectral response measuring system with reference to solar battery sheet, it is characterized in that, the wave-length coverage that described light source sends light is 300nm to 1200nm.
3. as claimed in claim 1 for demarcating the comprehensive spectral response measuring system with reference to solar battery sheet, it is characterized in that, described temperature control platform ensures that the temperature of cell piece body remains on the standard test condition of 25 degree.
4. one kind for demarcating the comprehensive spectrum calibration system of monochrome with reference to solar battery sheet, it is characterized in that, comprise light source, chopper, light uniforming device, bandpass filter, reflective mirror, optical frames, bias light source, cell piece temperature control testboard, current amplifier and lock-in amplifier, the light that described light source sends is radiated on described cell piece after described chopper, light uniforming device, bandpass filter, reflective mirror, optical frames, described cell piece is located on described temperature control testboard, and described cell piece is connected with described current amplifier, lock-in amplifier successively.
5. as claimed in claim 4 for demarcating the comprehensive spectrum calibration system of monochrome with reference to solar battery sheet, it is characterized in that, described light source can be the Xenon/ xenon lamp having very EO-1 hyperion power at ultraviolet light and visible ray, or the Hg/ mercury lamp of spectrum-stable.
6. as claimed in claim 4 for demarcating the comprehensive spectrum calibration system of monochrome with reference to solar battery sheet, it is characterized in that, it is even monochromatic light between 5nm to 50nm that described light source obtains a bandwidth by described bandpass filter.
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Cited By (4)
| 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 |
| 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 |
| 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 |
| WO2023191718A3 (en) * | 2022-03-29 | 2023-11-02 | National University Of Singapore | Apparatus for characterization of photovoltaic modules |
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2013
- 2013-11-21 CN CN201320740782.3U patent/CN204068865U/en not_active Expired - Lifetime
Cited By (5)
| 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 |
| 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 |
| 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 |
| 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 |
| WO2023191718A3 (en) * | 2022-03-29 | 2023-11-02 | National University Of Singapore | Apparatus for characterization of photovoltaic modules |
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