For adjusting solar simulator intensity
Reference PV Cells AK Series
Reference PV Cells AK Series are the result of collaborative research between Konica Minolta and Japan’s National Institute of Advanced Industrial Science and Technology.
Full lineup of 7 models with various relative spectral sensitivities allows you to select the perfect fit for your needs NEW
AK-100
AK-110
For 2-junction For 2-junction solar cells solar cells (a-Si: Top layer) (µc-Si: Bottom layer)
NEW
NEW
Conforms to JIS C 8904-2:2011
NEW
AK-120
AK-130
AK-140
AK-200
AK-300
For 3-junction solar cells (Top layer)
For 3-junction solar cells (Middle layer)
For 3-junction solar cells (Bottom layer)
For crystalline solar cells
For dye-sensitized (N719) solar cells
• Relative spectral responses of Reference PV Cells AK Series AK Series Relative Spectral Response [A/W]
[%]
Patent application number (Japan) 2010-131945
• Structure
AK-100 AK-110 AK-120 AK-130 AK-140 AK-200 AK-300
100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 300
400
500
600
700
800
900
1000
1100
Wavelength [nm]
* AK-200 is a crystalline Si solar cell with cover glass.
• AK-120, AK-130, and AK-140 are the world's first reference PV cells exclusively for 3-junction solar cells. • AK-300 is the world's first reference PV cell exclusively for dye-sensitized solar cells. Spectral sensitivity closely matches that of N-719 which is the typical dye used for dye-sensitized solar cells.
Peference PV Cells
Industry’s best spectral mismatch performance for high accuracy and high stability! Spectral mismatch suppressed to less than 1% Byemployingthehigh-accuracyopticalfiltertechnologycultivatedforourcolor-measuringinstruments,wehavesucceededingreatlyreducing spectralmismatch,whichisamajorproblemwithconventionalcells.Spectralmismatchcanbereducedto1%orless,evenwhenevaluatingsolar cell performance using JIS C-8942 Class C solar simulators. Relative spectral sensitivity of AK-100 100%
Relative spectral sensitivity of AK-110
Target AK-100
100%
Relative spectral sensitivity of AK-120
Target AK-110
80%
80%
80%
60%
60%
60%
40%
40%
40%
20%
20%
20%
0%
300
500
700 900 Wavelength (nm)
0%
1100
Relative spectral sensitivity of AK-130
500
700 900 Wavelength (nm)
1100
Relative spectral sensitivity of AK-140 Target AK-130
100%
300
0%
80%
60%
60%
60%
40%
40%
40%
20%
20%
20%
500
700 900 Wavelength (nm)
0%
1100
300
500
500
700 900 Wavelength (nm)
1100
700 900 Wavelength (nm)
Target AK-300
100%
80%
300
300
Relative spectral sensitivity of AK-300 Target AK-140
100%
80%
0%
Target AK-120
100%
1100
0%
300
500
700 900 Wavelength (nm)
1100
Free Spectral Mismatch Calculation Software available
300 301 302 303 304 305 Input spectral output 306 of solar 307simulator 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326
1
3
SS sample data
2 Input spectral sensitivity of measured sample (solar cell)
3.67 3.74 3.87 4.16 4.28 4.52 4.97 5.39 6.00 6.90 7.96 9.09 10.18 11.15 12.12 13.29 14.43 15.33 16.10 17.07 18.12 18.91 19.76 20.78 21.63 22.33 23.09
Calculation
Spectral mismatch calculation software Spectral mismatch error
wavelength
300～1100nm Normalization Wavelength=
Spectral mismaｔch 120%
xxx
Reference solar cell (AK series)
Measured cell
Reference solar (AM1.5G)
Solar simulator
120%
100%
100%
80%
80%
60%
60%
40%
40%
20%
20%
0% 300
400
500
600
700 〔nm〕
800
(nm)
Click nm
900
1000
0% 1100
300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326
SS
Cell
Emes(λ) Spectral distribution
Smes(λ) Spectral response
4
Click
5
Calculation results are displayed.
6 SS sample data 3.67 3.74 3.87 4.16 4.28 4.52 4.97 Select 5.39 6.00 6.90 7.96 9.09 10.18 11.15 12.12 13.29 14.43 15.33 16.10 17.07 18.12 18.91 19.76 20.78 21.63 22.33 23.09
Spectral mismatch error
300～1100nm
0.12%
Normalization Wavelength= Spectral mismaｔch 120%
reference PV cell
940
Reference solar cell (AK series)
Measured cell
Reference solar (AM1.5G)
Solar simulator
nm
400% 350%
100%
300% 80%
250%
60%
200% 150%
40%
100% 20%
Relative Spectral Irradiance Distribution
Cell Smes(λ) Spectral response
Relative Spectral Response
SS Emes(λ) Spectral distribution
Relative Spectral Irradiance Distribution
(nm)
Relative Spectral Response
wavelength
50%
0% 300
400
500
600
700
800
900
1000
0% 1100
〔nm〕
TheSpectralMismatchCalculationSoftwarecanbeusedtodeterminethespectralmismatchbetweenanAKSeriesReferencePVCellandanymanufactured solar cell. The software is available to download for free from our company's website. Tousethesoftwareinputthespectraloutputofthesolarsimulatorbeingused(➊)andtherelativespectralsensitivityvaluesforthesolarcellbeingmeasured (➋),clicktheCalculationbutton(➌),selectthedesiredAKcell(➍),andclickCalculate(➎),andthespectralmismatch(➏)willbecalculatedanddisplayed.
AK-Series
The graphs at right show the spectral mismatch between a-Si, μc- Si, EVA-encapsulated multi-crystalline, and dye-sensitized solar cells and the corresponding AK Series Reference PV Cell. Spectral mismatch is below 1% in all cases (when using solar simulators with Grade A spectral match under JIS C 8912), showing AK Series Reference PV Cells can be used for solar cells having a variety of relative spectral responses.
Improved durability against solar simulator light Isc variation
Standardreferencecellsusingopticalfilterstypicallyhavelowdurabilityagainstexposuretosolarsimulatorlight.Thiscauseschanges incharacteristicsduetotheeffectsoflightexposure(solarization) makingaccuratemeasurementsdifficult.AKSeriesReferencePV Cellshaveahighdurabilityagainstexposuretolight,greatlyreducing solarization and ensuring stability.
0% 0
Irradiation time for solar simulator light (hour) 50
150
100
-1% -2% AK-100
-3%
AK-110 Normal filter (BG7)
-4%
AK Series Isc variation*
Within ±1%
* Measured under Konica Minolta standard test method.
Improved reflection characteristics 2%
Isc variation
Errorinshort-circuitcurrent(Isc)duetomultiplereflectionisgreatly reduced.Improvementsintheopticalstructuresuppressmultiple reflectionsandreducethe1.3%errorofconventionalproductsto 0.0%.
Incident angle characteristics
AK Series Conventional product
1% 0% -1% -2% -3% -10
Error
-5 0 5 Incident angle (degrees)
10
Conventional product
AK Series
1.3 %
0.0 %
Calibration Cerificate A calibration certificate traceable to Japan’s National Institute of Advanced Industrial Science and Technology is available as an optional accessory.
Main specifications
NEW
Multi-layer type NEW
Two-layer type AK-100
AK-110
AK-120
AK-130
Dye-
sensitized type
Three-layer type AK-140
Crystalline type
AK-300
AK-200
Spectral mismatch error*1
Within ±1%
Short-circuit current (Isc) at 25° 1°C
40 mA or higher
Receptor area
20 x 20 mm
Aperture area
47 x 47 mm
FOV
160°
FF
65% or higher
Temperature sensor
PT-100
Connector for I-V measurement
XLR-type Cannon plug (JIS standard)
Connector for temperature measurement
LEMO connector (WPVS standard)
Operating temperature/humidity range
20 to 30°C, relative humidity 65% or less
Storage temperature/humidity range
15 to 30°C, relative humidity 30 to 75% with no condensation
Size (W) x (D) x (H)
120 x 90 x 21.5 mm
Weight
600 g
Short-circuit current
Short-circuit current values measured under Konica Minolta standard test method are listed in the included test report.
Standard accessories
Storage Case PV-A01, M4 screws (4pcs), Connector for I-V Measurement (male) PV-A02, Protection Plate PV-A03, Test Report, Inspection Report
– 10 mA or higher
15 mA or higher
10 mA or higher
100 mA or higher 10 x 10mm
20 x 20 mm
Optional calibration Calibration Certificate (AIST traceable) *1 Spectral mismatch error evaluated according to Konica Minolta standard test conditions.
< Dimensions >
< System Diagramm >
(Same for all models; Units: mm)
Solar simulator
120
Connector for I-V Measurement (male) PV-A02
Connector for I-V Measurement (female)
Connector for temperature measurement (LEMO connector)
62
Protection Plate PV-A03
62 13.2 （Cell surface position）
21.5
90
2000
M4 screws (4pcs)
Receptor (20 mm × 20 mm) (AK-300 only 10 mm × 10 mm)
Connector for I-V measurement (XLR-type Cannon plug)
Connector for temperature measurement
Connecting Cable
Bias power supply
Reference PV Cell AK Series [Optional] Calibration Certificate Temperature Control Stage
Recommended system: Temperature Control Stage for Reference Solar Cells PVC-1000 from Cell System Co., Ltd.
SAFETY PRECAUTIONS
Konica Minolta Sensing, Inc. Konica Minolta Sensing Americas, Inc.
Osaka, Japan New Jersey, U.S.A.
Konica Minolta Sensing Europe B.V.
European Headquarter/BENELUX German Office French Office UK Office Italian Office Belgian Office Swiss Office Nordic Office Polish Office SE Sales Division Beijing Branch Guangzhou Branch Chongqing Office Qingdao Office Wuhan Office Singapore Seoul Office
Konica Minolta (CHINA) Investment Ltd.
Konica Minolta Sensing Singapore Pte Ltd. Konica Minolta Sensing, Inc.
©2012 KONICA MINOLTA
Inspection Report
Peltier Controller
Temperature Control System for Reference Solar Cells
For correct use and for your safety, be sure to read the instruction manual before using the instrument.
Test Report
Storage Case PV-A01 Commercial product
• Konica Minolta, the Konica Minolta logo and symbol mark, and “Giving Shape to Ideas” are registered trademarks of Konica Minolta Holdings, Inc. • The specifications and appearance shown herein are subject to change without notice.
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