WO2017042248A1 - Procédé et appareil de caractérisation d'une cellule solaire - Google Patents

Procédé et appareil de caractérisation d'une cellule solaire Download PDF

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Publication number
WO2017042248A1
WO2017042248A1 PCT/EP2016/071133 EP2016071133W WO2017042248A1 WO 2017042248 A1 WO2017042248 A1 WO 2017042248A1 EP 2016071133 W EP2016071133 W EP 2016071133W WO 2017042248 A1 WO2017042248 A1 WO 2017042248A1
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WO
WIPO (PCT)
Prior art keywords
probe light
solar cell
modulated
signal
light
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Application number
PCT/EP2016/071133
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English (en)
Inventor
Frederik Christian Krebs
Original Assignee
Danmarks Tekniske Universitet
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Application filed by Danmarks Tekniske Universitet filed Critical Danmarks Tekniske Universitet
Publication of WO2017042248A1 publication Critical patent/WO2017042248A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
    • H02S50/15—Testing of PV devices, e.g. of PV modules or single PV cells using optical means, e.g. using electroluminescence
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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

Definitions

  • the present disclosure relates to a method for characterization (i.e. estimating variations) of a solar cell.
  • the disclosure further relates to an apparatus capable of characterizing a solar cell.
  • Printed organic photovoltaic (OPV) solar cells are polymer-based thin film solar cell. OPV solar are lightweight, flexible, inexpensive, highly tuneable and potentially disposable.
  • Light beam induced current is a non-destructive technique that focuses light onto a solar cell, thereby creating a photo-generated current that can be measured as a function of its position on the cell surface.
  • LBIC is a well-established 2D mapping technique for characterization of solar cells. By measuring the variation in the generated current, the areas corresponding to lower performance can be identified. The measured current values for each point are translated into a scale of different color hues representing level of performance.
  • LBIC mapping is especially relevant for roll-to- roll (R2R) printed OPV solar cells.
  • This type of photovoltaics is printed/coated on plastic substrates layer by layer which inevitably generates many types of defects such as layer thickness variations, misalignment, dewetting spots, delamination, particle contamination etc. Most of these defects are fairly benign giving rise to less performing areas whereas others are more serious creating electrical shorts that may even shunt a whole cell or create an open circuit in the defect area.
  • a major limitation of the LBIC technique is the time it takes to perform a
  • the light beam has to be repositioned to a number of spots/pixels to cover the whole area to characterize and record the current measured on each spot/pixel accordingly.
  • At a measuring speed of 100 ms per point this means a total of over 24 hours to complete the characterization.
  • conventional LBIC has severe limitations for testing/manufacturing purposes.
  • the light beam in LBIC may be affected by stray light or changes in background light, which can degrade the precision of the characterization.
  • the induced current is affected by noise from various sources, e.g.
  • the signal is weak, the signal to noise ratio (SNR) is typically consequently low, resulting in poor characterization of the solar cell.
  • SNR signal to noise ratio
  • the present disclosure relates to heterodyne LBIC i.e. a method for characterization of a solar cell, comprising the steps of: providing an optical probe light; modulating the optical probe light with a modulation frequency of between 100 kHz and 50 Mhz, thereby obtaining a modulated probe light; scanning the modulated probe light such that said modulated probe light is incident on at least a part of the surface of the solar cell, and such that the part of the solar cell exposed to the modulated probe light converts the modulated probe light to an electrical signal; and detecting and analyzing said electrical signal.
  • the electrical signal may then be used for estimating variations in the solar cell, thereby electrically characterizing the solar cell.
  • the method can be said to introduce technology in LBIC that is more typically used in radio transmission applications.
  • the optical probe light may be viewed as a carrier signal or carrier wave with an optical frequency capable of inducing a photovoltaic effect.
  • the modulated probe light is converted to an electrical signal.
  • the electrical signal comprises the modulation frequency of between 100 kHz and 50 MHz.
  • the modulation of the electrical signal is preferably substantially the same or similar as the modulation frequency but not in the same range as the frequency of the optical probe light. Therefore, the invention can be said to make use of the additional information that is carried by the modulated signal.
  • Modulating the optical probe light with a modulation frequency of between 100 kHz and 50 MHz and sweeping the modulated signal over the surface provides a way of performing LBIC much faster than traditional LBIC.
  • Heterodyning is a radio signal processing technique in which new frequencies are created by combining or mixing two frequencies into a new signal.
  • Superheterodyne refers to heterodyning of supersonic signals. Therefore, in one embodiment, the presently disclosed method can be considered to operate on radio frequency (RF) signals rather than only the optical probe light. The method also enables for measurement using many different modulation frequencies and/or wavelengths, which increases the capacity of the analysis.
  • RF radio frequency
  • Modulating the optical probe light which typically comprises one or several laser beams, with an RF signal for LBIC purposes presents a number of advantages compared to traditional LBIC (in which light is focused on one pixel, the current measured, the light source then moved to another pixel and so forth). Since the modulated probe light can be captured by the solar sell by using the solar cell as an antenna for RF signals, the signal can be analyzed in the frequency domain, for example by means of a spectrum analyzer. This is a new way of performing LBIC, which is significantly faster than traditional LBIC. By scanning the modulated probe light over the surface of the solar cell and analyze the RF modulated signal in the frequency domain (alternatively, the detected modulated signal can be oversampled) significantly faster characterization can be achieved.
  • the invention can be said to take advantage of the additional information that is carried by the modulated signal.
  • the modulated probe light is scanned over the surface of the solar cell by means of a rotating polygonal mirror, which allows for continuous sweeping rather than stopping and repositioning of the beam.
  • the combination of modulating the optical probe light with a modulation frequency of at least 100 kHz and sweeping the modulated signal over the surface of the solar cell provides a very efficient way of performing fast LBIC, in particular in combination with analysis of the detected signal in the frequency domain, possibly involving the step of Fourier-transforming the electrical signal.
  • the method enables for measurement using many different modulation frequencies and/or wavelengths, which increases the capacity of the analysis.
  • the presently disclosed method is significantly faster than traditional LBIC.
  • the modulated probe light is not sensitive to stray light in the same way as traditional LBIC and the signal is also generally less sensitive to noise.
  • the modulation frequency can be distributed over a bandwidth, e.g. having a frequency range of 800 Hz - 17 kHz.
  • the pixel resolution of the solar cell that is characterized is determined by the acquisition bandwidth and center frequency.
  • the method also provides flexibility in terms of resolution versus speed of the characterization.
  • increased bandwidth can also be used to improve the performance of a characterization in scenarios involving weak electrical signal.
  • a weak signal is more likely to have a lower signal to noise (SNR) ratio.
  • SNR signal to noise
  • bandwidth is the frequency range occupied by a modulated carrier wave. In relation to the presently disclosed method the bandwidth can be decreased to compensate for a weak signal with a compromise on resolution.
  • the present disclosure further relates to a solar cell characterization apparatus for characterization of a solar cell, comprising: a light source for generating an optical probe light; a modulation unit, configured to produce modulated probe light by modulating the optical probe light with a modulation frequency of at least 100 kHz; a light scanning unit for scanning the modulated probe light such that said modulated probe light is incident on at least a part of the surface of the solar cell; and a signal analyzer, configured to detect and analyze electrical signals produced by the solar cell as a response to exposure of the modulated probe light.
  • the signal analyzer is, in a preferred embodiment, an RF spectrum analyzer.
  • the present disclosure further relates to an apparatus as described above using the method of the presently disclosed invention.
  • Fig. 1 is a schematic drawing of one embodiment of the presently disclosed LBIC setup for characterization of a solar cell.
  • Fig. 2 shows another embodiment of an apparatus for characterization of a solar cell, operating on a module comprising a plurality of solar cells and a plurality of probe lights.
  • Fig. 3 shows an example of an organic solar cell.
  • Fig. 4 shows an example of LBIC mapping performed with the presently disclosed method for characterization of a solar cell.
  • Fig. 5 shows an example of an established LBIC signal corresponding to a modulated probe light sweeping over 8 solar cells.
  • the present disclosure relates to heterodyne LBIC i.e. a method for characterization of a solar cell, comprising the steps of: providing an optical probe light; modulating the optical probe light with a modulation frequency of at least 100 kHz, thereby obtaining a modulated probe light; scanning the modulated probe light such that said modulated probe light is incident on at least a part of the surface of the solar cell, and such that the part of the solar cell exposed to the modulated probe light converts the modulated probe light to an electrical signal; and detecting and analyzing said electrical signal.
  • the electrical signal may then be used for estimating variations in the solar cell, thereby electrically characterizing the solar cell.
  • the method can be said to introduce technology in LBIC that is more typically used in radio transmission applications.
  • Traditional LBIC involves moving a focused light source, typically a laser over the solar cell while measuring the current output directly.
  • the presently disclosed method enables the analysis of the received modulated probe light, or rather the converted electrical signal, in the frequency domain.
  • the inventor has realized that the concept of heterodyning can be applied on LBIC by modulating the optical probe light with a modulation frequency operating in a radio frequency range.
  • LBIC mapping is especially relevant for OPV solar cells, which often have defects which are benign giving rise to less performing areas whereas others are more serious creating electrical shorts that may even shunt a whole cell or create an open circuit in the defect area.
  • the presently disclosed method for performing characterization of a solar cell is significantly faster than traditional LBIC since it by modulating the probe light, preferably distributed over a bandwidth of 800 Hz - 17 kHz, and analyzing in the frequency domain can be said to carry additional information compared to an unmodulated signal.
  • the method turns out to be beneficial for manufacturing tests of solar cells and in particular roll-to-roll manufacturing of OPV, including tandem solar cells.
  • the solar cell can be said to act as an antenna capturing the RF signals.
  • the presently disclosed method allows for optical probe light modulated with a modulation frequency between many frequencies and bandwidths. The higher the modulation frequency, the higher the amount of data included in the signal.
  • the optical probe light is therefore modulated with a modulation frequency between 100 kHz and 50 MHz, or between 100 kHz and 30 MHz, or between 500 kHz and 30 MHz, or between 100 kHz and 10 MHz, or between 500 kHz and 30 MHz, or between 1 MHz and 10 MHz. Also, by using a range of frequencies increases the amount of carried data. Therefore, in one embodiment of the presently disclosed method for
  • the optical probe light is modulated with a modulation frequency distributed over a bandwidth of 100 kHz - 10 MHz, or a bandwidth of 100 kHz - 1 MHz, or a bandwidth of 800 Hz - 17 kHz, or a bandwidth of 100 Hz - 400 kHz, or a bandwidth of 200 Hz - 800 kHz, or a bandwidth of 400 Hz - 2 kHz, or a bandwidth of 400 Hz - 5 kHz, or a bandwidth of 400 Hz - 10 kHz.
  • Lower bandwidth can be also used to compensate for a weak signal.
  • a weak signal typically has a lower SNR ratio.
  • radio communication bandwidth is the frequency range occupied by a modulated carrier wave.
  • the signal carries more data, and the wider frequency range opens for more extensive filtering of undesired frequencies while maintaining relevant transmitted data in the signal.
  • the modulation of the optical probe light with a modulation frequency of at least 100 kHz is typically performed by means of a local oscillator and a mixer as can be seen in e.g. fig. 1 .
  • the modulated wave may be a complex wave and/or may be described as an oscillating wave having an amplitude A, a frequency f and a phase ⁇ P.
  • the received modulated signal can then be analyzed by a signal analyzer, preferably including a spectrum analyzer.
  • a signal analyzer preferably including a spectrum analyzer.
  • suitable signal analyzers are the Agilent MX/PX series or the R&S FSW series. However, simpler and more low cost solutions may also be used.
  • the received modulated signal is Fourier-transformed.
  • a common problem in reconstruction transmitted data is noise. Noise can corrupt a signal e.g. by
  • transformation may be used e.g. to filter noise.
  • the signal can be oversampled by the analyzer.
  • oversampling is usually referred to as the process of sampling with a sampling frequency higher than the Nyquist rate. Theoretically a bandwidth-limited signal can be perfectly reconstructed if sampled above the Nyquist rate, which is twice the highest frequency in the signal.
  • a radio receiver is an electronic device that receives radio waves and converts the information carried by them to a usable form. It is used with an antenna. The antenna intercepts electromagnetic waves and converts them to alternating currents which are applied to the receiver and the receiver extracts the desired information.
  • a radio receiver or signal analyzer is preferably used to extract the modulated frequency from the transmitted modulated light probe light through demodulation, wherein the solar cell acts as antenna.
  • a galvo motor is used in combination with a mirror for scanning the modulated probe light.
  • Galvo motors are limited-rotation DC motors that drive mirrors for laser- beam steering or scanning applications. Controlled motion can be achieved by means of an internal position detector that enables closed loop servo control of the motor.
  • a rotatable polygonal mirror is used for scanning the modulated probe light across the solar cell or across a number of solar cells constituting a module.
  • module refers to an assembly of solar cells - solar cells can be said to be the building blocks of photovoltaic modules.
  • the solar cells are typically connected in series.
  • the present method is inherently suited for analysis of modules of solar cells, and the combination of a polygonal mirror and the presently disclosed method is particularly useful for achieving fast, precise and flexible characterization of modules.
  • the optical probe light of the presently disclosed method for characterization of a solar cell has a wavelength between 150 nm and 30 ⁇ , or between 400 nm and 3 ⁇ , or between 400 nm and 750 nm, or between 750 nm and 3 ⁇ , or between 700 nm and 1500 nm, or between 700 and 1800 nm, or between 200 nm and 1200 nm, or between 400 nm and 1200 nm, such as 410 nm, or 405 nm, or 637 nm, or 785 nm, or 940 nm, or 1040 nm, or 1 100 nm, or 1 140 nm.
  • the invention is suitable for a broad range of light source, preferably lasers such as ultraviolet laser and/or visible laser and/or near-infrared laser and/or mid-infrared laser, such as blue laser and/or green laser and/or red laser and/or red laser.
  • lasers such as ultraviolet laser and/or visible laser and/or near-infrared laser and/or mid-infrared laser, such as blue laser and/or green laser and/or red laser and/or red laser.
  • the optical probe light may also comprise white light or any combination of lights of different wavelengths
  • Tandem cells are basically two solar cells with
  • the optical probe light comprises at least two different light beams, preferably focused on the same pixel.
  • the at least two light beams preferably have different wavelengths but could also be the same.
  • One aspect of the present method relates to the at least two probe lights being modulated with different frequencies. In this way the probe lights for the two junctions of the tandem cell operate not only with different wavelengths but also with different modulation radio frequencies, which can be used in the analysis stage for more clearly distinguishing the different junctions. More generally, the present disclosure relates to the generalization of the concept to cover additional beams, modulation frequencies and multijunction solar cells.
  • the present disclosure further relates to a solar cell characterization apparatus for characterization of a solar cell, comprising: a light source for generating an optical probe light; a modulation unit, configured to produce modulated probe light by modulating the optical probe light with a modulation frequency of at least 100 kHz; a light scanning unit for scanning the modulated probe light such that said modulated probe light is incident on at least a part of the surface of the solar cell; and a signal analyzer, configured to detect and analyze electrical signals produced by the solar cell as a response to exposure of the modulated probe light.
  • the apparatus comprises a local oscillator configured to generate the signal with which the probe light is modulated.
  • the signal analyzer is configured to analyze the electrical signals in the frequency domain as described above i.e. including noise filtering, possibly including using a Fourier transform etc., or, as an alternative, means for oversampling the received signal.
  • the signal analyzer may be e.g. a spectrum analyzer, signal analyzers such as the Agilent MX/PX series or the R&S FSW series, or simpler and cheaper solutions that are capable of analyzing the received signals, preferably in the frequency domain.
  • the local oscillator/signal generator is an RF signal generator and/or a signal generator configured to generate a modulation signal having a frequency between 100 kHz and 50 MHz, or between 100 kHz and 30 MHz, or between 500 kHz and 30 MHz, or between 100 kHz and 10 MHz, or between 500 kHz and 30 MHz, or between 1 MHz and 10 MHz
  • the local oscillator and mixer may be included in one circuit. Therefore, in one embodiment of the presently disclosed apparatus, the modulation unit comprises a mixing unit configured to mix the modulation signal with the optical probe light.
  • the light source for generating an optical probe light is preferably a laser configured to generate a laser beam.
  • a rotating mirror is to scan the modulated probe light across at least a part of the solar cell, and the position of the mirror determines the position of the modulated probe light on the solar cell.
  • the light beam sweeps over the solar cell or module of solar cells, preferably with a substantially constant scan velocity. If the mirror is a polygonal mirror, the sweeping repeats itself for every segment of the polygonal mirror.
  • the signal analyzer is connected to the solar cell through contactless capacitive coupling.
  • This type of connection is especially suited for fast roll-to-roll characterization of OPV.
  • the signal can be transferred by means of inductive coupling. Physical electrical contacts may be inconvenient for the process of e.g. roll-to-roll LBIC and therefore contactless LBIC constitutes an efficient way of transferring the captured signals to the signal analyzer.
  • Fig. 1 shows one embodiment of the presently disclosed LBIC setup for
  • the modulation is illustrated as the modulation unit 6 receiving the optical probe light and a modulation signal from a local oscillator 8, and generating a modulated probe light 3.
  • the modulated probe light 3 is scanned such that it is incident on the surface of a solar cell 1 1 .
  • a rotating polygonal mirror 10 is used for scanning the modulated probe light 3.
  • the detection and analysis of the received modulated signal is illustrated by positive and negative electrodes 14 and 13 connected to a signal analyzer 15, configured to detect and analyze electrical signals produced by the solar cell as a response to exposure of the modulated probe light.
  • This signal analyzer 15 may comprise e.g. a radio frequency signal analyzer.
  • Fig. 2 shows a similar setup where two modulated lights are combined into one combined modulated probe light 21 .
  • a first optical probe light 1 having a wavelength ⁇ is modulated in a first modulation unit 6, thereby generating a first modulated probe light 3.
  • a second optical probe light 2 having a wavelength ⁇ 2 is modulated in a second modulation unit 7, thereby generating a second modulated probe light 4.
  • These units may be included in a common unit, configured to perform all of the mentioned steps.
  • the first modulated probe light 3 and second modulated probe light 4 are then combined intro a combined modulated probe light 21 .
  • Both wavelength and modulation frequencies may be freely chosen, i.e. may be the same or different for the two modulated probe lights.
  • the analysis part of the receive signal includes means for analyzing the received signal as a complex waveform (IQ) 17, filtering any part of the spectrum 18, and a signal analyzer 15. These means for analyzing the received signal may form an integral unit.
  • IQ complex waveform
  • Fig. 3 shows a module 12 of solar cells 1 1 .
  • the solar cells 1 1 are serially connected to form a module 12 comprising a plurality of solar cells.
  • the solar cell module has a positive electrode 14 and a negative electrode 13.
  • Fig. 4 shows an example of LBIC mapping performed with the presently disclosed method for characterization of a solar cell. It shall be noted that 1 1 and 12 do not refer to a solar cell (1 1 ) and module of solar cells (12) directly - fig. 4 is an actual resulting picture of the characterization according to the presently disclosed method and not a direct photo or depicture of the module of solar cells. The less performing areas 19 are results of areas within the module of solar cells associated with defects on the solar cells.
  • Fig. 5 shows an example of an established LBIC signal corresponding to a modulated probe light sweeping over 8 solar cells using the presently disclosed method for characterization of a solar cell.
  • the diagram does not show the identification of the modulation frequency performed by a spectrum analyzer.
  • a method for characterization of a solar cell comprising the steps of:
  • the electrical signal is analyzed in the frequency domain.
  • the method according to any of the preceding items, wherein the electrical signal is Fourier-transformed.
  • the method according to any of the preceding items, wherein the modulation frequency is between 100 kHz and 50 MHz.
  • the method according to item 5, wherein the optical probe induces a photovoltaic effect.
  • the electrical signal comprises the modulation frequency of between 100 kHz and 50 MHz.
  • the method according to any of the preceding items, wherein the electrical signal is oversampled.
  • said optical probe light having a wavelength between 150 nm and 30 ⁇ , preferably between 400 nm and 3 ⁇ , more preferably between 400 nm and 750 nm, even more preferably between 750 nm and 3 ⁇ , most preferably between 700 nm and 1500 nm, such as 410 nm, or 405 nm, or 637 nm, or 785 nm, or 940 nm, or 1040 nm, or 1 100 nm, or 1 140 nm.
  • said optical probe light comprising a combination of lights of different wavelengths.
  • said optical probe light comprising at least two different light beams having different wavelengths, or at least three different light beams having different wavelengths.
  • said optical probe light comprising white light.
  • said optical probe light comprising at least one laser beam.
  • ultraviolet laser and/or visible laser and/or near-infrared laser and/or mid- infrared laser such as blue laser and/or green laser and/or red laser and/or red laser.
  • said optical probe light comprising at least two different light beams, said at least two different light beams modulated with different frequencies.
  • the optical probe light is modulated with a modulation frequency between 100 kHz and 30 MHz, preferably between 500 kHz and 30 MHz, more preferably between 100 kHz and 10 MHz, even more preferably between 500 kHz and 30 MHz, most preferably between 1 MHz and 10 MHz.
  • the optical probe light is modulated with a modulation frequency distributed over a bandwidth of 100 kHz - 10 MHz, preferably a bandwidth of 100 kHz - 1 MHz, more preferably a bandwidth of 800 Hz - 17 kHz, even more preferably a bandwidth of 100 Hz -
  • said electrical signal comprising at least one frequency determined by the modulation frequency.
  • modulating the optical probe light with a modulation comprises heterodyning.
  • modulating the optical probe light with a modulation comprises
  • a solar cell characterization apparatus for characterization of a solar cell
  • a modulation unit configured to produce modulated probe light
  • a light scanning unit for scanning the modulated probe light such that said modulated probe light is incident on at least a part of the surface of the solar cell;
  • a signal analyzer configured to detect and analyze electrical signals
  • the signal analyzer is configured to analyze the electrical signals in the frequency domain.
  • the light source is a laser configured to generate a laser beam.
  • said modulation unit comprising a signal generator configured to generate a modulation signal having a frequency between 100 kHz and 50 MHz, preferably between 100 kHz and 30 MHz, more preferably between 500 kHz and 30 MHz, even more preferably between 100 kHz and 10 MHz, even more preferably between 500 kHz and 30 MHz, most preferably between 1 MHz and 10 MHz.
  • the signal generator is a radio frequency signal generator.
  • said modulation unit comprising a mixing unit configured to mix the modulation signal with the optical probe light.
  • the light scanning unit is a laser scanner and/or a mirror configured for scanning the modulated probe light across at least a part of the solar cell.
  • the light scanning unit is a rotatable polygonal mirror.

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  • Photovoltaic Devices (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

L'invention concerne un procédé de caractérisation d'une cellule solaire, qui consiste à: utiliser une lumière de sonde optique; moduler la lumière de sonde optique avec une fréquence de modulation comprise entre 100 kHz et 50 MHz pour obtenir ainsi une lumière de sonde modulée; balayer la lumière de sonde modulée de sorte que ladite lumière de sonde modulée soit incidente sur au moins une partie de la surface de la cellule solaire, et de sorte que la partie de la cellule solaire exposée à la lumière de sonde modulée convertisse la lumière de sonde modulée en un signal électrique; détecter et analyser ledit signal électrique; et estimer les variations dans la cellule solaire, ce qui permet d'accomplir la caractérisation électrique de la cellule solaire. L'invention concerne également un appareil de caractérisation de cellule solaire, qui comprend: une source de lumière générant une lumière de sonde optique; une unité de modulation configurée pour produire une lumière de sonde modulée par modulation de la lumière de sonde optique avec une fréquence de modulation comprise entre 100 kHz et 0 MHz; une unité de balayage de lumière pour balayer la lumière de sonde modulée de sorte que ladite lumière de sonde modulée soit incidente sur au moins une partie de la surface de la cellule solaire; et un analyseur de signaux configuré pour détecter et analyser des signaux électriques produits par la cellule solaire en réponse à l'exposition de la lumière de sonde modulée.
PCT/EP2016/071133 2015-09-08 2016-09-08 Procédé et appareil de caractérisation d'une cellule solaire WO2017042248A1 (fr)

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EP15184224 2015-09-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018135123A1 (fr) * 2017-01-17 2018-07-26 学校法人帝京大学 Système et procédé de détermination d'erreur de module photovoltaïque
WO2022112069A1 (fr) * 2020-11-24 2022-06-02 Université D'aix-Marseille Dispositif de mesure de la qualité d'un composant photovoltaïque, procédé associé

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE10240060A1 (de) * 2002-08-30 2004-03-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Anordnung zur strahlungsinduzierten Bestimmung der lokalen Verteilung von Verlustströmen bzw. Verlustleistung in Halbleiterbauelementen
US20130314118A1 (en) * 2012-05-27 2013-11-28 Sae Magnetics (H.K.) Ltd. Testing method of a solar cell panel, and testing apparatus thereof
US20150015297A1 (en) * 2013-07-10 2015-01-15 Dainippon Screen Mfg. Co., Ltd. Photo device inspection apparatus and photo device inspection method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10240060A1 (de) * 2002-08-30 2004-03-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Anordnung zur strahlungsinduzierten Bestimmung der lokalen Verteilung von Verlustströmen bzw. Verlustleistung in Halbleiterbauelementen
US20130314118A1 (en) * 2012-05-27 2013-11-28 Sae Magnetics (H.K.) Ltd. Testing method of a solar cell panel, and testing apparatus thereof
US20150015297A1 (en) * 2013-07-10 2015-01-15 Dainippon Screen Mfg. Co., Ltd. Photo device inspection apparatus and photo device inspection method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018135123A1 (fr) * 2017-01-17 2018-07-26 学校法人帝京大学 Système et procédé de détermination d'erreur de module photovoltaïque
JPWO2018135123A1 (ja) * 2017-01-17 2019-07-25 学校法人帝京大学 太陽電池モジュールの異常判定システムおよび方法
WO2022112069A1 (fr) * 2020-11-24 2022-06-02 Université D'aix-Marseille Dispositif de mesure de la qualité d'un composant photovoltaïque, procédé associé

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