DE102010004868A1 - Device for inspection of solar cell, has two electrical separate contacts that are electrically connected with solar cell incorporating camera - Google Patents
Device for inspection of solar cell, has two electrical separate contacts that are electrically connected with solar cell incorporating camera Download PDFInfo
- Publication number
- DE102010004868A1 DE102010004868A1 DE201010004868 DE102010004868A DE102010004868A1 DE 102010004868 A1 DE102010004868 A1 DE 102010004868A1 DE 201010004868 DE201010004868 DE 201010004868 DE 102010004868 A DE102010004868 A DE 102010004868A DE 102010004868 A1 DE102010004868 A1 DE 102010004868A1
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- DE
- Germany
- Prior art keywords
- solar cell
- camera
- electrically connected
- inspection
- separate contacts
- 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.)
- Withdrawn
Links
- 238000007689 inspection Methods 0.000 title abstract description 5
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 238000005401 electroluminescence Methods 0.000 claims description 5
- 230000007547 defect Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- 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
Abstract
Description
Gebiet der ErfindungField of the invention
Die Erfindung betrifft eine Vorrichtung entsprechend dem Oberbegriff in Anspruch 1.The invention relates to a device according to the preamble in
Beschreibung des Standes der TechnikDescription of the Prior Art
Solarzellen
Deshalb ist es wünschenswert, diese Art von Defekten innerhalb der Produktion frühzeitig zu detektieren. Eine Möglichkeit dazu bietet die Elektrolumineszenz, bei der die Zelle mit Strom in Vorwärtsrichtung betrieben wird. Es wird dann mit einer Kamera ein Bild von der Zelle aufgenommen und entweder mit Hilfe einer Bildverarbeitungseinheit automatisch entschieden, ob die Zelle einen Defekt aufweist, oder das Bild einem Benutzer angezeigt.Therefore, it is desirable to detect these types of defects early in production. One possibility is electroluminescence, in which the cell is operated with forward current. It is then taken with a camera an image of the cell and either with the help of an image processing unit automatically determines whether the cell has a defect, or the image displayed to a user.
In
Die bisher bekannten Lösungen haben den Nachteil, dass die Detektion von Defekten zwischen den Stromschienen durch geringe Kontraste der Defekte erschwert wird, da hier der Strom von zwei Seiten an die Defekte herangeführt wird und nur über den elektrischen Widerstand der Leitungslänge der Finger die Stromdichte am Defekt reduziert wird.The previously known solutions have the disadvantage that the detection of defects between the busbars is complicated by small contrasts of the defects, since the current is introduced from two sides to the defects and only on the electrical resistance of the line length of the finger current density at the defect is reduced.
Aufgabe der Erfindung ist die Lösung dieses Problems, da die oben genannten Defekte Auswirkungen auf die Effizienz und auf die Stabilität der Solarelemente haben.The object of the invention is the solution of this problem, since the above-mentioned defects affect the efficiency and the stability of the solar elements.
Um die oben beschriebene Aufgabe zu erfüllen, enthält die Inspektionsvorrichtung mindestens zwei Kontaktierungseinheiten, die die Solarzelle mit mindestens zwei unterschiedlichen Spannungen und Strömen versorgen, und mindestens eine Kamera.To accomplish the above-described object, the inspection device includes at least two contacting units that provide the solar cell with at least two different voltages and currents, and at least one camera.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben.Embodiments of the invention are illustrated in the drawings and will be described in more detail below.
Es zeigenShow it
Die Inspektionsvorrichtung besteht aus zwei getrennt versorgten Kontaktierungen
Dann wird eine Stromversorgung eingeschaltet und es fließt ein Strom über eine Kontaktierung, eine Stromschiene auf der Oberseite, durch einen Teilbereich der Solarzelle und durch die Kontaktierung
Danach wird die eingeschaltete Stromversorgung ausgeschaltet und die zweite Stromversorgung wird eingeschaltet. Nun fließt der Strom über die andere Kontaktierung, die andere Stromschiene, durch einen anderen Teilbereich der Solarzelle und durch die Kontaktierung auf der Unterseite der Solarzelle. Aufgrund der Elektrolumineszenz leuchtet nun ein anderer Teilbereich der Solarzelle. Dieses Licht wird mit Hilfe der Kamera aufgenommen und das Bild wird ebenfalls in dem Computer weiterverarbeitet und angezeigt (siehe
In dem dargestellten Ausführungsbeispiel wurden zwei Netzteile verwendet. Die Erfindung kann aber bestimmungsgemäß auch mit einem Netzteil verwendet werden, bei dem die Umschaltung der Spannung und des Stroms, z. B. über Relais, erfolgt. Es ist ebenfalls naheliegend, ein drittes Bild aufzunehmen, bei dem beide Stromversorgungen eingeschaltet sind, und dieses dritte Bild ebenfalls dem Benutzer anzuzeigen (siehe
Die Kamera und die Bildverarbeitungseinheit können in einer bestimmungsgemäßen Abwandlung dieser Erfindung auch in einer Einheit zusammengefasst sein.The camera and the image processing unit can also be combined in one unit according to a specific modification of this invention.
Aufgrund der vorliegenden Beschreibung der Erfindung ist es offensichtlich, dass die Erfindung auf vielfältige Art und Weise abgewandelt werden kann. Derartige Abwandlungen sind nicht als Abweichung vom Schutzumfang der Erfindung zu verstehen. Alle für Fachleute auf dem Gebiet offensichtlichen Modifikationen liegen innerhalb des Schutzumfanges der nachfolgenden Ansprüche.Due to the present description of the invention, it is obvious that the invention can be modified in many ways. Such modifications are not to be understood as a departure from the scope of the invention. All modifications obvious to those skilled in the art are within the scope of the following claims.
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 112007001071 T5 [0004] DE 112007001071 T5 [0004]
Zitierte Nicht-PatentliteraturCited non-patent literature
- Kasemann et. al., „Luminescence imaging for the detection of shunts an silicon solar cells” Progress in Photovoltaics: Research and Applications, 2008. 16(4): p. 297–305 [0004] Kasemann et. al., "Luminescence imaging for the detection of shunts on silicon solar cells" Progress in Photovoltaics: Research and Applications, 2008. 16 (4): p. 297-305 [0004]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010004868 DE102010004868A1 (en) | 2010-01-18 | 2010-01-18 | Device for inspection of solar cell, has two electrical separate contacts that are electrically connected with solar cell incorporating camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010004868 DE102010004868A1 (en) | 2010-01-18 | 2010-01-18 | Device for inspection of solar cell, has two electrical separate contacts that are electrically connected with solar cell incorporating camera |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010004868A1 true DE102010004868A1 (en) | 2011-07-21 |
Family
ID=44313915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201010004868 Withdrawn DE102010004868A1 (en) | 2010-01-18 | 2010-01-18 | Device for inspection of solar cell, has two electrical separate contacts that are electrically connected with solar cell incorporating camera |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102010004868A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112007001071T5 (en) | 2006-05-02 | 2009-04-09 | National University Corporation Nara Institute of Science and Technology, Ikoma | Method and device for evaluating solar cells and their use |
-
2010
- 2010-01-18 DE DE201010004868 patent/DE102010004868A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112007001071T5 (en) | 2006-05-02 | 2009-04-09 | National University Corporation Nara Institute of Science and Technology, Ikoma | Method and device for evaluating solar cells and their use |
Non-Patent Citations (1)
Title |
---|
Kasemann et. al., "Luminescence imaging for the detection of shunts an silicon solar cells" Progress in Photovoltaics: Research and Applications, 2008. 16(4): p. 297-305 |
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Legal Events
Date | Code | Title | Description |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |