JP6676546B2 - 太陽電池 - Google Patents
太陽電池 Download PDFInfo
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- JP6676546B2 JP6676546B2 JP2016567825A JP2016567825A JP6676546B2 JP 6676546 B2 JP6676546 B2 JP 6676546B2 JP 2016567825 A JP2016567825 A JP 2016567825A JP 2016567825 A JP2016567825 A JP 2016567825A JP 6676546 B2 JP6676546 B2 JP 6676546B2
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- 239000011888 foil Substances 0.000 claims description 122
- 239000000758 substrate Substances 0.000 claims description 59
- 239000004065 semiconductor Substances 0.000 claims description 49
- 238000003466 welding Methods 0.000 claims description 47
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 80
- 238000000059 patterning Methods 0.000 description 21
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 15
- 239000002184 metal Substances 0.000 description 15
- 229920005591 polysilicon Polymers 0.000 description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
- 229910052710 silicon Inorganic materials 0.000 description 12
- 239000010703 silicon Substances 0.000 description 12
- 238000005530 etching Methods 0.000 description 10
- 239000010410 layer Substances 0.000 description 10
- 239000010949 copper Substances 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 238000000151 deposition Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000002923 metal particle Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 229910052718 tin Inorganic materials 0.000 description 7
- 230000008021 deposition Effects 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 235000012431 wafers Nutrition 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 238000000608 laser ablation Methods 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000006117 anti-reflective coating Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
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- 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
- H01L31/022433—Particular geometry of the grid contacts
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- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
-
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- 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
-
- 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
- H01L31/022441—Electrode arrangements specially adapted for back-contact solar cells
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- 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
- H01L31/0236—Special surface textures
- H01L31/02363—Special surface textures of the semiconductor body itself, e.g. textured active layers
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- 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
- H01L31/0248—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 characterised by their semiconductor bodies
- H01L31/036—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 characterised by their semiconductor bodies characterised by their crystalline structure or particular orientation of the crystalline planes
- H01L31/0368—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 characterised by their semiconductor bodies characterised by their crystalline structure or particular orientation of the crystalline planes including polycrystalline semiconductors
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- 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
- H01L31/06—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 characterised by potential barriers
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- 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
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- 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
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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
- 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
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Photovoltaic Devices (AREA)
Description
以下の複数の段落は、(添付の請求項を含む)本開示で見出される用語に関する、定義及び/又はコンテキストを提供する。
[項目1]
基板と、
上記基板に又は上記基板の上方に配置された半導体領域と、
上記半導体領域に、複数の溶接領域を介して結合されたコンタクトフィンガであって、上記複数の溶接領域の第1の溶接領域は部分的溶接部である、コンタクトフィンガと
を備える
太陽電池。
[項目2]
上記複数の溶接領域は上記コンタクトフィンガ上に非対称的に配置されている、項目1に記載の太陽電池。
[項目3]
上記複数の溶接領域のうちの少なくとも1つは上記複数の溶接領域の別の1つとは異なる長さである、項目1に記載の太陽電池。
[項目4]
上記コンタクトフィンガと上記半導体領域とに結合され、かつ両者の間に結合された第1の導電性領域を更に備える項目1に記載の太陽電池。
[項目5]
上記コンタクトフィンガと上記第1の導電性領域とに結合され、かつ両者の間に結合された第2の導電性領域を更に備える項目4に記載の太陽電池。
[項目6]
上記半導体領域のそれぞれのn型及びp型領域の間に配置されたダメージ緩衝域を更に備える項目1に記載の太陽電池。
[項目7]
上記ダメージ緩衝域は、レーザエネルギを吸収するように構成された吸収領域である、項目6に記載の太陽電池。
[項目8]
上記コンタクトフィンガは、アルミニウムを含む箔を有する、項目1に記載の太陽電池。
[項目9]
基板に又は上記基板の上方に配置された半導体領域上に導電箔を配置する段階 と、
上記導電箔の複数のランダム位置にレーザを印加して、上記導電箔と上記半導体領域との間に複数の溶接部を形成する段階と
を備える
太陽電池を製造する方法。
[項目10]
上記導電箔をパターニングして上記太陽電池のための複数のコンタクトフィンガを形成する段階であって、
上記複数の溶接部のうちの少なくとも1つは上記複数のコンタクトフィンガのうちの1つの縁部とオーバーラップする段階を更に備える項目9に記載の方法。
[項目11]
上記導電箔を配置する上記段階の前に、上記半導体領域上に第1の導電性領域を形成する段階を更に備え、上記レーザを印加する上記段階は、上記レーザを印加して上記複数の溶接部を上記導電箔と上記第1の導電性領域との間に形成する段階を含む、項目9に記載の方法。
[項目12]
上記第1の導電性領域上に第2の導電性領域を形成する段階を更に備える項目11に記載の方法。
[項目13]
上記第1の導電性領域を形成する上記段階は、上記太陽電池にわたってブランケットの第1の導電性領域を形成する段階を含む、項目11に記載の方法。
[項目14]
溝切り及びエッチング技術を適用して上記導電箔及び上記第1の導電性領域をパターニングして、上記太陽電池用の複数のコンタクトフィンガを形成する段階を更に備える項目13に記載の方法。
[項目15]
上記半導体領域の隣接するp型及びn型ドープ領域間の領域において、上記導電箔と上記基板との間にダメージ緩衝域を形成する段階を更に備える項目11に記載の方法。
[項目16]
上記レーザを印加する上記段階の前に、上記導電箔と上記基板との間に間隙を生成する段階を更に備える項目9に記載の方法。
[項目17]
基板と、
上記基板の上方に配置されたp型ドープ領域及びn型ドープ領域と、
上記p型ドープ領域に第1の箔コンタクトフィンガを結合し、上記n型ドープ領域に第2の箔コンタクトフィンガを結合するランダム配列の複数の溶接部と
を備える
太陽電池。
[項目18]
上記ランダム配列の複数の溶接部のうち少なくとも1つの溶接部は部分的溶接部である、項目17に記載の太陽電池。
[項目19]
上記p型ドープ領域と上記n型ドープ領域との間のトレンチに配置された吸収領域を更に備える項目17に記載の太陽電池。
[項目20]
上記第1及び上記第2の箔コンタクトフィンガと上記p型及び上記n型ドープ領域との間に、それぞれの複数の第1の導電性領域を更に備える項目17に記載の太陽電池。
Claims (10)
- 基板と、
前記基板に又は前記基板の上方に配置された、n型領域及びp型領域を有する半導体領域と、
前記n型領域及び前記p型領域の間に配置されたダメージ緩衝域と、
導電箔及び導電性領域を有し、前記n型領域及び前記p型領域に結合されたコンタクトフィンガと
を備え、
前記n型領域及び前記p型領域に前記導電性領域が結合され、
前記導電箔が、複数の溶接領域を介して前記導電性領域に結合され、
前記複数の溶接領域の第1の溶接領域は部分的溶接部である、
太陽電池。 - 前記複数の溶接領域は前記コンタクトフィンガ上に非対称的に配置されている、請求項1に記載の太陽電池。
- 前記複数の溶接領域のうちの少なくとも1つは前記複数の溶接領域の別の1つとは異なる長さである、請求項1又は2に記載の太陽電池。
- 前記導電箔と前記導電性領域とに結合され、かつ両者の間に結合された第2の導電性領域を更に備える請求項1から3の何れか一項に記載の太陽電池。
- 前記ダメージ緩衝域は、レーザエネルギを吸収するように構成された吸収領域である、請求項1から4の何れか一項に記載の太陽電池。
- 前記コンタクトフィンガは、アルミニウムを含む箔を有する、請求項1から5の何れか一項に記載の太陽電池。
- 基板と、
前記基板の上方に配置されたp型ドープ領域及びn型ドープ領域と、
前記p型ドープ領域に結合された導電性領域と、
前記p型ドープ領域に結合された前記導電性領域に第1の導電箔を結合するランダム配列の複数の溶接部と、
前記n型ドープ領域に結合された導電性領域と、
前記n型ドープ領域に結合された前記導電性領域に第2の導電箔を結合するランダム配列の複数の溶接部と
を備える
太陽電池。 - 前記ランダム配列の複数の溶接部のうち少なくとも1つの溶接部は部分的溶接部である、請求項7に記載の太陽電池。
- 基板と、
前記基板に又は前記基板の上方に配置された半導体領域と、
導電箔及び導電性領域を有し、前記半導体領域に結合されたコンタクトフィンガと
を備え、
前記半導体領域に前記導電性領域が結合され、
前記導電箔が、複数の溶接領域を介して前記導電性領域に結合され、
前記複数の溶接領域の第1の溶接領域は部分的溶接部であり、
前記複数の溶接領域は前記コンタクトフィンガ上に非対称的に配置されている、
太陽電池。 - 基板と、
前記基板に又は前記基板の上方に配置された半導体領域と、
導電箔、第1の導電性領域及び第2の導電性領域を有し、前記半導体領域に、結合されたコンタクトフィンガと
を備え、
前記半導体領域に前記第1の導電性領域が結合され、
前記第2の導電性領域は、前記導電箔と前記第1の導電性領域と間で、両者と結合され、
前記導電箔が、複数の溶接領域を介して前記第1の導電性領域及び前記第2の導電性領域の少なくとも一方に結合され、
前記複数の溶接領域の第1の溶接領域は部分的溶接部である、
太陽電池。
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US14/292,280 US9911874B2 (en) | 2014-05-30 | 2014-05-30 | Alignment free solar cell metallization |
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PCT/US2015/032318 WO2015183761A1 (en) | 2014-05-30 | 2015-05-22 | Alignment free solar cell metallization |
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US9911874B2 (en) | 2018-03-06 |
WO2015183761A1 (en) | 2015-12-03 |
AU2015267265A1 (en) | 2016-11-24 |
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