EP3186838A1 - Halbleiterstruktur, verfahren zu deren herstellung und deren verwendung - Google Patents
Halbleiterstruktur, verfahren zu deren herstellung und deren verwendungInfo
- Publication number
- EP3186838A1 EP3186838A1 EP15754218.4A EP15754218A EP3186838A1 EP 3186838 A1 EP3186838 A1 EP 3186838A1 EP 15754218 A EP15754218 A EP 15754218A EP 3186838 A1 EP3186838 A1 EP 3186838A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adhesion promoter
- substrate
- semiconductor structure
- semiconductor layer
- semiconductor
- 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- Withdrawn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
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/40—Optical elements or arrangements
- H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
- H10F77/488—Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/30—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising thin-film photovoltaic cells
- H10F19/31—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising thin-film photovoltaic cells having multiple laterally adjacent thin-film photovoltaic cells deposited on the same substrate
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/40—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising photovoltaic cells in a mechanically stacked configuration
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
- H10F71/139—Manufacture or treatment of devices covered by this subclass using temporary substrates
- H10F71/1395—Manufacture or treatment of devices covered by this subclass using temporary substrates for thin-film devices
-
- 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
- Y02E10/52—PV systems with concentrators
Definitions
- the invention relates to a semiconductor structure comprising a substrate and a semiconductor layer, which are connected to one another in a material-bonded manner via a thermally and / or chemically cured adhesion promoter. Likewise, the invention relates to a method for producing such cohesive connections. Use in such semiconductor structures, in particular as a solar cell or solar cell module.
- One approach to reducing the cost of manufacturing photovoltaic modules is to use a thin silicon layer that is processed for mechanical stabilization on a low cost substrate.
- the thin layers can be made in different ways, with one possibility being the silicon layer transfer process.
- a thin silicon layer is used as a seed layer for the epitaxial growth of the active layer and detached from a wafer or directly to a block. Since free-standing layers, the other processes to the solar cell only with undergo low yield, it is close to reinforce them by a stable substrate.
- solar cells which are produced by means of the layer transfer process are not detached from the mother substrate until later in the solar cell process and are fixed with silicone on a glass substrate.
- Both the substrate and the connection between substrate and silicon foil must withstand the following process steps.
- the requirements for the tie layer vary depending on the concept.
- the detachment takes place before or after the epitaxial thickening, which entails different demands on the temperature resistance and / or on the purity of the material.
- the formation of an atomic bond involves extremely high demands on cleanliness and surface polish, so this process will hardly meet the necessary cost requirements of a non-concentrating PV technology.
- the adhesion promoter For use, in particular in the production of photovoltaic modules, the adhesion promoter must fulfill the following requirements:
- the primer must be stable against high temperatures
- Conductive as well as electrically insulating bonding agents should be used. be made possible.
- silicone as a bonding agent directly on the module glass. Due to the low thermal stability of silicones, however, these systems can no longer be used at high-temperature treatment steps above 200 ° C. This technology is described in F. Dross, et al., Crystalline thin-foil Silicon solar cells: where crystalline quality meets thin-film processing, Prog. Photovolt: Res.Appl. 2012, 20, p. 770-784 describe.
- a semiconductor structure comprising at least one substrate and at least one semiconductor layer deposited on the substrate at least in regions, wherein a first semiconductor layer is adhesively bonded to the substrate at least in regions by means of a thermally and / or chemically cured adhesion promoter.
- the cured adhesion promoter has a thermal stability up to a temperature of at least 700 ° C.
- the adhesion promoter has a temperature stability up to temperatures of 800 to 1,300 ° C, which is to be understood by temperature stability, that in this temperature range substantially no metallic impurities are released. This is to be understood as meaning that a surface-normalized stream of impurity atoms is released from the adhesion promoter into the semiconductor layer of less than 10 ⁇ 11 atoms per minute and cm 2 through outgassing and / or diffusion.
- the adhesion promoter contains at least one filler.
- This is in particular selected from the group consisting of sheet silicates, quartz particles, metal particles, silicon powder, ceramic powder and mixtures thereof.
- the use of fillers is particularly advantageous if the surfaces of the semiconductor structure or of the substrate are not completely planar, so that the fillers make it possible to compensate for unevenness in the surfaces of the substrate and / or the semiconductor structure.
- the adhesion promoter or the filler provided with adhesion promoter optical properties that allows a reflection of at least 50% of the incident radiation in the wavelength range of 800 to 1200 nm.
- the adhesion promoter layer can serve as a reflector layer within the semiconductor structure.
- the adhesion promoter may be electrically insulating or electrically conductive.
- the adhesion promoter is preferably electrically conductive.
- the bonding agent is necessarily electrically conductive.
- a preferred variant provides, for example, that on the first semiconductor layer - on the side facing away from the substrate - at least partially an adhesion promoter and then at least one further semiconductor layer is applied. This process can be continued with any number of semiconductor layers.
- the semiconductor layers may have different physical properties. These physical properties include e.g. different spectral properties for the absorption of incident radiation in different wavelength ranges or a different conductivity.
- the at least one substrate and / or the at least one semiconductor layer preferably have a porosity, at least in regions, which makes it possible to remove outgassing arising during a thermal treatment.
- This porosity of substrate or semiconductor layer may preferably be in the range of 5 to 60%.
- the material of the at least one substrate is preferably selected from the group consisting of silicon, sintered silicon, graphite, quartz, Borosilicate glass, glass, ceramic materials, and III-V compound semiconductors, especially ZrS0 4 , SiN, Al 2 O 3 , SiC, GaAs, InP, GaP, GaN, AIGaAsP, and material composites thereof.
- the semiconductor structure is preferably a solar cell, in particular a wafer-equivalent solar cell, a multiple solar cell or a thin-film solar module.
- the invention likewise provides a method for producing a semiconductor structure comprising at least one substrate and at least one semiconductor layer having the structure described above.
- an adhesion promoter and then a semiconductor layer are at least partially applied to the substrate and / or on the semiconductor layer, and then the adhesion promoter is cured thermally and / or chemically, so that a material-locking connection between substrate and semiconductor layer is produced.
- a bonding agent a compound is used, which has a thermal stability up to a temperature of at least 700 ° C.
- the application and curing of the adhesion promoter takes place in a continuous process.
- the semiconductor structure described above is preferably in solar cells or a solar cell module used.
- the figure shows the spectrally resolved direct reflection of a several 10 ⁇ thick silicon foil before ("free-standing foil”) or after bonding with Si0 2 ("attached").
- the curves strive before / after gluing apart.
- the curve without gluing shows the typical back reflection of the light at the back of a silicon foil, which then emerges from the back to the front again and is detected there (in technical jargon called "escape peak") after passing through the film light without absorption and back reflection is transmitted from the back and is not measured.
- the "escape peak" portion is greatly increased due to the back reflection of a portion of the transmitted light from the adhesive layer into the foil and further to the front where it exits and is measured.
- silicon layer thickness is large enough to absorb most of this light, so it does not contribute to increased reflection at the front.
Landscapes
- Photovoltaic Devices (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014217165.2A DE102014217165A1 (de) | 2014-08-28 | 2014-08-28 | Halbleiterstruktur, Verfahren zu deren Herstellung und deren Verwendung |
| PCT/EP2015/069496 WO2016030403A1 (de) | 2014-08-28 | 2015-08-26 | Halbleiterstruktur, verfahren zu deren herstellung und deren verwendung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3186838A1 true EP3186838A1 (de) | 2017-07-05 |
Family
ID=54007712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15754218.4A Withdrawn EP3186838A1 (de) | 2014-08-28 | 2015-08-26 | Halbleiterstruktur, verfahren zu deren herstellung und deren verwendung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20170288082A1 (de) |
| EP (1) | EP3186838A1 (de) |
| JP (1) | JP6557325B2 (de) |
| DE (1) | DE102014217165A1 (de) |
| WO (1) | WO2016030403A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108558424B (zh) * | 2016-07-14 | 2020-10-23 | 德州金奈尔新材料科技有限公司 | 耐热震基底材料及其用作太阳能热发电吸热材料的用途 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2472594A1 (de) * | 2009-08-27 | 2012-07-04 | National Institute of Advanced Industrial Science And Technology | Photoelektrischer wandler mit mehreren anschlüssen, integrierter photoelektrischer wandler mit mehreren anschlüssen sowie herstellungsverfahren dafür |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4333407C1 (de) * | 1993-09-30 | 1994-11-17 | Siemens Ag | Solarzelle mit einer Chalkopyritabsorberschicht |
| JP2002057359A (ja) * | 2000-06-01 | 2002-02-22 | Sharp Corp | 積層型太陽電池 |
| EP1732139B1 (de) * | 2004-03-25 | 2018-12-12 | Kaneka Corporation | Verfahren zur herstellung eines trägers für eine dünnfilmsolarzelle |
| US7157300B2 (en) * | 2004-11-19 | 2007-01-02 | Sharp Laboratories Of America, Inc. | Fabrication of thin film germanium infrared sensor by bonding to silicon wafer |
| TW200631095A (en) * | 2005-01-27 | 2006-09-01 | Koninkl Philips Electronics Nv | A method of manufacturing a semiconductor device |
| JP4969785B2 (ja) * | 2005-02-16 | 2012-07-04 | 本田技研工業株式会社 | カルコパイライト型太陽電池及びその製造方法 |
| US10374120B2 (en) * | 2005-02-18 | 2019-08-06 | Koninklijke Philips N.V. | High efficiency solar cells utilizing wafer bonding and layer transfer to integrate non-lattice matched materials |
| JP4345064B2 (ja) * | 2005-03-25 | 2009-10-14 | セイコーエプソン株式会社 | 光電変換素子の製造方法、および電子機器 |
| JP4681352B2 (ja) * | 2005-05-24 | 2011-05-11 | 本田技研工業株式会社 | カルコパイライト型太陽電池 |
| JP2008112847A (ja) * | 2006-10-30 | 2008-05-15 | Shin Etsu Chem Co Ltd | 単結晶シリコン太陽電池の製造方法及び単結晶シリコン太陽電池 |
| US8143514B2 (en) * | 2007-09-11 | 2012-03-27 | Silicon China (Hk) Limited | Method and structure for hydrogenation of silicon substrates with shaped covers |
| US9404197B2 (en) * | 2008-07-07 | 2016-08-02 | Soraa, Inc. | Large area, low-defect gallium-containing nitride crystals, method of making, and method of use |
| JP4947316B2 (ja) * | 2008-08-15 | 2012-06-06 | 信越化学工業株式会社 | 基板の接合方法並びに3次元半導体装置 |
| DE102009053262A1 (de) * | 2009-11-13 | 2011-05-19 | Institut Für Solarenergieforschung Gmbh | Verfahren zum Bilden von dünnen Halbleiterschichtsubstraten sowie Verfahren zum Herstellen eines Halbleiterbauelements, insbesondere einer Solarzelle, mit einem solchen Halbleiterschichtsubstrat |
| JP5312692B2 (ja) * | 2010-07-29 | 2013-10-09 | 京セラ株式会社 | 光電変換装置 |
| KR20120038632A (ko) * | 2010-10-14 | 2012-04-24 | 삼성전자주식회사 | 태양 전지의 제조 방법 |
| US20120103419A1 (en) * | 2010-10-27 | 2012-05-03 | The Regents Of The University Of California | Group-iii nitride solar cells grown on high quality group-iii nitride crystals mounted on foreign material |
| JP5773630B2 (ja) * | 2010-12-03 | 2015-09-02 | 京セラ株式会社 | 発光素子搭載用基板およびその製造方法 |
| KR101300791B1 (ko) * | 2011-12-15 | 2013-08-29 | 한국생산기술연구원 | 전자빔 조사를 이용한 몰리브덴 박막의 전도도 향상 방법 |
| JP6351601B2 (ja) * | 2012-10-04 | 2018-07-04 | ソーラーシティ コーポレーション | 電気めっき金属グリッドを用いた光起電力装置 |
| US10029422B2 (en) * | 2014-10-07 | 2018-07-24 | Voxel Llc | Three-dimensional modelling and/or manufacturing apparatus, and related processes |
-
2014
- 2014-08-28 DE DE102014217165.2A patent/DE102014217165A1/de active Pending
-
2015
- 2015-08-26 US US15/507,171 patent/US20170288082A1/en not_active Abandoned
- 2015-08-26 WO PCT/EP2015/069496 patent/WO2016030403A1/de not_active Ceased
- 2015-08-26 EP EP15754218.4A patent/EP3186838A1/de not_active Withdrawn
- 2015-08-26 JP JP2017511649A patent/JP6557325B2/ja active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2472594A1 (de) * | 2009-08-27 | 2012-07-04 | National Institute of Advanced Industrial Science And Technology | Photoelektrischer wandler mit mehreren anschlüssen, integrierter photoelektrischer wandler mit mehreren anschlüssen sowie herstellungsverfahren dafür |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014217165A1 (de) | 2016-03-03 |
| WO2016030403A1 (de) | 2016-03-03 |
| JP6557325B2 (ja) | 2019-08-07 |
| JP2017531314A (ja) | 2017-10-19 |
| US20170288082A1 (en) | 2017-10-05 |
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| RIN1 | Information on inventor provided before grant (corrected) |
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