US20140246171A1 - Nanoplasmonic device with nanoscale cooling - Google Patents
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- US20140246171A1 US20140246171A1 US14/349,050 US201114349050A US2014246171A1 US 20140246171 A1 US20140246171 A1 US 20140246171A1 US 201114349050 A US201114349050 A US 201114349050A US 2014246171 A1 US2014246171 A1 US 2014246171A1
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- 239000002086 nanomaterial Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
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- 238000001459 lithography Methods 0.000 claims description 3
- 238000013500 data storage Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 10
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- 238000002198 surface plasmon resonance spectroscopy Methods 0.000 description 8
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- 150000002739 metals Chemical class 0.000 description 2
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- 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
- H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/06—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using magneto-optical elements
-
- 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 invention relates to nanoplasmonic devices and, in particular, to the cooling of nanoplasmonic devices.
- Nanoplasmonic techniques are being used increasingly to couple optical energy into devices. Examples of such applications include magnetic memory, photovoltaic cells, and sub-wavelength lithography. Besides efficient coupling of the energy, sub-wavelength resolutions are possible.
- Such applications make use of an optical spot smaller than the diffraction limit. This can result in substantial localized heating. Heat can be removed with a bulk metallic layer, but this can result in general heating by spreading the heat and may as well change the near-field characteristics of the device. In general, it may be difficult to obtain satisfactory cooling in an efficient and compact manner.
- a nanoplasmonic device includes a nanoplasmonicly heatable layer having a heating side and a cooling side, the heatable layer including a plurality of localized energy receiving sites; and a cooling structure located adjacent to the cooling side, the cooling structure including a nanoscale structure to remove heat from the heated layer.
- FIG. 1 is a schematic diagram of an example of a nanoplasmonic system according to an aspect of the invention
- FIG. 2 is a schematic diagram of an example of a nanoplasmonic device according to another aspect of the invention.
- FIG. 3 is a schematic diagram of an example of a nanoplasmonic device according to an additional aspect of the invention.
- FIG. 4 is a schematic diagram of an example of a nanoplasmonic device according to another additional aspect of the invention.
- an example nanoplasmonic system 10 includes optical sources 12 , nanotransducers 14 , and a nanoplasmonic device 20 .
- the nanoplasmonic device 20 includes a heatable layer 22 having a heating side 24 and a cooling side 26 and a cooling structure 28 adjacent to the cooling side 26 .
- the cooling structure 28 includes nanostructures described more fully below.
- the heatable layer 22 may be, for example, a magnetic memory material responsive to heat, a photovoltaic cell, or a lithography material.
- each optical source 12 and nanotransducer 14 combination can produce a sub-wavelength spot 16 of optical energy on the heatable layer 22 .
- the nanotransducers 14 may be, for example, known devices for localizing incident radiation into a sub-wavelength heated spots such as nanoparticles, nanoantennas and nanowaveguides. Each spot 16 corresponds to a localized energy receiving site. would also be possible to translate a single optical source 12 and nanotransducer 14 combination to successively illuminate the spots 16 . Radiative heat transfer at the nanoscale is the fundamental mechanism in coupling the sub-wavelength optical spots 16 produced by each optical spot 12 and nanotransducer 16 combination.
- Electromagnetic radiation from an object scales with 1/R, where R is the distance from the object.
- the electromagnetic power scales with 1/R ⁇ 2.
- the radiative heat transfer between the surfaces can be several orders of magnitude higher than predicted by Planck's blackbody radiation.
- the radiative heat transfer at sub-wavelength distances can be three orders of magnitude higher than the prediction by Planck's blackbody radiation.
- This enhancement is due to electromagnetic energy tunneling of the evanescent fields, and excitation of surface plasmon or phonon polaritons on the structures.
- plasmonic cooling or phononic cooling correspond to cooling an object through enhanced energy transfer when one or more of the structures supports surface plasmon resonances or surface phononic resonances, respectively.
- space or gap between objects may be, for example, air or vacuum, material such as dielectrics may also be used.
- the nanoplasmonic device 20 includes a heatable layer 22 and a cooling structure 28 ′ formed on a substrate 30 .
- the substrate may be for example a semiconductor or dielectric material such as silicon or any other suitable material such as ceramic glass or amorphous glass and is generally much thicker than the other layers.
- the heatable layer may be, for example, 5 nm to 30 nm thick.
- the cooling structure 28 ′ may be, for example, 5 nm to 200 nm thick.
- the cooling structure 28 ′ is formed from a dielectric or semiconductor 32 with embedded nanoparticles 34 that support surface plasmon or phonon resonance.
- the size of the nanoparticles 34 can be between 5 nm and 200 nm. It is expected that particle sizes on the order of 5 nm to 20 nm is preferable.
- the alternating pattern of particles as a percentage of total width can be referred to as the duty cycle. A typical duty cycle for the particles is around 50 percent.
- the dielectric 32 can be, for example, an oxide such as silicon dioxide, titanium dioxide, or tantulum pentoxide.
- the nanoparticles 32 can be made of metals such as gold, silver, aluminum, platinum, or copper to support surface plasmon resonances.
- the nanoparticles 32 can be made of SiC, cubic boron nitride (cBN), hexagonal boron nitride (hBN), or boron carbide BC to support surface phonon resonances.
- These structures can be fabricated using different techniques.
- One potential way to fabricate these structures is the thin-film deposition and patterning techniques, which are well-known and heavily utilized by semiconductor companies and hard-disk drive companies.
- Thin film layers can be deposited using different techniques such as sputtering, thermal evaporation, or ion beam deposition.
- the patterning of these structures can be achieved using photolithographic techniques. Alternatively, patterning of these structures can also be achieved using more recently developed techniques including self-ordered arrays or nanoimprint lithography.
- Different patterns can be made of nanoparticles embedded into a dielectric or semiconductor layer. Different patterns can be obtained by using different duty-cycles between particles. Also, different patterns include the possible shapes that can form the cross section of the layer. Different patterns can refer to different cross sections of nanoparticles, including, for example, spherical, cylindrical, rectangular and square. Different patterns can also refer to different arrangements of these particles with respect to each other, including regular distribution with constant duty-cycle and random distribution.
- the nanoplasmonic device 20 includes a heatable layer 22 and a cooling structure 28 ′′ formed on a substrate 30 .
- the substrate may be for example a semiconductor or dielectric material such as silicon or any other suitable material such as ceramic glass or amorphous glass and is generally much thicker than the other layers.
- the heatable layer may be, for example, 5 nm to 30 nm thick.
- the cooling structure 28 ′′ may be, for example, 5 nm to 200 nm thick.
- the cooling structure 28 ′′ includes a gap 36 between the heatable layer 22 and the polariton layers 38 , 40 , 42 , 44 .
- the gap 36 facilitates the radiative energy transfer between the layers. This gap should be very small, i.e. nanoscale scale or sub-wavelength scale, to facilitate phonon tunneling (or evanescent energy coupling) between the structures.
- the layer underneath is selected so that it supports surface phonon resonances or alternatively it can be selected to support surface plasmon resonances. This way the radiative energy transfer between the objects is further enhanced.
- the polariton layers 38 , 40 , 42 , 44 are a multilayer structure, where each layer may have a different thickness and material property. Each layer may have a different property from the other.
- the stack supports surface plasmon resonances or surface phonon resonances. These are surface waves that can be excited under specific conditions.
- the layers can be surface plasmon resonance supporting metals such as gold or silver; or surface phonon resonance materials such as SiC, cubic boron nitride (cBN), hexagonal boron nitride (hBN), or boron carbide BC. In between the layers are dielectric layers.
- the nanoplasmonic device 20 includes a heatable layer 22 and a cooling structure 28 ′′′ formed in the substrate 30 .
- the cooling structure 28 ′′′ includes sub-micron channels 46 in the substrate 30 for use with a circulating cooling fluid, for example, water. Inside of each channel 46 are nanorods 48 to improve heat absorption by the cooling fluid. Shapes other than rods could also be employed.
- the cooling structure 28 ′′′ may be, for example fabricated in a silicon substrate.
- the substrate 30 can be formed from two halves anodically bonded together and similarly bonded to the heatable layer 22 . E-beam lithography techniques can be used to form the channels in each half.
- the nanostructures can be deposited by glancing angle deposition (GLAD).
- GLAD glancing angle deposition
- the nanostructures can be rods of copper for example.
- cooling structure 28 ′′′ is localized under the spot 16 . This localization can be employed in the other embodiments herein as well. This allows not only the more rapid cooling possible with nanoscale structures, but also the focusing of the cooling effects more closely to where they are needed.
Abstract
A nanoplasmonic device includes a nanoplasmonicly heatable layer having a heating side and a cooling side, the heatable layer including a plurality of localized energy receiving sites; and a cooling structure located adjacent to the cooling side, the cooling structure including a nanoscale structure to remove heat from the heated layer.
Description
- The present invention relates to nanoplasmonic devices and, in particular, to the cooling of nanoplasmonic devices.
- Nanoplasmonic techniques are being used increasingly to couple optical energy into devices. Examples of such applications include magnetic memory, photovoltaic cells, and sub-wavelength lithography. Besides efficient coupling of the energy, sub-wavelength resolutions are possible.
- Such applications make use of an optical spot smaller than the diffraction limit. This can result in substantial localized heating. Heat can be removed with a bulk metallic layer, but this can result in general heating by spreading the heat and may as well change the near-field characteristics of the device. In general, it may be difficult to obtain satisfactory cooling in an efficient and compact manner.
- A nanoplasmonic device includes a nanoplasmonicly heatable layer having a heating side and a cooling side, the heatable layer including a plurality of localized energy receiving sites; and a cooling structure located adjacent to the cooling side, the cooling structure including a nanoscale structure to remove heat from the heated layer.
-
FIG. 1 is a schematic diagram of an example of a nanoplasmonic system according to an aspect of the invention; -
FIG. 2 is a schematic diagram of an example of a nanoplasmonic device according to another aspect of the invention; -
FIG. 3 is a schematic diagram of an example of a nanoplasmonic device according to an additional aspect of the invention; and -
FIG. 4 is a schematic diagram of an example of a nanoplasmonic device according to another additional aspect of the invention. - Referring to
FIG. 1 , an examplenanoplasmonic system 10 includesoptical sources 12,nanotransducers 14, and ananoplasmonic device 20. - The
nanoplasmonic device 20 includes aheatable layer 22 having aheating side 24 and acooling side 26 and acooling structure 28 adjacent to thecooling side 26. Thecooling structure 28 includes nanostructures described more fully below. - The
heatable layer 22 may be, for example, a magnetic memory material responsive to heat, a photovoltaic cell, or a lithography material. - In operation, each
optical source 12 andnanotransducer 14 combination can produce asub-wavelength spot 16 of optical energy on theheatable layer 22. Thenanotransducers 14 may be, for example, known devices for localizing incident radiation into a sub-wavelength heated spots such as nanoparticles, nanoantennas and nanowaveguides. Eachspot 16 corresponds to a localized energy receiving site. would also be possible to translate a singleoptical source 12 andnanotransducer 14 combination to successively illuminate thespots 16. Radiative heat transfer at the nanoscale is the fundamental mechanism in coupling the sub-wavelengthoptical spots 16 produced by eachoptical spot 12 andnanotransducer 16 combination. - When two objects are not in contact, i.e. when these two objects are separated by a distance, there is still a heat transfer between objects due to radiative heat transfer. The heat is transferred between these two bodies through electromagnetic radiation. Classically, this electromagnetic radiation from an object is related to the temperature of the object, and is known as the blackbody radiation. The electromagnetic radiative heat transfer from an object to another object not only depends on the temperature of the radiator, but also other factors as well, including the distance between two objects. Electromagnetic radiation from an object scales with 1/R, where R is the distance from the object. The electromagnetic power scales with 1/R̂2.
- However, at the nanoscale, that is, the sub-wavelength scale, when objects are separated by less than sub-wavelength scale, the radiative heat transfer between the surfaces can be several orders of magnitude higher than predicted by Planck's blackbody radiation. The radiative heat transfer at sub-wavelength distances can be three orders of magnitude higher than the prediction by Planck's blackbody radiation. This enhancement is due to electromagnetic energy tunneling of the evanescent fields, and excitation of surface plasmon or phonon polaritons on the structures. There are several ways to enhance this radiative heat transfer between objects. When the objects are brought into the sub-wavelength near-field regime, the radiative energy transfer between objects is enhanced due to evanescent coupling of the electromagnetic energy between objects. This phenomenon is also referred to as photon tunneling, and it is observed if the objects are separated by less than the wavelength of light. In addition, surface plasmon resonances or phonon resonances also improve the electromagnetic energy transfer. If the structures support surface plasmon resonances or surface phonon resonances, the electromagnetic energy transfer substantially increases. As used herein, plasmonic cooling or phononic cooling correspond to cooling an object through enhanced energy transfer when one or more of the structures supports surface plasmon resonances or surface phononic resonances, respectively.
- While the space or gap between objects may be, for example, air or vacuum, material such as dielectrics may also be used.
- Referring to
FIG. 2 , thenanoplasmonic device 20 includes aheatable layer 22 and acooling structure 28′ formed on asubstrate 30. The substrate may be for example a semiconductor or dielectric material such as silicon or any other suitable material such as ceramic glass or amorphous glass and is generally much thicker than the other layers. The heatable layer may be, for example, 5 nm to 30 nm thick. Thecooling structure 28′ may be, for example, 5 nm to 200 nm thick. - The
cooling structure 28′ is formed from a dielectric orsemiconductor 32 with embeddednanoparticles 34 that support surface plasmon or phonon resonance. - The size of the
nanoparticles 34 can be between 5 nm and 200 nm. It is expected that particle sizes on the order of 5 nm to 20 nm is preferable. The alternating pattern of particles as a percentage of total width can be referred to as the duty cycle. A typical duty cycle for the particles is around 50 percent. - The dielectric 32 can be, for example, an oxide such as silicon dioxide, titanium dioxide, or tantulum pentoxide. The
nanoparticles 32 can be made of metals such as gold, silver, aluminum, platinum, or copper to support surface plasmon resonances. Alternatively, thenanoparticles 32 can be made of SiC, cubic boron nitride (cBN), hexagonal boron nitride (hBN), or boron carbide BC to support surface phonon resonances. - These structures can be fabricated using different techniques. One potential way to fabricate these structures is the thin-film deposition and patterning techniques, which are well-known and heavily utilized by semiconductor companies and hard-disk drive companies. Thin film layers can be deposited using different techniques such as sputtering, thermal evaporation, or ion beam deposition. The patterning of these structures can be achieved using photolithographic techniques. Alternatively, patterning of these structures can also be achieved using more recently developed techniques including self-ordered arrays or nanoimprint lithography.
- Different patterns can be made of nanoparticles embedded into a dielectric or semiconductor layer. Different patterns can be obtained by using different duty-cycles between particles. Also, different patterns include the possible shapes that can form the cross section of the layer. Different patterns can refer to different cross sections of nanoparticles, including, for example, spherical, cylindrical, rectangular and square. Different patterns can also refer to different arrangements of these particles with respect to each other, including regular distribution with constant duty-cycle and random distribution.
- This utilizes the coupling between fundamental electromagnetic and thermal phenomena. Placing patterned structures that can support surface plasmon resonances and phonon resonances improve the localized electromagnetic and optical field distribution around these regions. Such localized and improved optical fields improve the radiative energy transfer between these particles and the heatable layer thereby improving the localized heating and cooling.
- Referring to
FIG. 3 , thenanoplasmonic device 20 includes aheatable layer 22 and acooling structure 28″ formed on asubstrate 30. The substrate may be for example a semiconductor or dielectric material such as silicon or any other suitable material such as ceramic glass or amorphous glass and is generally much thicker than the other layers. The heatable layer may be, for example, 5 nm to 30 nm thick. The coolingstructure 28″ may be, for example, 5 nm to 200 nm thick. - The cooling
structure 28″ includes agap 36 between theheatable layer 22 and the polariton layers 38, 40, 42, 44. Thegap 36 facilitates the radiative energy transfer between the layers. This gap should be very small, i.e. nanoscale scale or sub-wavelength scale, to facilitate phonon tunneling (or evanescent energy coupling) between the structures. The layer underneath is selected so that it supports surface phonon resonances or alternatively it can be selected to support surface plasmon resonances. This way the radiative energy transfer between the objects is further enhanced. - The polariton layers 38, 40, 42, 44 are a multilayer structure, where each layer may have a different thickness and material property. Each layer may have a different property from the other. The stack supports surface plasmon resonances or surface phonon resonances. These are surface waves that can be excited under specific conditions. The layers can be surface plasmon resonance supporting metals such as gold or silver; or surface phonon resonance materials such as SiC, cubic boron nitride (cBN), hexagonal boron nitride (hBN), or boron carbide BC. In between the layers are dielectric layers.
- Referring to
FIG. 4 , thenanoplasmonic device 20 includes aheatable layer 22 and acooling structure 28′″ formed in thesubstrate 30. - The cooling
structure 28′″ includessub-micron channels 46 in thesubstrate 30 for use with a circulating cooling fluid, for example, water. Inside of eachchannel 46 arenanorods 48 to improve heat absorption by the cooling fluid. Shapes other than rods could also be employed. - The cooling
structure 28′″ may be, for example fabricated in a silicon substrate. Thesubstrate 30 can be formed from two halves anodically bonded together and similarly bonded to theheatable layer 22. E-beam lithography techniques can be used to form the channels in each half. Before bonding, the nanostructures can be deposited by glancing angle deposition (GLAD). The nanostructures can be rods of copper for example. - It should be noted that the cooling
structure 28′″ is localized under thespot 16. This localization can be employed in the other embodiments herein as well. This allows not only the more rapid cooling possible with nanoscale structures, but also the focusing of the cooling effects more closely to where they are needed. - It should be evident that this disclosure is by way of example and that various changes may be made by adding, modifying or eliminating details without departing from the fair scope of the teaching contained in this disclosure. The invention is therefore not limited to particular details of this disclosure except to the extent that the following claims are necessarily so limited.
Claims (12)
1. A nanoplasmonic device comprising:
a nanoplasmonicly heatable layer having a heating side and a cooling side, said heatable layer including a plurality of localized energy receiving sites; and
a cooling structure located adjacent to said cooling side, said cooling structure including a nanoscale structure to remove heat from said heated layer.
2. A nanoplasmonic device according to claim 1 , wherein said cooling structure comprises a plasmonic cooling layer.
3. A nanoplasmonic device according to claim 2 , wherein said plasmonic cooling layer comprises longitudinally alternating nanoparticles and non-nanoparticle regions.
4. A nanoplasmonic device according to claim 2 , wherein said plasmonic cooling layer comprises a gap layer of less than a sub-wavelength thickness and a plasmonic sub-layer.
5. A nanoplasmonic device according to claim 4 , wherein said plasmonic cooling layer comprises alternating gap layers and plasmonic sub-layers.
6. A nanoplasmonic device according to claim 1 , wherein said cooling structure comprises a phononic cooling layer.
7. A nanoplasmonic device according to claim 6 , wherein said phononic cooling layer comprises longitudinally alternating nanoparticle and non-nanoparticle regions.
8. A nanoplasmonic device according to claim 6 , wherein said phononic cooling layer comprises a gap layer of less than a sub-wavelength thickness and a phononic sub-layer.
9. A nanoplasmonic device according to claim 8 , wherein said phononic cooling layer comprises alternating gap layers and phononic sub-layers.
10. A nanoplasmonic device according to claim 1 , wherein said cooling structure comprises sub-micron fluid passages including nanostructure heat-absorbing structures.
11. A nanoplasmonic device according to claim 1 , wherein said cooling structure is localized to said localized energy receiving sites.
12. A nanoplasmonic device according to claim 1 , wherein said device is one of a data storage device, a photovoltaic cell and a lithography medium.
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PCT/US2011/054929 WO2013052045A1 (en) | 2011-10-05 | 2011-10-05 | Nanoplasmonic device with nanoscale cooling |
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EP (1) | EP2764763B1 (en) |
JP (1) | JP5883938B2 (en) |
KR (1) | KR101719886B1 (en) |
CN (1) | CN103959924A (en) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US20180083150A1 (en) * | 2016-09-21 | 2018-03-22 | Kabushiki Kaisha Toshiba | Solar cell, multi-junction solar cell, solar cell module, and photovoltaic system |
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US20100031990A1 (en) * | 2008-08-01 | 2010-02-11 | University Of Kentucky Research Foundation | Cascaded Photovoltaic and Thermophotovoltaic Energy Conversion Apparatus with Near-Field Radiation Transfer Enhancement at Nanoscale Gaps |
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2011
- 2011-10-05 EP EP11873687.5A patent/EP2764763B1/en active Active
- 2011-10-05 WO PCT/US2011/054929 patent/WO2013052045A1/en active Application Filing
- 2011-10-05 US US14/349,050 patent/US20140246171A1/en not_active Abandoned
- 2011-10-05 KR KR1020147012031A patent/KR101719886B1/en active IP Right Grant
- 2011-10-05 JP JP2014534519A patent/JP5883938B2/en active Active
- 2011-10-05 TR TR2017/17340T patent/TR201717340T4/en unknown
- 2011-10-05 CN CN201180073846.2A patent/CN103959924A/en active Pending
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US20030197266A1 (en) * | 2002-04-22 | 2003-10-23 | Jonathan Simon | Cooling of optoelectronic elements |
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US20070277876A1 (en) * | 2006-06-02 | 2007-12-06 | The Boeing Company | Integrated solar cell and battery device including conductive electrical and thermal paths |
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US20180083150A1 (en) * | 2016-09-21 | 2018-03-22 | Kabushiki Kaisha Toshiba | Solar cell, multi-junction solar cell, solar cell module, and photovoltaic system |
US11171253B2 (en) * | 2016-09-21 | 2021-11-09 | Kabushiki Kaisha Toshiba | Solar cell, multi-junction solar cell, solar cell module, and photovoltaic system |
Also Published As
Publication number | Publication date |
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TR201717340T4 (en) | 2018-06-21 |
JP2015503175A (en) | 2015-01-29 |
CN103959924A (en) | 2014-07-30 |
KR101719886B1 (en) | 2017-04-04 |
EP2764763A4 (en) | 2015-06-24 |
WO2013052045A1 (en) | 2013-04-11 |
EP2764763A1 (en) | 2014-08-13 |
EP2764763B1 (en) | 2017-09-27 |
KR20140127795A (en) | 2014-11-04 |
JP5883938B2 (en) | 2016-03-15 |
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