CN107254292A - A kind of composite nanometer particle with the full spectrum body absorption characteristic of solar energy - Google Patents
A kind of composite nanometer particle with the full spectrum body absorption characteristic of solar energy Download PDFInfo
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- CN107254292A CN107254292A CN201710388761.2A CN201710388761A CN107254292A CN 107254292 A CN107254292 A CN 107254292A CN 201710388761 A CN201710388761 A CN 201710388761A CN 107254292 A CN107254292 A CN 107254292A
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- nanosphere
- solar energy
- hemispherical shell
- nanometer particle
- composite nanometer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- Nanotechnology (AREA)
- Organic Chemistry (AREA)
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The present invention provides a kind of composite nanometer particle with the full spectrum body absorption characteristic of solar energy, including：Nanosphere and hemispherical Shell, hemispherical Shell are covered in outside nanosphere and are adapted with the hemisphere of nanosphere；Nanosphere is made up of high doping semiconductor material, and hemispherical Shell is made up of metal material.The nano particle has special asymmetry, can excite a variety of local surface phasmons, so as to realize the full spectral absorption of solar energy, and simple in construction, it is easy to process.
Description
Technical field
It is especially a kind of that there is complete the compound of spectrum body absorption characteristic of solar energy to receive the invention belongs to technical field of solar
Rice grain.
Background technology
Lance increasingly between the environmental change and the ever-increasing energy demand of people of the fossil energy of reduction and sternness
Shield forces people to find and develops regenerative resource.As with huge reserves and lasting renewable and clean energy resource, solar energy
Undoubtedly most Utilization prospects.In view of people occupy 47% that the whole world is always consumed energy, therefore research solar energy to the demand of heat energy
Hot-cast socket is significant to energy security and sustainable development.In recent years, the housing absorption type photo-thermal based on nano-fluid turns
The problem of proposition changed alleviates conventional absorption tabular form heat collector radiation heat loss and larger optical loss.However, currently receiving
Meter Liu Ti uses nano particle only to have good extinction effect in narrower wave band, causes collector efficiency not high.
The content of the invention
Goal of the invention：In order to overcome nano-fluid present in prior art to use nano particle only in narrower wave band
With good extinction effect, the technical problem for causing collector efficiency not high, the present invention provides a kind of with the full light of solar energy
Compose the composite nanometer particle of body absorption characteristic.The composite nanometer particle is combined by the hemisphere of different materials, with special
Asymmetry, can excite a variety of local surface phasmons, so as to have preferable assimilation effect in the case where wide spectrum is incident.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：
A kind of composite nanometer particle with the full spectrum body absorption characteristic of solar energy, including：Nanosphere 1 and hemispherical Shell 2, half
Spherical shell 2 is covered in the outside of nanosphere 1 and is adapted with the hemisphere of nanosphere 1；Nanosphere 1 is made up of high doping semiconductor material,
Hemispherical Shell 2 is made up of metal material.
Further, the radius of the nanosphere 1 is 10~50nm, and the thickness of hemispherical Shell 2 is 2~10nm.
Further, the material of the nanosphere 1 is Ga-doped zinc oxide, and the material of the hemispherical Shell 2 is gold.
Beneficial effect：Compared with prior art, what the present invention was provided has the compound of the full spectrum body absorption characteristic of solar energy
Nano particle, in solar spectrum energy compared with the wavelength of concentration to have higher flatting efficiency in the range of 300nm~2500nm.And
And it is simple in construction, it is easy to process, it is possible to increase collector efficiency.
Brief description of the drawings
Fig. 1 is structure chart of the invention；
In figure：1st, nanosphere, 2, hemispherical Shell.
Embodiment
Further description is done to the present invention below in conjunction with the accompanying drawings.
Fig. 1 show the structure chart of the present invention, including：Nanosphere 1 and hemispherical Shell 2, hemispherical Shell 2 are covered in outside nanosphere 1
Portion is simultaneously adapted with the hemisphere of nanosphere 1；Nanosphere 1 is made up of high-concentration dopant semiconductor, and hemispherical Shell 2 is by metal material system
Into.The composite nanometer particle has preferable flatting efficiency to full spectrum solar energy, and simple in construction, it is easy to process.
The present invention is further described below by 2 embodiments.
Embodiment 1：
The present embodiment is from material of the Ga-doped zinc oxide as nanosphere 1, and gold is the material of hemispherical Shell 2.Nanosphere 1
Radius is 20nm, and the external diameter of hemispherical Shell 2 is 24nm.
The composite nanometer particle that this embodiment is obtained, wavelength be respectively 0.250,0.300,0.405,0.650,0.730,
0.878th, 1.00,1.710 when, ambient refractive index be 1.33 when, its flatting efficiency is calculated by time-domain finite difference
Respectively 3.56,0.392,0.276,0.670,0.492,2.38,0.422,0.382.It is 5 × 10 for particle volume fraction-4,
Thickness is 1mm nano-fluid, and solar absorption efficiency is 97.7%.
Embodiment 2：
The present embodiment is from material of the Ga-doped zinc oxide as nanosphere 1, and gold is the material of hemispherical Shell 2.Nanosphere 1
Radius is 15nm, and the external diameter of hemispherical Shell 2 is 20nm.
The composite nanometer particle that this embodiment is obtained, wavelength be respectively 0.250,0.300,0.405,0.650,0.730,
0.878th, 1.00,1.710 when, ambient refractive index be 1.33 when, its flatting efficiency is calculated by time-domain finite difference
Respectively 2.43,0.430,0.340,0.460,1.62,0.510,0.156,0.194.It is 5 × 10 for particle volume fraction-4,
Thickness is 1mm nano-fluid, and solar absorption efficiency is 97.4%.
From above-described embodiment, the technical scheme that the present invention is provided is compared with the wavelength of concentration in solar spectrum energy
There is higher flatting efficiency in the range of 300nm~2500nm.And it is simple in construction, it is easy to process, it is possible to increase heat collector is imitated
Rate.Solving nano-fluid present in prior art uses nano particle only to have good delustring effect in narrower wave band
Really, the technical problem for causing collector efficiency not high.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of composite nanometer particle with the full spectrum body absorption characteristic of solar energy, it is characterised in that including：Nanosphere (1) and
Hemispherical Shell (2), hemispherical Shell (2) is covered in nanosphere (1) outside and is adapted with the hemisphere of nanosphere (1)；Nanosphere (1) is by height
Doped semiconductor materials are made, and hemispherical Shell (2) is made up of metal material.
2. the composite nanometer particle according to claim 1 with the full spectrum body absorption characteristic of solar energy, it is characterised in that：
The radius of the nanosphere (1) is 10~50nm, and the thickness of hemispherical Shell (2) is 2~10nm.
3. the composite nanometer particle according to claim 2 with the full spectrum body absorption characteristic of solar energy, it is characterised in that：
The material of the nanosphere (1) is Ga-doped zinc oxide, and the material of the hemispherical Shell (2) is gold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710388761.2A CN107254292A (en) | 2017-05-27 | 2017-05-27 | A kind of composite nanometer particle with the full spectrum body absorption characteristic of solar energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710388761.2A CN107254292A (en) | 2017-05-27 | 2017-05-27 | A kind of composite nanometer particle with the full spectrum body absorption characteristic of solar energy |
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| CN107254292A true CN107254292A (en) | 2017-10-17 |
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| CN201710388761.2A Pending CN107254292A (en) | 2017-05-27 | 2017-05-27 | A kind of composite nanometer particle with the full spectrum body absorption characteristic of solar energy |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735775A (en) * | 2010-01-26 | 2010-06-16 | 上海第二工业大学 | Method for preparing nano fluid for heat transfer medium of solar heat exchange system |
| US20100288472A1 (en) * | 2009-03-20 | 2010-11-18 | University Of South Carolina | Nanofluids for thermal management systems |
| CN104927787A (en) * | 2014-03-18 | 2015-09-23 | 南京理工大学 | Plasmon polariton nano fluid and preparation method thereof |
| CN105651090A (en) * | 2016-02-20 | 2016-06-08 | 内蒙古博特科技有限责任公司 | Novel nano pulse heat superconducting device of three-dimensional spiral condensation structure |
| CN105860937A (en) * | 2016-05-10 | 2016-08-17 | 高邮久创信息科技有限公司 | Nano-fluid superconduction liquid for heat pipe type vacuum collector tube and preparation method of nano-fluid superconduction liquid |
| CN106118611A (en) * | 2016-06-29 | 2016-11-16 | 无锡信大气象传感网科技有限公司 | A kind of hot pipe type vacuum heat collection pipe nano-fluid superconducting fluid and preparation method thereof |
-
2017
- 2017-05-27 CN CN201710388761.2A patent/CN107254292A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100288472A1 (en) * | 2009-03-20 | 2010-11-18 | University Of South Carolina | Nanofluids for thermal management systems |
| CN101735775A (en) * | 2010-01-26 | 2010-06-16 | 上海第二工业大学 | Method for preparing nano fluid for heat transfer medium of solar heat exchange system |
| CN104927787A (en) * | 2014-03-18 | 2015-09-23 | 南京理工大学 | Plasmon polariton nano fluid and preparation method thereof |
| CN105651090A (en) * | 2016-02-20 | 2016-06-08 | 内蒙古博特科技有限责任公司 | Novel nano pulse heat superconducting device of three-dimensional spiral condensation structure |
| CN105860937A (en) * | 2016-05-10 | 2016-08-17 | 高邮久创信息科技有限公司 | Nano-fluid superconduction liquid for heat pipe type vacuum collector tube and preparation method of nano-fluid superconduction liquid |
| CN106118611A (en) * | 2016-06-29 | 2016-11-16 | 无锡信大气象传感网科技有限公司 | A kind of hot pipe type vacuum heat collection pipe nano-fluid superconducting fluid and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171017 |
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| RJ01 | Rejection of invention patent application after publication |