CN108231939B - A kind of fluorescent solar light collecting device based on spectrum conversion - Google Patents
A kind of fluorescent solar light collecting device based on spectrum conversion Download PDFInfo
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- CN108231939B CN108231939B CN201810010123.1A CN201810010123A CN108231939B CN 108231939 B CN108231939 B CN 108231939B CN 201810010123 A CN201810010123 A CN 201810010123A CN 108231939 B CN108231939 B CN 108231939B
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- glassy layer
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- 238000001228 spectrum Methods 0.000 title claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 239000011651 chromium Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- 239000004411 aluminium Substances 0.000 claims abstract description 10
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 10
- 239000004038 photonic crystal Substances 0.000 claims abstract description 10
- 238000007731 hot pressing Methods 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
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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
- H01L31/04—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
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/055—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
-
- 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
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
-
- 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
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention belongs to concentrating solar battery technical fields, a kind of fluorescent solar light collecting device based on spectrum conversion are specifically provided, for solving the problems such as fluorescence quantum efficiency is low and escape cone Fluorescence；Fluorescent solar light collecting device of the present invention is made of optical reflectance coating, fluorescence coating, the first glassy layer, layer of photonic crystals, the second glassy layer and the infrared reflection film stacked gradually from the bottom up, light collecting device two sides installation connection solar panel；Hot pressing is made after fluorescence coating is blended by chromium doped aluminium nano-luminescent material with organic glass；For fluorescence coating refraction coefficient less than the first glassy layer refraction coefficient, the second glassy layer refraction coefficient is less than the first glassy layer refraction coefficient and is greater than air refraction coefficient.The present invention forms two-stage constraint to fluorescence by using the design of suitable fluorescence coating and the first glassy layer, layer of photonic crystals and the second glassy layer, and fluorescent solar light collecting device is made to have higher energy efficiency.
Description
Technical field
The invention belongs to concentrating solar battery technical fields, are related to photonic crystal, specially a kind of to be converted based on spectrum
Fluorescent solar light collecting device.
Background technique
Fluorescent solar light collecting device (Luminescent Solar Concentrators, abbreviation based on spectrum conversion
LSC it is) a kind of novel Salar light-gathering device, receives significant attention in recent years.Firstly, in organic or inorganic waveguide
Fluorescent particles broad absorption sunlight after pass through stoke shift (Stokes Shift) narrow emission near-infrared fluorescent；So
Afterwards, narrowband fluorescence is bound under total reflection condition and propagates in the waveguide, overflows to form optically focused from side；Finally, being placed on side
The fluorescence of aggregation is expeditiously converted to electric current by face, energy band and the matched photovoltaic cell of IR fluorescence, realizes high power concentrator
Solar power generation.
Since the concept that Goetzberger was put forward for the first time LSC device in 1977, the research of LSC device just causes
Extensive concern, but have not yet been reached the satisfactory gain of light and efficiency so far.There are intrinsic in terms of two for traditional LSC device
Loss: (1) fluorescence quantum efficiency low, due to fluorescent particles absorption spectrum is too narrow or absorption coefficient it is low cause fluorescence quantum efficiency compared with
It is low；(2) " escape cone " Fluorescence, since the direction of fluorescent emission is each to uniform, into waveguide " escape cone " fluorescence
It can overflow that (light is from optically denser medium (refraction coefficient n0) enter optically thinner medium (refraction coefficient n1) when, incidence angle is greater than critical
Angle θc=s in-1(n0/n1) when will be totally reflected, and be less than θcWhen will overflow, by θcThe conical surface of composition is " escape cone "),
When the absorption of fluorescent particles is Chong Die with emission spectrum, fluorescent particles can occur self-absorption or scattering phenomena such as, but will cause glimmering
Light repeatedly " escape cone " overflows；Intrinsic loss so that the practical light of LSC device focuses multiple well below its geometric focusing multiple,
Representative value is at 10 times hereinafter, and system effectiveness is also generally lower than 10%.
Summary of the invention
It is an object of the invention to a kind of fluorescence sun based on spectrum conversion there are problem or deficiency, is provided for above-mentioned
Can light collecting device, for solving the problems such as fluorescence quantum efficiency is low and escape cone Fluorescence；To achieve the above object, of the invention
The technical solution of use are as follows:
It is a kind of based on spectrum conversion fluorescent solar light collecting device, by stack gradually from the bottom up optical reflectance coating,
Fluorescence coating, the first glassy layer, layer of photonic crystals, the second glassy layer and infrared reflection film are constituted, the light collecting device two sides installation
Connect solar panel；It is characterized in that, the fluorescence coating is total to by chromium doped aluminium nano-luminescent material with organic glass
Hot pressing is made after mixed；The fluorescence coating refraction coefficient is less than the first glassy layer refraction coefficient, the second glassy layer refraction coefficient
Less than the first glassy layer refraction coefficient and it is greater than air refraction coefficient.
Further, in the fluorescence coating, the mixed proportion of chromium doped aluminium nano-luminescent material and organic glass are as follows:
Every 100g organic glass mixes 0.5~3g chromium doped aluminium nano-luminescent material.
In the chromium doped aluminium nano-luminescent material, Cr:Al mass ratio is 0.1%~0.9%.
The thickness of the fluorescence coating are as follows: 1~10mm, the thickness of first glassy layer are as follows: 1~5mm, second glass
The thickness of layer are as follows: 1~5mm, the layer of photonic crystals: 5~500mm.
From working principle, the present invention provides fluorescent solar light collecting device as shown in Figure 1, illustrating the production of fluorescence
The raw device model separated with communication process, by optical reflectance coating, fluorescent material layer (n1), the first glassy layer (n2), photonic crystal
Layer and the second glassy layer (n3) etc. components composition；Its physical process is as follows: firstly, high-efficiency fluorescence layer (n1) visible light is absorbed, then
Emit near-infrared fluorescent by stoke shift (Stokes Shift), enters the first glassy layer (n from fluorescence coating upper surface2) or
It is reflected back in device from fluorescence coating lower surface；Wherein, into the first glassy layer (n2) in fluorescence part meet total reflection condition,
To be bound in the first glassy layer (n2) in propagate (first order waveguide)；Rest part deviates total reflection condition, into spilling
Light cone, by three-D photon crystal layer " body Bragg diffraction " (Bulk Bragg Diffraction) deviation, with small incidence angle
Into the second glassy layer (n3), meet the second glassy layer (n again3) in total reflection condition, to be bound in the second glassy layer
(n3) in propagate (second level waveguide)；By above-mentioned two-stage fetter after, it can be achieved that close to 100% fluorescence in glass medium (n2、
n3) in propagated with waveguide mode, finally side be emitted, realize optically focused；Forbidden bandwidth and fluorescence light are placed in condenser side
Matched photovoltaic cell is composed, to realize concentrating photovoltaic power generation.
The beneficial effects of the present invention are:
The present invention is based on the fluorescent solar light collecting devices of spectrum conversion, by using chromium doped aluminium nano fluorescent material
Material and organic glass be mixed with fluorescence coating and the first glassy layer, layer of photonic crystals and the second glassy layer design pair
Fluorescence forms two-stage constraint, and fluorescent solar light collecting device is made to have higher energy efficiency.
Detailed description of the invention
Fig. 1 is based on spectrum conversion in the embodiment of the present invention without tracking concentrating solar battery operation principle schematic diagram.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and examples.
The present embodiment provides a kind of fluorescent solar light collecting devices based on spectrum conversion, and structure and working principle is as schemed
Shown in 1, connection solar panel is installed in the light collecting device leftmost side；The fluorescence coating is by Al2O3: Cr3+(Cr:Al mass ratio
For 0.3%) nano-luminescent material and organic glass (refraction coefficient n1=1.5) hot pressing is made after being blended；The bottom is that optics is anti-
Film is penetrated, is followed successively by fluorescence coating (refraction coefficient n from bottom to top1=1.5, thickness 5mm), the first glassy layer (refraction coefficient n2=
1.73, thickness 3mm), layer of photonic crystals, the second glassy layer (refraction coefficient n3=1.5, thickness 3mm), infrared reflection film；Each layer
It successively stacks fixation and device is made.
The above description is merely a specific embodiment, any feature disclosed in this specification, except non-specifically
Narration, can be replaced by other alternative features that are equivalent or have similar purpose；Disclosed all features or all sides
Method or in the process the step of, other than mutually exclusive feature and/or step, can be combined in any way.
Claims (4)
1. a kind of fluorescent solar light collecting device based on spectrum conversion, by the optical reflectance coating, glimmering stacked gradually from the bottom up
Photosphere, the first glassy layer, layer of photonic crystals, the second glassy layer and infrared reflection film are constituted, and the light collecting device two sides installation connects
Connect solar panel；It is characterized in that, the fluorescence coating is blended by chromium doped aluminium nano-luminescent material with organic glass
Hot pressing is made afterwards；For the fluorescence coating refraction coefficient less than the first glassy layer refraction coefficient, the second glassy layer refraction coefficient is small
In the first glassy layer refraction coefficient and it is greater than air refraction coefficient.
2. by the fluorescent solar light collecting device based on spectrum conversion described in claim 1, which is characterized in that the fluorescence coating
In, the mixed proportion of chromium doped aluminium nano-luminescent material and organic glass are as follows: every 100g organic glass mixes 0.5~3g chromium
Doped aluminium nano-luminescent material.
3. by the fluorescent solar light collecting device based on spectrum conversion described in claim 1, which is characterized in that the chromium adulterates oxygen
Change in aluminium nano-luminescent material, Cr:Al mass ratio are as follows: 0.1%~0.9%.
4. by the fluorescent solar light collecting device based on spectrum conversion described in claim 1, which is characterized in that the fluorescence coating
Thickness are as follows: 1~10mm, the thickness of first glassy layer are as follows: 1~5mm, the thickness of second glassy layer are as follows: 1~5mm, institute
State layer of photonic crystals: 5~500nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810010123.1A CN108231939B (en) | 2018-01-05 | 2018-01-05 | A kind of fluorescent solar light collecting device based on spectrum conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810010123.1A CN108231939B (en) | 2018-01-05 | 2018-01-05 | A kind of fluorescent solar light collecting device based on spectrum conversion |
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| Publication Number | Publication Date |
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| CN108231939A CN108231939A (en) | 2018-06-29 |
| CN108231939B true CN108231939B (en) | 2019-11-05 |
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| CN201810010123.1A Active CN108231939B (en) | 2018-01-05 | 2018-01-05 | A kind of fluorescent solar light collecting device based on spectrum conversion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202100009533A1 (en) * | 2021-04-15 | 2022-10-15 | Sicis Int Srl | MULTILAYER COVERING SLAB |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969078A (en) * | 2010-08-06 | 2011-02-09 | 白金 | Selectively converging optical device |
| CN106229371A (en) * | 2016-08-30 | 2016-12-14 | 电子科技大学 | Fluorescence waveguide concentration module, device of solar generating and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090120488A1 (en) * | 2007-11-09 | 2009-05-14 | Istvan Gorog | Luminescent solar concentrator devices |
| WO2016060643A1 (en) * | 2014-10-13 | 2016-04-21 | Los Alamos National Security, Llc | Luminescent solar concentrators comprising semiconductor nanocrystals |
| CN106856396A (en) * | 2016-11-14 | 2017-06-16 | 中山大学 | A kind of plane fluorescent concentrator |
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2018
- 2018-01-05 CN CN201810010123.1A patent/CN108231939B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969078A (en) * | 2010-08-06 | 2011-02-09 | 白金 | Selectively converging optical device |
| CN106229371A (en) * | 2016-08-30 | 2016-12-14 | 电子科技大学 | Fluorescence waveguide concentration module, device of solar generating and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| Al2O3:Cr3+/tellurite glass composites: An efficient light converter for silicon solar cell;Boning Han等;《Ceramics International》;20150618;正文实验和结果讨论部分，图1-7 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202100009533A1 (en) * | 2021-04-15 | 2022-10-15 | Sicis Int Srl | MULTILAYER COVERING SLAB |
| EP4075666A1 (en) * | 2021-04-15 | 2022-10-19 | Sicis S.r.l. | Multi-layer coating slab |
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| Publication number | Publication date |
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| CN108231939A (en) | 2018-06-29 |
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