CN106409955B - Spaceborne radial energy nano cell - Google Patents
Spaceborne radial energy nano cell Download PDFInfo
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- CN106409955B CN106409955B CN201610958055.2A CN201610958055A CN106409955B CN 106409955 B CN106409955 B CN 106409955B CN 201610958055 A CN201610958055 A CN 201610958055A CN 106409955 B CN106409955 B CN 106409955B
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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
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- 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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Abstract
The present invention provides a kind of spaceborne radial energy nano cells, including：Silicon nanowires, cesium iodide layer, body silicon emitter, depletion region, body silicon substrate pole and backboard；The light that silicon nanowires absorbs ultraviolet band, visible waveband and infrared band generates free electron, converges photon energy by silicon nanowires, increases power density；Cesium iodide layer absorbs sigmatron and gamma-rays, by the photon that high-energy ray converting photons are visible light wave range；Body silicon emitter converges excess carriers with base stage, is absorbed to direct projection photon and secondary reflection photon；Depletion region maintains built-in voltage, ensures photo-generated carrier separation；Backboard reflects photon, increases body silicon and absorbs photon probability.The present invention is using cesium iodide scintillator crystal materials as solar cell surface coating structure, the response band of current solar cell is widened to ray area (X-ray and gamma-rays), play certain radiation injury protective action, can meet spacecraft high radiation, low illumination space environment under power demands.
Description
Technical field
The present invention relates to the energy resource system fields in space technology, and in particular, to a kind of spaceborne radial energy nano cell.
Background technology
With the increase of Satellite Payloads, the energy resource supply of satellite become the important limitation of the long-term operation on orbit of satellite because
Element.There are mainly three types of power supply modes for in-orbit spacecraft：Solar cell for supplying power, storage battery power supply and nuclear energy power supply.
Solar energy is converted to electric energy by current 90% or more passing of satelline solar cell.Space solar cell
Response spectral coverage concentrates on visible region, and excitation energy source is single, and space cell radiation injury protective glass quality accounting mistake
Height, cover plate quality accounting about 50%, influences power-supply system efficiency-cost ratio.For tasks such as surveies of deep space, since spacecraft is far from too
Sun, therefore can not be in deep space normal use solar cell.For storage battery power supply mode, when battery power runs out of, battery
It is stopped, accumulator constitutes spacecraft power supply system mainly as energy storage device and space solar cell at present, in " star
Erosion " the stage is that spacecraft continues to provide electric energy.Nuclear energy is the current self-powered unique method of survey of deep space spacecraft, but existing need to
The problems such as being continuously decreased at any time to nuclear material progress radiation protection, nuclear battery output power, application is restricted.
In view of the advantage and disadvantage of three kinds of power supply modes of current spacecraft, for the longevity of survey of deep space spacecraft operation on orbit
Life requires, in conjunction with the development result of current nanometer energy technology, it is proposed that a kind of spaceborne radial energy nano cell, to meet space flight
Device high radiation, low illumination space environment under power demands.
Invention content
For the defects in the prior art, the object of the present invention is to provide a kind of spaceborne radial energy nano cells.
According to spaceborne radial energy nano cell provided by the invention, including：The silicon nanowires that is sequentially overlapped, cesium iodide layer,
Depletion region, body silicon emitter and base stage, backboard；
The silicon nanowires, the light for absorbing ultraviolet band, visible light wave range and infrared band generate free electron；
The cesium iodide layer is multiple visible light wave ranges for absorbing high-energy ray, and by high-energy ray converting photons
Photon；
The body silicon emitter and base stage carry out direct projection photon and secondary reflection photon for converging excess carriers
It absorbs；
The depletion region, for maintaining built-in voltage；
The backboard, for reflecting the photon not absorbed for the first time by the body silicon emitter and base stage.
Preferably, the cesium iodide layer can adulterate different element materials, and the different element material can control
Centre of luminescence spectral coverage changes the absorption spectrum center spectral coverage of battery, realizes battery efficiency regulation and control.
Preferably, the high-energy ray of the cesium iodide layer absorption includes：X-ray and gamma-rays.
Preferably, the cesium iodide can also be used as antiradiation injury structure sheaf.
Compared with prior art, the present invention has following advantageous effect：
1, spaceborne radial energy nano cell provided by the invention by using cesium iodide scintillator crystal materials as solar energy
The response band of current spatial solar cell, is widened from visible light, infrared light that (X is penetrated to ray by battery surface coating structure
Line and gamma-rays), it realizes that radial energy (X-ray and gamma-rays) arrives electric transformation of energy, improves the transformation efficiency of solar panel.
2, spaceborne radial energy nano cell provided by the invention enables survey of deep space spacecraft to absorb high energy at any time and penetrates
Line accumulates electric energy, reduces dependence of the current spacecraft energy resource system to solar energy.
3, spaceborne radial energy nano cell provided by the invention uses cesium iodide scintillator crystal materials as solar cell
Face coat structure plays certain radiation injury protective action, realizes the knot of the energy and antiradiation injury to a certain extent
Structure is multiplexed.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is spaceborne radial energy nano cell structural stratification figure provided by the invention；
Fig. 2 is spaceborne radial energy nano cell energy pathway schematic diagram provided by the invention；
In figure：
1- silicon nanowires；
2- cesium iodides；
3- backboards；
4- emitters；
5- depletion regions；
6- base stages.
Specific implementation mode
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection domain.
The present invention proposes that a kind of spaceborne radial energy nano cell, the spaceborne radial energy nano cell include successively：Silicon is received
Rice noodles, cesium iodide layer, depletion region, body silicon emitter and base stage, backboard；
The silicon nanowires, the light for absorbing ultraviolet band, visible waveband and infrared band generate free electron, pass through
Photon energy converges, and increases power density；
High-energy ray converting photons are multiple visible lights for absorbing sigmatron and gamma-rays by the cesium iodide layer
The photon of wave band, and play certain radiation injury protective action；
The body silicon emitter and base stage carry out direct projection photon and secondary reflection photon for converging excess carriers
It absorbs；
The depletion region ensures photo-generated carrier separation for maintaining built-in voltage；
The backboard increases body silicon and absorbs photon probability for reflecting photon.
Described cesium iodide (CsI) layer has high X-ray acceptance rate and high visible suboutput, can be by CsI
Different element materials are adulterated, centre of luminescence spectral coverage is controlled, to regulate and control the absorption spectrum center spectral coverage of battery, regulation and control battery effect
Rate.
The spaceborne radial energy nano cell widens the response band of current solar cell to ray area (X-ray
And gamma-rays), realize that radial energy (X-ray and gamma-rays) arrives electric transformation of energy.
The spaceborne radial energy nano cell is played certain due to that can accumulate electric energy by absorbing X-ray and gamma-rays
Radiation injury protective action, realize that the structure of the energy and antiradiation injury is multiplexed to a certain extent.
Compared with traditional solar cell, spaceborne radial energy nano cell provided by the invention, as a result of iodate
Caesium scintillator crystal materials widen the response band of current solar cell to ray as solar cell surface coating structure
Area's (X-ray and gamma-rays), the spacecraft power supply being suitable under high radiation, low illumination space environment.
Specifically, as shown in Figure 1, spaceborne radial energy nano cell, including silicon nanowires, cesium iodide layer, body silicon emitter,
Depletion region, body silicon substrate pole and backboard.The light that the silicon nanowires absorbs ultraviolet band, visible waveband and infrared band generates freely
Electronics converges photon energy by silicon nanowires, increases power density；The cesium iodide layer absorbs sigmatron and gamma-rays,
By the photon that high-energy ray converting photons are multiple visible light wave ranges；The body silicon emitter and the superfluous current-carrying of body silicon substrate pole convergence
Son absorbs direct projection photon and secondary reflection photon；The depletion region maintains built-in voltage, ensures photo-generated carrier separation；It is described
Backboard reflects photon, increases body silicon and absorbs photon probability.The present invention widens the response band of current solar cell to ray
Area's (X-ray and gamma-rays), be suitable for high radiation, the survey of deep space spacecraft Long-term absorption ray under low illumination space environment,
Electric energy is accumulated, certain radiation injury protective action is played, realizes that the structure of the energy and antiradiation injury is multiple to a certain extent
With.
Further, as shown in Fig. 2, spaceborne radial energy nano cell energy pathway provided by the invention includes：
(1) for ultraviolet, visible and infrared band light：Silicon nanowires absorbs ultraviolet, visible and infrared band light production
Raw free electron, operation principle is identical as conventional solar cells, to realize luminous energy to electric transformation of energy.
(2) for sigmatron and gamma-rays：Cesium iodide layer absorbs sigmatron and gamma-rays, by high-energy ray photon
It is converted into the photon of multiple visible light wave ranges, such photon is absorbed by the nano wire of solar cell and body silicon, and is converted into
Free electron, to realize that radial energy (X-ray and gamma-rays) arrives electric transformation of energy.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or change within the scope of the claims, this not shadow
Ring the substantive content of the present invention.In the absence of conflict, the feature in embodiments herein and embodiment can arbitrary phase
Mutually combination.
Claims (3)
1. a kind of spaceborne radial energy nano cell, which is characterized in that including：The silicon nanowires that is sequentially overlapped, exhausts cesium iodide layer
Area, body silicon emitter and base stage, backboard；
The silicon nanowires, the light for absorbing ultraviolet band, visible light wave range and infrared band generate free electron；
The cesium iodide layer is the photon of multiple visible light wave ranges for absorbing high-energy ray, and by high-energy ray converting photons；
The body silicon emitter and base stage absorb direct projection photon and secondary reflection photon for converging excess carriers；
The depletion region, for maintaining built-in voltage；
The backboard, for reflecting the photon not absorbed for the first time by the body silicon emitter and base stage；
Wherein, the cesium iodide layer can adulterate different element materials, and the different element material, which can control, to shine
Heart spectral coverage changes the absorption spectrum center spectral coverage of battery, realizes battery efficiency regulation and control.
2. spaceborne radial energy nano cell according to claim 1, which is characterized in that the high energy that the cesium iodide layer absorbs
Ray includes：X-ray and gamma-rays.
3. spaceborne radial energy nano cell according to claim 1, which is characterized in that the cesium iodide can also be used as anti-
Radiation injury structure sheaf.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131433A (en) * | 2006-08-21 | 2008-02-27 | 西门子公司 | X-ray converter element |
| CN104409127A (en) * | 2014-11-14 | 2015-03-11 | 中国工程物理研究院核物理与化学研究所 | Composite converting type isotope battery |
| CN104716209A (en) * | 2015-03-20 | 2015-06-17 | 黄河水电光伏产业技术有限公司 | Solar cell based on silicon substrate nanowire and preparing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101504491B1 (en) * | 2008-12-02 | 2015-03-23 | 삼성전자주식회사 | Apparatus for obtaining x-ray image, method for obtaining x-ray, sensor, imaging device |
| CN102881702B (en) * | 2012-09-26 | 2014-12-31 | 浙江大学 | Array X-ray sensor and manufacturing method thereof |
| WO2015148861A1 (en) * | 2014-03-26 | 2015-10-01 | California Institute Of Technology | Subnanosecond scintillation detector |
| CN104659141A (en) * | 2015-03-07 | 2015-05-27 | 顾海涛 | High-efficiency solar battery covering frequency doubling crystals |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131433A (en) * | 2006-08-21 | 2008-02-27 | 西门子公司 | X-ray converter element |
| CN104409127A (en) * | 2014-11-14 | 2015-03-11 | 中国工程物理研究院核物理与化学研究所 | Composite converting type isotope battery |
| CN104716209A (en) * | 2015-03-20 | 2015-06-17 | 黄河水电光伏产业技术有限公司 | Solar cell based on silicon substrate nanowire and preparing method thereof |
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