CN103199157B - Method of improving conversion efficiency of solar photovoltaic cell - Google Patents
Method of improving conversion efficiency of solar photovoltaic cell Download PDFInfo
- Publication number
- CN103199157B CN103199157B CN201310133050.2A CN201310133050A CN103199157B CN 103199157 B CN103199157 B CN 103199157B CN 201310133050 A CN201310133050 A CN 201310133050A CN 103199157 B CN103199157 B CN 103199157B
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- CN
- China
- Prior art keywords
- solar
- transparent
- energy photo
- voltaic cell
- solar photovoltaic
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- 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.)
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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
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a method of improving conversion efficiency of a solar photovoltaic cell. The solar photovoltaic cell is provided with a fully-transparent upper cover and a lower bottom plate. The fully-transparent upper cover is a spherical surface which is formed by fully-transparent continuous spherical glass beads. A visual angle of the fully-transparent upper cover is from 110 degrees to 130 degrees. The lower bottom plate is provided with a polycrystalline silicon coating. Transparent conductive film layers are arranged on the sunlight incident plane and a transparent insulating medium mask layer of the front surface of the solar photovoltaic cell, cover the front surface of the solar photovoltaic cell, and are isolated from an output electrode of the solar photovoltaic cell without contact. Meanwhile, auxiliary voltage of solar photovoltaic cell work is applied on the transparent conductive film layer. The method has the advantages of being capable of improving the photoelectric conversion efficiency of various solar photovoltaic cells, and remarkable in effect.
Description
Technical field
The present invention relates to a kind of solar-energy photo-voltaic cell, specifically a kind of raising solar-energy photo-voltaic cell conversion efficiency
Method, belong to solar-energy photo-voltaic cell field.
Background technology
Solar-energy photo-voltaic cell belongs to a kind of mode of Solar use, has a silicon solar photovoltaic cell, iii-v, and
The solar-energy photo-voltaic cell of the compound semiconductor materials such as cadmium sulfide, and high-molecular organic material solar-energy photo-voltaic cell etc..
Solar-energy photo-voltaic cell also can be divided into monocrystalline solar-energy photo-voltaic cell, polycrystalline solar photovoltaic cell, crystallite or noncrystal membrane too
Sun energy photovoltaic cell etc..With n type single crystal silicon or N-type polycrystalline silicon semi-conducting material as substrate, (P is on N for the P-N junction of manufacture）Silicon
In solar-energy photo-voltaic cell, there is " dead layer " region of a photo-generated carrier, and the photo-generated carrier of sunlight short-wave band is many
Positioned at this region.Due to the presence in " dead layer " region and the impact of Interface composites in this type solar-energy photo-voltaic cell, at this
Photoproduction number carrier in individual region and its adjacent domain can be combined, and does not produce photoelectric current, defeated to solar-energy photo-voltaic cell
Go out electric current not contribute.As a result, its short wave response is very poor, limit the raising of solar-energy photo-voltaic cell conversion efficiency.Using
The technology of the passivation interface defect such as silicon nitride film, reduces the photo-generated carrier recombination rate at interface, reaches raising photovoltaic
The purpose of the conversion efficiency of battery.The violet photocell of shallow junction, close grid and " dead layer " thin feature, all to reduce " dead layer " region
Impact, improves the short wave response of battery, reaches the purpose of the conversion efficiency improving solar-energy photo-voltaic cell.But these technology are not
The presence in " dead layer " region can be completely eliminated.A kind of entitled " technology improving solar-energy photo-voltaic cell conversion efficiency " application number
The front surface disclosing in solar-energy photo-voltaic cell for the Chinese patent of " CN201010221038.3 " increases the thin of electrically conducting transparent
Film layer, and on the thin layer of electrically conducting transparent the boost voltage that applied voltage works as solar-energy photo-voltaic cell method, with
Improve solar-energy photo-voltaic cell conversion efficiency.But this method has some limitations, only to based on N-type silicon series of substrates
The photoelectric transformation efficiency of the solar-energy photo-voltaic cell manufacturing is obviously improved, and the conversion efficiency of remaining battery is simultaneously inconspicuous.
Content of the invention
In order to solve the above problems, the present invention devise a kind of improve solar-energy photo-voltaic cell conversion efficiency method,
The photoelectric transformation efficiency of various solar-energy photo-voltaic cells can be improved, effect is obvious.
The technical scheme is that：
A kind of improve solar-energy photo-voltaic cell conversion efficiency method, concrete grammar is：
Lid and lower shoe on solar-energy photo-voltaic cell setting all-transparent, cover continuously spherical for all-transparent on all-transparent
The sphere that bead is constituted, one side bead sphere makes upper surface increased light receiving surface long-pending about 1/3, on the other hand, spherical
Bead lower surface, such as numerous convex lenss, increased glass plate light gathering again, thus strengthening illuminance, significantly improving
The photovoltaic effect of solar-energy photo-voltaic cell, improves photoelectric transformation efficiency；On described all-transparent, the visual angle of lid is 110 ° -130 °；
It is provided with one layer of polycrystalline silicon coating in lower shoe, improve photoelectric transformation efficiency；In sun light entrance face, before solar-energy photo-voltaic cell
Above the transparent insulating medium mask layer on surface, increase the thin layer of electrically conducting transparent, cover the front surface of solar-energy photo-voltaic cell,
With the output electrode insulation of solar-energy photo-voltaic cell, do not contact, photovoltaic is applied on the thin layer of electrically conducting transparent simultaneously
Battery operated boost voltage.
Further, described bead is high-boron-silicon glass pearl.
Further, on described all-transparent, the visual angle of lid is preferably 120 °.
In the case that solar panel is fixing, sunrise to the whole day of sunset in without rotation solar panel,
Also sunlight can be absorbed to greatest extent, be in maximum conversion ratio state all the time, its power can improve 30% about.Structure is simple,
It is increased without upper cover plate panel, use cost is very low, and efficiency improves.The multiple convex lens constituting micro- Pedicellus et Pericarpium Trapae lens board will be irradiated
Parallel sunlight to solar panel becomes the higher light beam of multiple brightness, improves photoelectric transformation efficiency and illumination is strong
The output voltage of solar panel when degree is weaker.
To the P-N junction being manufactured with N-type semiconductor substrate（P is on N）Solar-energy photo-voltaic cell is transparent in battery front surface
Above dielectric mask layer, increase the thin layer of electrically conducting transparent, its transparent conductive membrane layer applies negative voltage, with applying
Plus negative voltage increase, positioned at transparent insulating medium mask layer and p-type semiconductor material interface, P-type semiconductor near surface
Can band move up, leave the defect level region of forbidden band, to being bent upwards, the interface shape charged region of P-type semiconductor by
Spent condition（Or anti-type state）It is converted to stacking states, the depletion width in P-type semiconductor narrows and so far disappears, i.e. photoproduction
" dead layer " zones vanishes of number carrier.The effective interface recombination rate of photoproduction number carrier declines therewith, and Interface composites reduce.
Whether the photoproduction number carrier that short-wave band sunlight produces in former " dead layer " region, or long-wave band sunlight is former " dead
The photoproduction number carrier that layer " region produces, all more can be collected into photogenerated current, and be contributed to solar-energy photo-voltaic cell
Output photogenerated current in, effectively improve output photogenerated current and the photoelectric transformation efficiency of solar-energy photo-voltaic cell.
It is an advantage of the current invention that：The photoelectric transformation efficiency of various solar-energy photo-voltaic cells can be improved, effect substantially, is tied
Structure is simple, easy to use.
Specific embodiment
Hereinafter the preferred embodiments of the present invention are illustrated it will be appreciated that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
A kind of improve solar-energy photo-voltaic cell conversion efficiency method, concrete grammar is：
Lid and lower shoe on solar-energy photo-voltaic cell setting all-transparent, cover continuously spherical for all-transparent on all-transparent
The sphere that bead is constituted, described bead is high-boron-silicon glass pearl, and bead sphere one side makes upper surface increased light
Surface area about 1/3, on the other hand, globular glass pearl lower surface, such as numerous convex lenss, increased glass plate light gathering again,
Thus strengthening illuminance, significantly improving the photovoltaic effect of solar-energy photo-voltaic cell, improve photoelectric transformation efficiency；Described full impregnated
The visual angle of bright upper lid is 110 ° -130 °, preferably 120 °；It is provided with one layer of polycrystalline silicon coating in lower shoe, improve opto-electronic conversion
Efficiency；On sun light entrance face, the transparent insulating medium mask layer of solar-energy photo-voltaic cell front surface, increase electrically conducting transparent
Thin layer, cover the front surface of solar-energy photo-voltaic cell, with the insulation of the output electrode of solar-energy photo-voltaic cell, do not contact, with
When on the thin layer of electrically conducting transparent apply solar-energy photo-voltaic cell work boost voltage.
In the case that solar panel is fixing, sunrise to the whole day of sunset in without rotation solar panel,
Also sunlight can be absorbed to greatest extent, be in maximum conversion ratio state all the time, its power can improve 30% about.Structure is simple,
It is increased without upper cover plate panel, use cost is very low, and efficiency improves.The multiple convex lens constituting micro- Pedicellus et Pericarpium Trapae lens board will be irradiated
Parallel sunlight to solar panel becomes the higher light beam of multiple brightness, improves photoelectric transformation efficiency and illumination is strong
The output voltage of solar panel when degree is weaker.
Finally it should be noted that：The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, it still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to wherein some technical characteristics.
All any modification, equivalent substitution and improvement within the spirit and principles in the present invention, made etc., should be included in the present invention's
Within protection domain.
Claims (1)
1. a kind of improve solar-energy photo-voltaic cell conversion efficiency method it is characterised in that：Complete in solar-energy photo-voltaic cell setting
Transparent upper cover and lower shoe, all-transparent covers the sphere that the continuous globular glass pearl for all-transparent is constituted；Cover on described all-transparent
Visual angle be 110 ° -130 °；It is provided with one layer of polycrystalline silicon coating in lower shoe；In sun light entrance face, before solar-energy photo-voltaic cell
Above the transparent insulating medium mask layer on surface, increase the thin layer of electrically conducting transparent, cover the front surface of solar-energy photo-voltaic cell,
With the output electrode insulation of solar-energy photo-voltaic cell, do not contact, photovoltaic is applied on the thin layer of electrically conducting transparent simultaneously
Battery operated boost voltage；Described bead is high-boron-silicon glass pearl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310133050.2A CN103199157B (en) | 2013-04-17 | 2013-04-17 | Method of improving conversion efficiency of solar photovoltaic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310133050.2A CN103199157B (en) | 2013-04-17 | 2013-04-17 | Method of improving conversion efficiency of solar photovoltaic cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103199157A CN103199157A (en) | 2013-07-10 |
| CN103199157B true CN103199157B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310133050.2A Expired - Fee Related CN103199157B (en) | 2013-04-17 | 2013-04-17 | Method of improving conversion efficiency of solar photovoltaic cell |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834218A (en) * | 2009-03-09 | 2010-09-15 | 李亚平 | Wide-angle lighting solar energy photovoltaic cell |
| CN102263156A (en) * | 2010-05-28 | 2011-11-30 | 石郧熙 | Technology for improving conversion efficiency of solar photovoltaic battery |
| CN202772160U (en) * | 2012-07-06 | 2013-03-06 | 夏普 | Photovoltaic assembly provided with illuminated area increased by spherical segment arrays |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011160031A2 (en) * | 2010-06-18 | 2011-12-22 | University Of Florida Research Foundation, Inc. | Thin film photovoltaic devices with microlens arrays |
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2013
- 2013-04-17 CN CN201310133050.2A patent/CN103199157B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834218A (en) * | 2009-03-09 | 2010-09-15 | 李亚平 | Wide-angle lighting solar energy photovoltaic cell |
| CN102263156A (en) * | 2010-05-28 | 2011-11-30 | 石郧熙 | Technology for improving conversion efficiency of solar photovoltaic battery |
| CN202772160U (en) * | 2012-07-06 | 2013-03-06 | 夏普 | Photovoltaic assembly provided with illuminated area increased by spherical segment arrays |
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| Publication number | Publication date |
|---|---|
| CN103199157A (en) | 2013-07-10 |
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Granted publication date: 20170208 Termination date: 20200417 |