CN206947362U - The photovoltaic cell that photoelectric transformation efficiency synthesis improves - Google Patents

The photovoltaic cell that photoelectric transformation efficiency synthesis improves Download PDF

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CN206947362U
CN206947362U CN201720742710.0U CN201720742710U CN206947362U CN 206947362 U CN206947362 U CN 206947362U CN 201720742710 U CN201720742710 U CN 201720742710U CN 206947362 U CN206947362 U CN 206947362U
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micro
conversion
protective glass
luminescent material
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王广岭
李宏升
刘忠迎
王栋
范聪聪
吴平
邱波
邓剑平
库建国
李良国
陈畅
陈立波
刘尊年
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SHANDONG DONG'E AOXING SOLAR TECHNOLOGY Co Ltd
Qingdao University of Technology
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SHANDONG DONG'E AOXING SOLAR TECHNOLOGY Co Ltd
Qingdao University of Technology
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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

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Abstract

It the utility model is related to the photovoltaic cell that a kind of photoelectric transformation efficiency synthesis improves; to solve the low problem of existing photovoltaic cell light energy conversion efficiency; it is that photocell surface recombination has protective glass, it is micro- polygonal pyramid array structure surface made of Micrometer-Nanometer Processing Technology to have upper conversion and the protective glass upper surface of down-conversion luminescent material.Micro- polygonal pyramid array structure surface is that rectangular pyramid declines pyramid array body structure surface or triangular pyramid declines pyramid array body structure surface.The nano-particle of one layer of mesoporous silicon oxide of parcel is coated in protective glass lower surface.Improved with the photoelectric transformation efficiency for realizing the full spectral coverage energy of solar spectrum, and prolonged conversion efficiency is kept, it is final to realize the advantages of improving photocell photoelectric transformation efficiency.

Description

The photovoltaic cell that photoelectric transformation efficiency synthesis improves
Technical field
The utility model designs a kind of photovoltaic cell, and the photovoltaic electric improved is integrated more particularly to a kind of photoelectric transformation efficiency Pond.
Background technology
The conversion efficiency of solar cell is affected by many factors at present, and only seldom light is converted to electric energy.Mainly It is more because containing the light of a variety of different wave lengths in sunshine（It is single）The bandwidth of crystal silicon is 1.1eV, and spectral response range is It is ultraviolet to arrive about 1100nm.It is more（It is single）Crystal silicon solar batteries, the wave-length coverage that can carry out opto-electronic conversion is 400-800nm.So The 42% of the full spectral coverage energy of the sun can only be converted into electric energy, 52% infrared band energy and 6% ultraviolet light wave band energy, obtained Less than utilization.Also, 52% infrared energy will heat solar panel, the opto-electronic conversion of visible spectrum is reduced Efficiency.Meanwhile 6% UV energy can gradually destroy it is more（It is single）The crystal structure of crystal silicon, it is set to produce defect, further drop The photoelectric transformation efficiency of low visible light spectral coverage.In addition, light is more（It is single）Crystal silicon solar batteries surface and the production of protective glass interface Raw reflection, also reduce the capacity usage ratio of visible spectrum.
In order to improve the utilization rate of light, upper conversion should be incorporated into solar cell with down-conversion luminescent material, will be red Outer optical band and ultraviolet light wave band are converted to the utilizable visible light wave range of solar cell.Drawn by above-mentioned principle, at first It is cheap organic fluorescent dye to be used on solar photovoltaic device, but it has the shortcomings that obvious：Outdoor application There is photo attenuation phenomenon, and cause solar photovoltaic device performance unstable.
In order to improve the absorptivity of light, reflection can be reduced using single or multiple lift anti-reflection film, improve the saturating of light Penetrate rate.Monofilm is for most of substrate materials, particularly in IR regions, available thin-film material it is very limited or The current technology of person can not be prepared；The manufacturing cost of multi-layer anti-reflection film is high, it is difficult to which large area manufactures.Along with anti-reflective film layer Adhesive force, corrosion stability and the defects of component permeability, it is not promoted.
Patent No. CN201020629457.6 patents are most close patents.In the patent, there are three key technologies to fail to solve Certainly.First：Infrared light is only make use of, fails to utilize ultraviolet light, it is not abundant enough to solar spectrum energy utilization；Second：Do not consider Sunshine reflection problems, caused by optical energy loss；3rd：To changing luminous material optimum doping concentration, consideration is not specific, causes Conversion efficiency is not high.
The content of the invention
The utility model mesh is the drawbacks described above for overcoming prior art, there is provided what a kind of photoelectric transformation efficiency synthesis improved Photovoltaic cell.
To achieve the above object, the photovoltaic cell that the utility model photoelectric transformation efficiency synthesis improves is that photoelectricity pool surface is answered Conjunction has protective glass, and it is particular in that the protective glass upper surface with upper conversion and down-conversion luminescent material is fine adds Micro- polygonal pyramid array structure surface made of work technology.Effectively reduce the same of the forward reflection of light in micro- polygonal pyramid array structure surface When, the light path of down-conversion luminescent material, increases the yield of photo-generated carrier, so as to improve transformation efficiency, and makes water in extension It should not be resident with dust.While with the forward reflection for effectively reducing light, the light path of upper down-conversion luminescent material can be extended, Increase the yield of photo-generated carrier, so as to improve transformation efficiency.This micro- pyramid array body structure surface, come for water and dust Say, should not be resident, can keep the transmitance of protective glass constant for a long time, reduce solar panel cleaning time it is excellent Point.Upper conversion and the protective glass of down-conversion luminescent material more preferably adulterate conversion and the protection glass of down-conversion luminescent material Glass.With photoelectric transformation efficiency master-hand's advantage.
As optimization, micro- polygonal pyramid array structure surface is electric discharge or spark eroding in Micrometer-Nanometer Processing Technology, is being soaked Steep and certain voltage is added between the tool-electrode in dielectric and protective glass electrode, and its close to each other is put Electricity, cause the galvano-cautery evaporation process of electrode and glass into micro- polygonal pyramid array structure surface.Polygonal pyramid is equilateral polygonal pyramid, It is preferred that equilateral symmetrical polygonal pyramid.
As optimization, micro- polygonal pyramid array structure surface is that rectangular pyramid declines pyramid array body structure surface or Rhizoma Sparganii The micro- pyramid array body structure surface of bevel-type.
As optimization, micro- polygonal pyramid array structure height is between 7-12nm.
As optimization, up-conversion luminescent material corresponding with down-conversion luminescent material is sodium stearyl sulfate protection NaYF4:Er/Tm/Gd nano-particles；The side base angle of micro- polygonal pyramid array structure is between 55-75 degree.
As optimization, the sodium stearyl sulfate protects NaYF4:Er/Tm/Gd nano-particles are dissolved in secondary water Sodium hydroxide, then ethanol and sodium stearyl sulfate are added thereto successively under strong stirring, lasting stirring, mix solution Close uniform；Then the erbium chloride prepared, thulium chloride, the gadolinium chloride aqueous solution are sequentially added；Finally, the NH4F solution prepared The NaYF4 for wherein, washing the sodium stearyl sulfate protection obtained for several times repeatedly with deionized water and absolute ethyl alcohol is added dropwise: Er/Tm/Gd nano-particles.
As optimization, it using water and ethanol as solvent, sodium stearyl sulfate is that surface is lived that the down-conversion luminescent material, which is, Property agent, using high temperature solid-state method prepare Pr3+-Eu3+Nano-particle down-conversion luminescent material；Or it is embedded in spin-coating glass In nanocrystal silicon, and the down-converter of the nanocrystal silicon of this insertion spin-coating glass is placed on monocrystalline silicon piece and replaces the protection The down-conversion luminescent material of glass.
As optimization, up-conversion luminescent material and the down-conversion luminescent material dopant material is all nano particle, within Portion is adulterated or the mode of surface coating is doped.Inside doping is to use sol-gel technique, high temperature solid-state method will be upper and lower Transition material is doped in protective glass.Surface coating be using hot-dip, Nanothermal spray technology by upper and lower transition material, It is coated on protective glass.
As optimization, the nano-particle of one layer of mesoporous silicon oxide of parcel is coated in protective glass lower surface.
As optimization, the nano-particle of mesoporous silicon oxide is the silica nanometer of the yardstick between both macro and micro Particle.
The utility model is the up-conversion luminescent material that proper ratio is adulterated inside protective glass, such as octadecyl sulfuric acid Sodium protects NaYF4:Er/Tm/Gd nano-particles：Sodium hydroxide is dissolved in secondary water, then successively second under strong stirring Alcohol and sodium stearyl sulfate are added thereto, and lasting stirring, are well mixed solution.Then the chlorination prepared is sequentially added Erbium, thulium chloride, the gadolinium chloride aqueous solution.Finally, the NH4F solution prepared is added dropwise wherein, with deionized water and anhydrous second Alcohol washs the NaYF4 for for several times, obtaining sodium stearyl sulfate protection repeatedly:Er/Tm/Gd nano-particles, and every kind of aqueous solution Doping ratio is suitable, makes conversion efficiency optimal, by multi-photon mechanism by infrared band energy conversion into visible light wave range energy Amount, while the doping for adding appropriate lithium or barium can significantly improve the luminous intensity of up-conversion nano material.
Meanwhile the down-conversion luminescent material of proper ratio is adulterated, Pr is prepared using high temperature solid-state method3+-Eu3+Lower conversion hair Luminescent material and doping ratio is suitable, makes conversion efficiency optimal, while nanocrystal silicon can also be used as down-conversion luminescent material, nanometer Crystal silicon is embedded into spin-coating glass, and this down-converter is placed on monocrystalline silicon piece, by ultraviolet light wave band energy conversion into visible ray Wave band energy.Up-conversion luminescent material and down-conversion luminescent material dopant material are nano particle, with inside doping or surface The mode of coating is added in protective glass, simultaneously because nano-grade size, has substantially no effect on the visible ray of protective glass Transmitance.
Meanwhile more（It is single）The protective glass surface of crystal silicon side, coating be surrounded by one layer it is mesoporous（In macroscopic view and Yardstick between microcosmic）The nano-particle of silica, it is visible light wave range and ultraviolet by infrared band energy conversion further Wave band energy.In order to improve conversion efficiency, by protective glass surface backwards to more（It is single）The surface of crystal silicon side, utilizes microfabrication Electric discharge or spark eroding in technology, plus certain between the tool-electrode and protective glass electrode being soaked in dielectric Voltage, and make its it is close to each other discharge, cause the galvano-cautery of electrode and glass to be evaporated, will surface treatment into micro- pyramid Array structure surface, highly between 7-12nm, while effectively reducing the forward reflection of light, it is luminous that conversion up and down can be extended The light path of material, increase the yield of photo-generated carrier, so as to improve transformation efficiency.This micro- pyramid array body structure surface, it is right It for water and dust, should not be resident, can keep the transmitance of protective glass constant for a long time.Reduce solar panel Cleaning time.
The utility model is directed in background technology, and infrared band energy and ultraviolet light wave band energy are not used；And And infrared band energy heats solar panel, and reduce the photoelectric transformation efficiency of visible spectrum；It is and ultraviolet Optical band energy damages are more（It is single）The crystal structure of crystal silicon, defect is produced, further reduce the opto-electronic conversion effect of visible spectrum The problems such as rate.Up-conversion luminescent material and down-conversion luminescent material doping, or coating are carried out using in protective glass, it is mesoporous（Place Yardstick between both macro and micro）The nano-particle inner surface coating of silica, and the micro- pyramid array in outer surface The method that micro machining process combines, optimal design is integrated, realize the photoelectric transformation efficiency of the full spectral coverage energy of solar spectrum Improve, and prolonged conversion efficiency is kept, it is final to realize the basic goal for improving photocell photoelectric transformation efficiency.
Brief description of the drawings
Fig. 1 is the photovoltaic cell protective glass and photocell table below that the utility model photoelectric transformation efficiency synthesis improves The schematic diagram of face structural property；Fig. 2 is the photovoltaic cell surface micro fabrication that the utility model photoelectric transformation efficiency synthesis improves Structure opticpath schematic diagram；Fig. 3 is that the utility model photoelectric transformation efficiency is integrated in the photovoltaic cell improved in protective glass Adulterate upper and lower changing luminous material schematic diagram in portion.
Embodiment
As illustrated, the photovoltaic cell that the utility model photoelectric transformation efficiency synthesis improves is that photoelectricity pool surface 1 is compounded with Protective glass 2, it is particular in that the upper surface of protective glass 2 with up-conversion luminescent material 3 Yu down-conversion luminescent material 4 It is micro- polygonal pyramid array structure surface that Micrometer-Nanometer Processing Technology will be surface-treated.Effectively reduce on micro- polygonal pyramid array structure surface While the forward reflection of light, the light path of down-conversion luminescent material in extension, increase the yield of photo-generated carrier, turn so as to improve Change efficiency, and water and dust is resident.While with the forward reflection for effectively reducing light, conversion up and down can be extended The light path of luminescent material, increase the yield of photo-generated carrier, so as to improve transformation efficiency.This micro- pyramid array structure table It face, for water and dust, should not be resident, can keep the transmitance of protective glass constant for a long time, reduce solar-electricity The advantages of cleaning time of pond plate.Protective glass with upper conversion and down-conversion luminescent material more preferably adulterates upper conversion with The protective glass of changing luminous material.
Specifically：Micro- polygonal pyramid array structure surface is electric discharge or spark eroding in Micrometer-Nanometer Processing Technology, is being soaked Certain voltage is added between tool-electrode and protective glass electrode in dielectric, and make its it is close to each other discharge, The micro- polygonal pyramid array structure surface for causing the galvano-cautery evaporating surface of electrode and glass to be processed into.Polygonal pyramid is equilateral more ribs Cone, preferably equilateral symmetrical polygonal pyramid.
Specifically：Micro- polygonal pyramid array structure surface is that rectangular pyramid declines pyramid array body structure surface 6 or Rhizoma Sparganii The micro- pyramid array body structure surface 6 of bevel-type.
Specifically：Micro- polygonal pyramid array structure height is between 7-12nm.Specifically：With down-conversion luminescent material 4 Corresponding up-conversion luminescent material 4 is the NaYF4 of sodium stearyl sulfate protection:Er/Tm/Gd nano-particles.Micro- more ribs The side base angle of array structure is bored between 55-75 degree.
Specifically：The sodium stearyl sulfate protects NaYF4:Er/Tm/Gd nano-particles are the dissolved hydrogens in secondary water Sodium oxide molybdena, then ethanol and sodium stearyl sulfate are added thereto successively under strong stirring, lasting stirring, mix solution Uniformly；Then the erbium chloride prepared, thulium chloride, the gadolinium chloride aqueous solution are sequentially added；Finally, the NH4F solution prepared by It is added dropwise to the NaYF4 for wherein, washing the sodium stearyl sulfate protection obtained for several times repeatedly with deionized water and absolute ethyl alcohol: Er/Tm/Gd nano-particles.
Specifically：It using water and ethanol is solvent, sodium stearyl sulfate for surface-active that the down-conversion luminescent material 4, which is, Agent, the Pr prepared using high temperature solid-state method3+-Eu3+Nano-particle down-conversion luminescent material 4；Or it is embedded in spin-coating glass Nanocrystal silicon, and the down-converter of the nanocrystal silicon of this insertion spin-coating glass is placed on monocrystalline silicon piece and replaces the protection glass The down-conversion luminescent material of glass.
Specifically：Up-conversion luminescent material 3 and down-conversion luminescent material 4 dopant material is all nano particle, within Portion is adulterated or the mode of surface coating is doped.Inside doping is to use sol-gel technique, high temperature solid-state method will be upper and lower Transition material is doped in protective glass.Surface coating be using hot-dip, Nanothermal spray technology by upper and lower transition material, It is coated on protective glass.
Specifically：Using sol-gel technique by material doped in protective glass, first by metal（Sodium, aluminium etc.）With ethanol Class is reacted, and obtains the alcohol oxide of metal, and when water is added, alcohol oxide acts on forming X-OH groups and alcohol, most end form with water Into X (OR) n intermediates, by the hydrolysis of intermediate, then uniform X (OH) n colloidal sol suspended substances can be made, adjust the acid of colloidal sol Degree or basicity can cause the dehydration between two X-OH keys, and then form gel, add upper and lower transition material, by drying, The protective glass of doping is produced after calcining.
Specifically：Using Nanothermal spray technology, upper and lower transition material is coated on protective glass, will using thermal source Melt material or softening, by thermal source self power or additional compressed air stream, molten drop is atomized or promoted the grain beam for melting grain into injection, Protective glass surface is ejected into certain speed and forms coating.
Specifically：The nano-particle 5 of one layer of mesoporous silicon oxide of parcel is coated in protective glass lower surface.
Specifically：The nano-particle 5 of mesoporous silicon oxide is the silica nanometer of the yardstick between both macro and micro Particle.
More specifically：As shown in figure 1, the photovoltaic cell that the utility model photoelectric transformation efficiency synthesis improves is in photocell Surface 1, and protective glass 2, using up-conversion luminescent material 3, down-conversion luminescent material 4, mesoporous silicon oxide nanoparticle The photovoltaic cell that son 5, micro- pyramid array body structure surface 6 are combined, it can well realize and improve photocell opto-electronic conversion effect The basic goal of rate.
Inside protective glass, the up-conversion luminescent material 3 of proper ratio is adulterated, as sodium stearyl sulfate is protected NaYF4:Er/Tm/Gd nano-particles：Sodium hydroxide is dissolved in secondary water, then successively ethanol and ten under strong stirring SOS is added thereto, and lasting stirring, is well mixed solution.Then the erbium chloride prepared, chlorination are sequentially added Thulium, the gadolinium chloride aqueous solution.Finally, the NH4F solution prepared is added dropwise wherein, with deionized water and absolute ethyl alcohol repeatedly Washing for several times, obtains the NaYF4 of sodium stearyl sulfate protection:Er/Tm/Gd nano-particles, and every kind of aqueous solution doping ratio Example is suitable, makes conversion efficiency optimal, meanwhile, adulterate the down-conversion luminescent material 4 of proper ratio：Using water and ethanol as solvent, ten SOS is surfactant, and Pr is prepared using high temperature solid-state method3+-Eu3+Down-conversion luminescent material, by ultraviolet light wave Section energy conversion is into visible light wave range energy.Up-conversion luminescent material and down-conversion luminescent material dopant material are nano particle, In a manner of inside doping or surface coat, simultaneously because nano-grade size, the visible ray of protective glass is had substantially no effect on Transmitance.
Meanwhile more（It is single）The protective glass surface of crystal silicon side, coating be surrounded by one layer it is mesoporous（In macroscopic view and Yardstick between microcosmic）The nano-particle 5 of silica, it is visible light wave range and purple by infrared band energy conversion further Wave section energy.In order to improve conversion efficiency, by protective glass surface backwards to more（It is single）The surface of crystal silicon side, added using fine Electric discharge or spark eroding in work technology, one is added between the tool-electrode and protective glass electrode being soaked in dielectric Fixed voltage, and make its it is close to each other discharge, cause the galvano-cautery of electrode and glass to be evaporated, will surface treatment into micro- golden word Tower array structure surface, highly between 7-12nm, while the forward reflection of light is effectively reduced, conversion up and down can be extended The light path of luminescent material, increase the yield of photo-generated carrier, so as to improve transformation efficiency.This micro- pyramid array structure table It face, for water and dust, should not be resident, can keep the transmitance of protective glass constant for a long time.Reduce solar-electricity The cleaning time of pond plate.
Fig. 2 is micro- pyramid array structure opticpath schematic diagram, it can be seen that sunshine is incident on micro- pyramid structure Surface, the forward reflection of light can be effectively reduced, final most light can enter in solar cell, obtain light Sufficiently utilize, and the light path of upper down-conversion luminescent material can be extended, increase the yield of photo-generated carrier, turn so as to improve Change efficiency.It for water and dust, should not be resident, can keep the transmitance of protective glass constant for a long time.Reduce the sun The cleaning time of energy cell panel.
Fig. 3 is shown inside protective glass 2, adulterates the schematic diagram of the upper down-conversion luminescent material of proper ratio, upper to turn Change such as sodium stearyl sulfate protection NaYF4 of luminescent material 3:Er/Tm/Gd nano-particles, with will be infrared by multi-photon mechanism Optical band energy conversion is into visible light wave range energy.Down-conversion luminescent material 4, rare earth ion have abundant energy level, and electronics is in 4f Transition or 4f energy levels produce light radiation to the transition of 5d energy levels in layer.So lower conversion can be realized using rare earth ion Process.Such as Pr3+-Eu3+Rare earth ion doped nano particle, Ce3+-Tb3+Rare earth ion doped nano particle etc..Lower transfer process By ultraviolet light wave band energy conversion into visible light wave range energy.
To sum up, the utility model is utilized on photocell and protective glass, luminous using up-conversion luminescent material, lower conversion The method that material, the nano-particle of mesoporous silicon oxide, micro- pyramid array body structure surface are combined, with the utility model technology To rely on, using the teaching of the invention it is possible to provide a kind of photovoltaic cell photoelectric transformation efficiency higher solar power system.
The utility model is directed in background technology, and infrared band energy and ultraviolet light wave band energy are not used；And And infrared band energy heats solar panel, and reduce the photoelectric transformation efficiency of visible spectrum；It is and ultraviolet Optical band energy damages are more（It is single）The crystal structure of crystal silicon, defect is produced, further reduce the opto-electronic conversion effect of visible spectrum The problems such as rate.Up-conversion luminescent material and down-conversion luminescent material doping, or coating are carried out using in protective glass, it is mesoporous（Place Yardstick between both macro and micro）The nano-particle inner surface coating of silica, and the micro- pyramid array in outer surface The method that micro machining process combines, optimal design is integrated, realize the photoelectric transformation efficiency of the full spectral coverage energy of solar spectrum Improve, and prolonged conversion efficiency is kept, it is final to realize the basic goal for improving photocell photoelectric transformation efficiency.

Claims (10)

1. the photovoltaic cell that a kind of photoelectric transformation efficiency synthesis improves, photocell surface recombination have protective glass, it is characterised in that It is micro- polygonal pyramid array junctions made of Micrometer-Nanometer Processing Technology with upper conversion and the protective glass upper surface of down-conversion luminescent material Structure surface.
2. photovoltaic cell according to claim 1, it is characterised in that micro- polygonal pyramid array structure surface is Micrometer-Nanometer Processing Technology In electric discharge or spark eroding, certain electricity is added between the tool-electrode and protective glass electrode being soaked in dielectric Pressure, and make its it is close to each other discharge, cause the galvano-cautery evaporation process of electrode and glass into micro- polygonal pyramid array structure Surface.
3. according to any photovoltaic cells of claim 1-2, it is characterised in that micro- polygonal pyramid array structure surface is four Pyramid declines pyramid array body structure surface or triangular pyramid declines pyramid array body structure surface.
4. according to any photovoltaic cells of claim 1-2, it is characterised in that micro- polygonal pyramid array structure height is in 7- Between 12nm.
5. photovoltaic cell according to claim 1, it is characterised in that up-conversion luminescence material corresponding with down-conversion luminescent material Material is the NaYF4 of sodium stearyl sulfate protection:Er/Tm/Gd nano-particles；The side base angle of micro- polygonal pyramid array structure Between 55-75 degree.
6. photovoltaic cell according to claim 5, it is characterised in that the sodium stearyl sulfate protects NaYF4:Er/Tm/ Gd nano-particles are that sodium hydroxide is dissolved in secondary water, then successively ethanol and sodium stearyl sulfate under strong stirring It is added thereto, lasting stirring, is well mixed solution；Then it is water-soluble that the erbium chloride prepared, thulium chloride, gadolinium chloride are sequentially added Liquid；Finally, the NH4F solution prepared is added dropwise wherein, washs what is obtained for several times repeatedly with deionized water and absolute ethyl alcohol The NaYF4 of sodium stearyl sulfate protection:Er/Tm/Gd nano-particles.
7. photovoltaic cell according to claim 5, it is characterised in that the down-conversion luminescent material is using water and ethanol to be molten Agent, sodium stearyl sulfate are surfactant, the Pr prepared using high temperature solid-state method3+-Eu3+Changed under nano-particle luminous Material；Or the nanocrystal silicon in spin-coating glass is embedded in, and the down-converter of the nanocrystal silicon of this insertion spin-coating glass It is placed on monocrystalline silicon piece and replaces the down-conversion luminescent material of the protective glass.
8. photovoltaic cell according to claim 5, it is characterised in that the up-conversion luminescent material and down-conversion luminescent material Dopant material is all nano particle, is doped in a manner of inside doping or surface coat.
9. according to any photovoltaic cells of claim 5-8, it is characterised in that in protective glass lower surface, coating wraps up one layer The nano-particle of mesoporous silicon oxide.
10. photovoltaic cell according to claim 9, it is characterised in that the nano-particle of mesoporous silicon oxide be in macroscopic view and The Nano particles of silicon dioxide of yardstick between microcosmic.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107359213A (en) * 2017-06-25 2017-11-17 青岛理工大学 Photovoltaic cell photoelectric transformation efficiency integrates raising method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107359213A (en) * 2017-06-25 2017-11-17 青岛理工大学 Photovoltaic cell photoelectric transformation efficiency integrates raising method
CN107359213B (en) * 2017-06-25 2019-05-03 青岛理工大学 Photovoltaic cell photoelectric conversion efficiency integrates improvement method

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