CN104194626A - Nano antireflection coating for solar energy glass as well as preparation method and application thereof - Google Patents
Nano antireflection coating for solar energy glass as well as preparation method and application thereof Download PDFInfo
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- CN104194626A CN104194626A CN201410437127.XA CN201410437127A CN104194626A CN 104194626 A CN104194626 A CN 104194626A CN 201410437127 A CN201410437127 A CN 201410437127A CN 104194626 A CN104194626 A CN 104194626A
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Abstract
The invention discloses nano antireflection coating for solar energy glass as well as a preparation method and application thereof. By utilizing the synergistic effect of SiO2 nanoparticle hydrosol, mesoporous SiO2 hydrosol, TiO2 nanocrystal, ITO nanoparticle and a pH regulator, transmittance of visible lights is greatly improved, and infrared light and ultraviolet light in the sunlight can be converted into visible lights which can be responded by a solar module, so that generating capacity of the solar module is further improved, and the nano antireflection coating for the solar energy glass has good industrial application prospect.
Description
Technical field
The present invention relates to nanometer reflection reduc(t)ing coating and preparation method thereof for a kind of solar energy glass, be applied to solar energy glass surface, thereby can increase daylight transmittance, reach the effect that increases generated energy, belong to photovoltaic technology field.
Background technology
Sun power is a kind of renewable resources, there is the good characteristics such as green non-pollution, just progressively replace traditional Nonrenewable resources and become a kind of main force new forms of energy, the with the fastest developing speed solar module that surely belongs to wherein, utilize the photovoltaic effect of solar cell semiconductor material, solar radiation is directly converted to electric energy.Solar module is formed by solar energy glass, silicon chip of solar cell, backboard and the encapsulation of EVA film, wherein, silicon chip of solar cell is the core that realizes opto-electronic conversion, and its electric weight that can produce is mainly to be decided by the transmittance of incident light, the efficiency of conversion of semiconductor material.For the photoelectric transformation efficiency that how to improve semiconductor material, in prior art, carried out a large amount of scientific efforts, at present, the high-photoelectric transformation efficiency that can realize both at home and abroad reaches 25% left and right (under laboratory condition), about the development of photoelectric transformation efficiency, drop into higher and prospect is pessimistic, therefore, more research work turns to raising transmittance, in the enterprising line correlation technology of solar energy glass, assaults fortified position.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide nanometer reflection reduc(t)ing coating and its preparation method and application for a kind of solar energy glass, can improve the generated energy of solar module.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
Solar energy glass nanometer reflection reduc(t)ing coating, is characterized in that, comprises the component of following weight part: membrane-forming agent: 100 parts; The SiO of 5%wt
2nanoparticles Hydrosol: 30-60 part; The mesoporous SiO of 5%wt
2the water-sol: 20-45 part; TiO
2nanocrystal: 15-40 part; ITO nano particle: 5-15 part; PH adjusting agent: 3-8 part; Flow agent: 3-5 part; Deionized water: 50-150 part.
Preferably, aforementioned membrane-forming agent is selected from: one or more in crude vegetal, gelatin, shellac, acetate fiber.
Preferably, the SiO of aforementioned 5%wt
2in Nanoparticles Hydrosol, SiO
2be of a size of 20-60nm, be shaped as spherical or elliposoidal, the SiO of spherical or elliposoidal
2nanoparticle has advantages of that good stability, sticking power are high, is suitable as the structured material of coating.
Preferably, the mesoporous SiO of aforementioned 5%wt
2in the water-sol, SiO
2particle is: be of a size of the Polygons that 50-100nm, inside have 2-20nm aperture.Research of the present invention is found, mesoporous SiO
2particle can change infrared light, UV-light into visible ray effectively, improves the utilization ratio of sun power, and its polygonized structure can further increase the refraction of visible ray, makes more visible ray see through glass.
Preferably, aforementioned TiO
2the size of nanocrystal and ITO nano particle is 30-80nm, wherein, and TiO
2nanocrystal is Detitanium-ore-type, the TiO of Detitanium-ore-type
2can further improve efficiency and speed that infrared light and UV-light change visible ray into.
Preferably, aforementioned pH adjusting agent is oxalic acid or phosphoric acid, and under suitable pH value, it is more excellent that the reflection preventing ability of coating can reach.
Preferably, aforementioned flow agent is: one or more in polyacrylic ester, acrylate containing silicone or polysiloxane.
In addition, the invention also discloses the preparation method of nanometer reflection reduc(t)ing coating for solar energy glass, comprise the steps:
The SiO of S1, preparation 5%wt
2nanoparticles Hydrosol: add deionized water in Nano particles of silicon dioxide, obtain SiO after fully stirring
2nanoparticles Hydrosol;
The mesoporous SiO of S2, preparation 5%wt
2the water-sol: add deionized water in mesoporous silicon oxide particle, obtain mesoporous SiO after fully stirring
2the water-sol, and the SiO obtaining with step S1
2nanoparticles Hydrosol mixes, set aside for use;
S3, by TiO
2nanocrystal and ITO nano particle drop in the mixing water colloidal sol that step S2 makes and fully stir by aforesaid weight part, form mixed solution, then by pH adjusting agent by the pH regulator of mixed solution to 6.5-7.5;
S4, membrane-forming agent and flow agent are added in the mixed solution that step S3 makes by aforesaid weight part, stir, finally add wherein more a certain amount of deionized water, make it be flowable state, made solar energy glass nanometer reflection reduc(t)ing coating.
Finally, the invention also discloses the application of this coating, comprise the steps:
A1, by aforesaid method, prepare coating;
A2, coating is evenly coated on to glass surface, thickness is 100-230nm, allows its seasoning or enter oven for drying and solidify;
A3, solidify after, further strengthening thermal treatment 3-10min at 600-800 ℃, obtains having the solar energy glass of antireflection coatings.
Usefulness of the present invention is: solar energy glass of the present invention nanometer reflection reduc(t)ing coating, utilizes SiO
2nanoparticles Hydrosol, mesoporous SiO
2the water-sol, TiO
2the synergy of nanocrystal, ITO nano particle and pH adjusting agent, greatly improved the transmittance of visible ray, infrared and UV-light in sunlight can be converted into the visible ray that solar components can respond simultaneously, further increase the generated energy of solar components, there is good prospects for commercial application.
Embodiment
Below in conjunction with specific embodiment, the present invention is done to concrete introduction.
Embodiment 1
(1), the SiO of preparation 5%wt
2nanoparticles Hydrosol: add deionized water in Nano particles of silicon dioxide, obtain SiO after fully stirring
2nanoparticles Hydrosol;
(2), the mesoporous SiO of preparation 5%wt
2the water-sol: add deionized water in mesoporous silicon oxide particle, obtain mesoporous SiO after fully stirring
2the water-sol, and with before preparation SiO
2nanoparticles Hydrosol mixes, set aside for use; Wherein, SiO
2nanoparticles Hydrosol is 30 parts, mesoporous SiO
2the water-sol is 20 parts;
(3), by 15 parts of TiO
2in the mixing water colloidal sol that nanocrystal and 10 parts of ITO nano particles make before dropping into, fully stir, form mixed solution, then by pH adjusting agent by the pH regulator to 6.5 of mixed solution;
(4), in the mixed solution that makes before 100 parts of membrane-forming agents and 3 parts of flow agents are added, stir, finally add wherein again the deionized water of 50 weight parts, make it be flowable state, just made solar energy glass nanometer reflection reduc(t)ing coating;
(5), the coating making is evenly coated on to glass surface, thickness is 150nm, and after allowing its seasoning solidify, further strengthening thermal treatment 5min at 700 ℃, obtains having the solar energy glass of antireflection coatings.
Wherein, membrane-forming agent is selected from: one or more in crude vegetal, gelatin, shellac, acetate fiber; SiO at 5%wt
2in Nanoparticles Hydrosol, preferred SiO
2be of a size of 20-60nm, be shaped as spherical or elliposoidal; Mesoporous SiO at 5%wt
2in the water-sol, SiO
2particle is: be of a size of the Polygons that 50-100nm, inside have 2-20nm aperture; TiO
2the size of nanocrystal and ITO nano particle is 30-80nm, wherein, and TiO
2nanocrystal is Detitanium-ore-type; PH adjusting agent is oxalic acid or phosphoric acid; Flow agent is: one or more in polyacrylic ester, acrylate containing silicone or polysiloxane.
Embodiment 2
The implementation step of embodiment 2 is substantially with embodiment 1, and difference part is that the weight part of each component and implementation condition have nuance, specific as follows:
(1), the SiO of preparation 5%wt
2nanoparticles Hydrosol: add deionized water in Nano particles of silicon dioxide, obtain SiO after fully stirring
2nanoparticles Hydrosol;
(2), the mesoporous SiO of preparation 5%wt
2the water-sol: add deionized water in mesoporous silicon oxide particle, obtain mesoporous SiO after fully stirring
2the water-sol, and with before preparation SiO
2nanoparticles Hydrosol mixes, set aside for use; Wherein, SiO
2nanoparticles Hydrosol is 50 parts, mesoporous SiO
2the water-sol is 45 parts;
(3), by 30 parts of TiO
2in the mixing water colloidal sol that nanocrystal and 15 parts of ITO nano particles make before dropping into, fully stir, form mixed solution, then by pH adjusting agent by the pH regulator to 7 of mixed solution;
(4), in the mixed solution that makes before 100 parts of membrane-forming agents and 5 parts of flow agents are added, stir, finally add wherein again the deionized water of 150 weight parts, make it be flowable state, just made solar energy glass nanometer reflection reduc(t)ing coating;
(5), the coating making is evenly coated on to glass surface, thickness is 200nm, and after allowing its seasoning solidify, further strengthening thermal treatment 10min at 800 ℃, obtains having the solar energy glass of antireflection coatings.
Embodiment 3
The implementation step of embodiment 3 is substantially with embodiment 1, and difference part is that the weight part of each component and implementation condition have nuance, specific as follows:
(1), the SiO of preparation 5%wt
2nanoparticles Hydrosol: add deionized water in Nano particles of silicon dioxide, obtain SiO after fully stirring
2nanoparticles Hydrosol;
(2), the mesoporous SiO of preparation 5%wt
2the water-sol: add deionized water in mesoporous silicon oxide particle, obtain mesoporous SiO after fully stirring
2the water-sol, and with before preparation SiO
2nanoparticles Hydrosol mixes, set aside for use; Wherein, SiO
2nanoparticles Hydrosol is 60 parts, mesoporous SiO
2the water-sol is 30 parts;
(3), by 40 parts of TiO
2in the mixing water colloidal sol that nanocrystal and 5 parts of ITO nano particles make before dropping into, fully stir, form mixed solution, then by pH adjusting agent by the pH regulator to 7.5 of mixed solution;
(4), in the mixed solution that makes before 100 parts of membrane-forming agents and 4 parts of flow agents are added, stir, finally add wherein again the deionized water of 150 weight parts, make it be flowable state, just made solar energy glass nanometer reflection reduc(t)ing coating;
(5), the coating making is evenly coated on to glass surface, thickness is 200nm, and after allowing its seasoning solidify, further strengthening thermal treatment 3min at 800 ℃, obtains having the solar energy glass of antireflection coatings.
Embodiment 4
The implementation step of embodiment 4 is substantially with embodiment 1, and difference part is mainly not contain the mesoporous SiO2 water-sol in coating composition, specific as follows:
(1), the SiO of preparation 5%wt
2nanoparticles Hydrosol: add deionized water in Nano particles of silicon dioxide, obtain SiO after fully stirring
2nanoparticles Hydrosol;
(2), by 40 parts of TiO
250 parts of SiO that make before nanocrystal and 5 parts of ITO nano particles drop into
2in Nanoparticles Hydrosol, fully stir, form mixed solution, then by pH adjusting agent by the pH regulator to 7 of mixed solution;
(3), in the mixed solution that makes before 100 parts of membrane-forming agents and 4 parts of flow agents are added, stir, finally add wherein again the deionized water of 120 weight parts, make it be flowable state, just made solar energy glass nanometer reflection reduc(t)ing coating;
(4), the coating making is evenly coated on to glass surface, thickness is 100nm, and after allowing its oven for drying solidify, further strengthening thermal treatment 10min at 700 ℃, obtains having the solar energy glass of antireflection coatings.
Embodiment 5
The implementation step of embodiment 5 is substantially with embodiment 1, and difference part is mainly not contain in coating composition TiO
2nanocrystal, specific as follows:
(1), the SiO of preparation 5%wt
2nanoparticles Hydrosol: add deionized water in Nano particles of silicon dioxide, obtain SiO after fully stirring
2nanoparticles Hydrosol;
(2), the mesoporous SiO of preparation 5%wt
2the water-sol: add deionized water in mesoporous silicon oxide particle, obtain mesoporous SiO after fully stirring
2the water-sol, and with before preparation SiO
2nanoparticles Hydrosol mixes, set aside for use; Wherein, SiO
2nanoparticles Hydrosol is 60 parts, mesoporous SiO
2the water-sol is 30 parts;
(3), will 15 parts fully stir in the mixing water colloidal sol that makes before dropping into of ITO nano particles, form mixed solution, then by pH adjusting agent by the pH regulator to 7.5 of mixed solution;
(4), in the mixed solution that makes before 100 parts of membrane-forming agents and 3 parts of flow agents are added, stir, finally add wherein again the deionized water of 80 weight parts, make it be flowable state, just made solar energy glass nanometer reflection reduc(t)ing coating;
(5), the coating making is evenly coated on to glass surface, thickness is 160nm, and after allowing its seasoning solidify, further strengthening thermal treatment 8min at 800 ℃, obtains having the solar energy glass of antireflection coatings.
Embodiment 6
The implementation step of embodiment 6 is substantially with embodiment 1, and difference part is mainly not contain in coating composition mesoporous SiO
2the water-sol and TiO
2nanocrystal, specific as follows:
(1), the SiO of preparation 5%wt
2nanoparticles Hydrosol: add deionized water in Nano particles of silicon dioxide, obtain SiO after fully stirring
2nanoparticles Hydrosol;
(2), 15 parts of ITO nano particles are dropped into 60 parts of SiO
2in Nanoparticles Hydrosol, fully stir, form mixed solution, then by pH adjusting agent by the pH regulator to 6.5 of mixed solution;
(3), in the mixed solution that makes before 100 parts of membrane-forming agents and 5 parts of flow agents are added, stir, finally add wherein again the deionized water of 100 weight parts, make it be flowable state, just made solar energy glass nanometer reflection reduc(t)ing coating;
(4), the coating making is evenly coated on to glass surface, thickness is 100nm, and after allowing its seasoning solidify, further strengthening thermal treatment 10min at 600 ℃, obtains having the solar energy glass of antireflection coatings.
Embodiment 7
The implementation step of embodiment 7 is substantially with embodiment 1, and difference part is mainly not use pH adjusting agent to regulate the pH value of coating, specific as follows:
(1), the SiO of preparation 5%wt
2nanoparticles Hydrosol: add deionized water in Nano particles of silicon dioxide, obtain SiO after fully stirring
2nanoparticles Hydrosol;
(2), the mesoporous SiO of preparation 5%wt
2the water-sol: add deionized water in mesoporous silicon oxide particle, obtain mesoporous SiO after fully stirring
2the water-sol, and with before preparation SiO
2nanoparticles Hydrosol mixes, set aside for use; Wherein, SiO
2nanoparticles Hydrosol is 60 parts, mesoporous SiO
2the water-sol is 30 parts;
(3), by 40 parts of TiO
2in the mixing water colloidal sol making before nanocrystal and 5 parts of ITO nano particles drop into, fully stir, form mixed solution;
(4), in the mixed solution that makes before 100 parts of membrane-forming agents and 4 parts of flow agents are added, stir, finally add wherein again the deionized water of 150 weight parts, make it be flowable state, just made solar energy glass nanometer reflection reduc(t)ing coating;
(5), the coating making is evenly coated on to glass surface, thickness is 200nm, and after allowing its seasoning solidify, further strengthening thermal treatment 3min at 800 ℃, obtains having the solar energy glass of antireflection coatings.
Embodiment 8
The implementation step of embodiment 8 is substantially with embodiment 1, and the heat-transmission that is mainly not run business into strong one of difference part is processed, specific as follows:
(1), the SiO of preparation 5%wt
2nanoparticles Hydrosol: add deionized water in Nano particles of silicon dioxide, obtain SiO after fully stirring
2nanoparticles Hydrosol;
(2), the mesoporous SiO of preparation 5%wt
2the water-sol: add deionized water in mesoporous silicon oxide particle, obtain mesoporous SiO after fully stirring
2the water-sol, and with before preparation SiO
2nanoparticles Hydrosol mixes, set aside for use; Wherein, SiO
2nanoparticles Hydrosol is 50 parts, mesoporous SiO
2the water-sol is 45 parts;
(3), by 30 parts of TiO
2in the mixing water colloidal sol that nanocrystal and 15 parts of ITO nano particles make before dropping into, fully stir, form mixed solution, then by pH adjusting agent by the pH regulator to 7 of mixed solution;
(4), in the mixed solution that makes before 100 parts of membrane-forming agents and 5 parts of flow agents are added, stir, finally add wherein again the deionized water of 150 weight parts, make it be flowable state, just made solar energy glass nanometer reflection reduc(t)ing coating;
(5), the coating making is evenly coated on to glass surface, thickness is 200nm, after allowing its seasoning solidify, obtains having the solar energy glass of antireflection coatings.
Embodiment 9
The implementation step of embodiment 9 is substantially with embodiment 1, and difference part is TiO
2the Detitanium-ore-type that nanocrystal does not adopt embodiment 1-8 to adopt, and adopt rutile-type, specific as follows:
(1), the SiO of preparation 5%wt
2nanoparticles Hydrosol: add deionized water in Nano particles of silicon dioxide, obtain SiO after fully stirring
2nanoparticles Hydrosol;
(2), the mesoporous SiO of preparation 5%wt
2the water-sol: add deionized water in mesoporous silicon oxide particle, obtain mesoporous SiO after fully stirring
2the water-sol, and with before preparation SiO
2nanoparticles Hydrosol mixes, set aside for use; Wherein, SiO
2nanoparticles Hydrosol is 60 parts, mesoporous SiO
2the water-sol is 30 parts;
(3), by the TiO of 40 parts of rutile-types
2in the mixing water colloidal sol that nanocrystal and 5 parts of ITO nano particles make before dropping into, fully stir, form mixed solution, then by pH adjusting agent by the pH regulator to 7.5 of mixed solution;
(4), in the mixed solution that makes before 100 parts of membrane-forming agents and 4 parts of flow agents are added, stir, finally add wherein again the deionized water of 150 weight parts, make it be flowable state, just made solar energy glass nanometer reflection reduc(t)ing coating;
(5), the coating making is evenly coated on to glass surface, thickness is 200nm, and after allowing its seasoning solidify, further strengthening thermal treatment 3min at 800 ℃, obtains having the solar energy glass of antireflection coatings.
In order to set forth better the present invention, the solar energy glass with antireflection coatings that adopts light transmittance tester to prepare embodiment 1-9 carries out transmittance test, and be applied to carry out generated energy test on the solar module of same specification, for relatively convenient, the specific yield of our unified test solar cell, the i.e. solar cell total accumulated generation amount under actual illumination condition and the ratio of solar cell rated output out of doors within for some time, test result is in Table 1.
| ? | Transmittance | Specific yield (kWh) |
| Embodiment 1 | 92％ | 1.25 |
| Embodiment 2 | 90％ | 1.32 |
| Embodiment 3 | 94％ | 1.40 |
| Embodiment 4 | 82％ | 0.92 |
| Embodiment 5 | 84％ | 1.05 |
| Embodiment 6 | 75％ | 0.83 |
| Embodiment 7 | 80％ | 1.02 |
| Embodiment 8 | 81％ | 1.06 |
[0086]?
| Embodiment 9 | 83％ | 1.08 |
| Comparative example | 70％ | 0.80 |
Table 1 embodiment 1-9 and the contrast of comparative example test result
Wherein, comparative example is simple glass, in prior art usual use without improved solar energy glass.
As seen from Table 1, when nanometer reflection reduc(t)ing coating of the present invention is applied on solar energy glass, can greatly improve the transmittance of visible ray, the transmittance of embodiment 1-3, all more than 90%, is obviously better than other embodiment and comparative example; And coating of the present invention utilizes SiO
2nanoparticles Hydrosol, mesoporous SiO
2the water-sol, TiO
2the synergy of nanocrystal, ITO nano particle and pH adjusting agent, infrared and UV-light in sunlight can be converted into the visible ray that solar components can respond, further increased the generated energy of solar components, under equal conditions, the generated energy of embodiment 1-3 all will exceed more than 30% than other embodiment, has good prospects.
More than show and described ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand, and above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.
Claims (9)
1. solar energy glass nanometer reflection reduc(t)ing coating, is characterized in that, comprises the component of following weight part:
Membrane-forming agent: 100 parts;
The SiO of 5%wt
2nanoparticles Hydrosol: 30-60 part;
The mesoporous SiO of 5%wt
2the water-sol: 20-45 part;
TiO2 nanocrystal: 15-40 part;
ITO nano particle: 5-15 part;
PH adjusting agent: 3-8 part;
Flow agent: 3-5 part;
Deionized water: 50-150 part.
2. solar energy glass according to claim 1 nanometer reflection reduc(t)ing coating, is characterized in that, described membrane-forming agent is selected from: one or more in crude vegetal, gelatin, shellac, acetate fiber.
3. solar energy glass according to claim 1 nanometer reflection reduc(t)ing coating, is characterized in that, the SiO of described 5%wt
2in Nanoparticles Hydrosol, SiO
2be of a size of 20-60nm, be shaped as spherical or elliposoidal.
4. solar energy glass according to claim 1 nanometer reflection reduc(t)ing coating, is characterized in that, the mesoporous SiO of described 5%wt
2in the water-sol, SiO
2particle is: be of a size of the Polygons that 50-100nm, inside have 2-20nm aperture.
5. solar energy glass according to claim 1 nanometer reflection reduc(t)ing coating, is characterized in that, described TiO
2the size of nanocrystal and ITO nano particle is 30-80nm, wherein, and TiO
2nanocrystal is Detitanium-ore-type.
6. solar energy glass according to claim 1 nanometer reflection reduc(t)ing coating, is characterized in that, described pH adjusting agent is oxalic acid or phosphoric acid.
7. solar energy glass according to claim 1 nanometer reflection reduc(t)ing coating, is characterized in that, described flow agent is: one or more in polyacrylic ester, acrylate containing silicone or polysiloxane.
8. the preparation method of nanometer reflection reduc(t)ing coating for solar energy glass, is characterized in that, comprises the steps:
The SiO of S1, preparation 5%wt
2nanoparticles Hydrosol: add deionized water in Nano particles of silicon dioxide, obtain SiO after fully stirring
2nanoparticles Hydrosol;
The mesoporous SiO of S2, preparation 5%wt
2the water-sol: add deionized water in mesoporous silicon oxide particle, obtain mesoporous SiO after fully stirring
2the water-sol, and the SiO obtaining with step S1
2nanoparticles Hydrosol mixes, set aside for use;
S3, by TiO
2nanocrystal and ITO nano particle drop into step by weight part claimed in claim 1
In the mixing water colloidal sol that S2 makes, fully stir, form mixed solution, then by pH adjusting agent by the pH regulator of mixed solution to 6.5-7.5;
S4, membrane-forming agent and flow agent are added in the mixed solution that step S3 makes by weight, stir, finally add wherein more a certain amount of deionized water, make it be flowable state, made solar energy glass nanometer reflection reduc(t)ing coating.
9. the application of the coating as described in claim 1-7 any one, is characterized in that, comprises the steps:
A1, by method claimed in claim 8, prepare coating;
A2, coating is evenly coated on to glass surface, thickness is 100-230nm, allows its seasoning or enter oven for drying and solidify;
A3, solidify after, further strengthening thermal treatment 3-10min at 600-800 ℃, obtains having the solar energy glass of antireflection coatings.
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