CN104021942A - Method for improving photoelectric property of zinc-oxide-based dye-sensitized solar cell - Google Patents
Method for improving photoelectric property of zinc-oxide-based dye-sensitized solar cell Download PDFInfo
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- CN104021942A CN104021942A CN201410259990.0A CN201410259990A CN104021942A CN 104021942 A CN104021942 A CN 104021942A CN 201410259990 A CN201410259990 A CN 201410259990A CN 104021942 A CN104021942 A CN 104021942A
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- Y02E10/542—Dye sensitized solar cells
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Abstract
The invention relates to a method for improving the photoelectric property of a zinc-oxide-based dye-sensitized solar cell. According to the method, firstly, metal organic framework material MOF-5 is used as precursors to be used for preparing parallelepiped-shaped ZnO aggregation, the parallelepiped-shaped ZnO aggregation serves as a scattering layer of a ZnO light anode, and then metal organic framework material ZIF-8 grows on the surface of the light anode of the double-layer structure and is used as an interface regulating and control layer, so that the photoelectric property of the zinc-oxide-based dye-sensitized solar cell can be improved significantly. The method is simple and easy to implement.
Description
Technical field
The invention belongs to area of solar cell, more specifically relate to a kind of method that improves Zinc oxide-base DSSC photoelectric properties.
Background technology
That DSSC has is cheap, environmental friendliness, making are simple, conversion efficiency advantages of higher, becomes the representative of third generation solar cell.In the light anode material of DSSC, ZnO is because have a high electron mobility, the easy pattern of regulation and control, and the suitable various features such as band structure, have obtained research widely.In order to adsorb abundant dyestuff, light anode material adopts nano-ZnO conventionally, thereby makes electrode material have certain light transmittance, has reduced the overall performance to the utilization of incident light and battery.In order to improve the light collection efficiency of electrode material, can prepare on its surface one deck light scattering layer, the research of still serving as light scattering layer to be the ZnO aggregation of parallelepiped-shaped have not been reported.Meanwhile, with metal organic frame material, serve as interface regulation and control layer, can strengthen the corrosion resistance of ZnO to soda acid, further improve the overall performance of battery.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of method that improves Zinc oxide-base DSSC photoelectric properties is provided.The method using be parallelepiped-shaped ZnO aggregation as light scattering layer, and utilize metal organic frame material ZIF-8 as interface adjusting control agent, improved significantly the photoelectric properties of zno-based DSSC.
For realizing the object of the invention, the present invention implements by following technical solution:
Improve a method for Zinc oxide-base DSSC photoelectric properties, the metal organic frame material MOF-5 of take prepares the zinc oxide aggregates that is parallelepiped-shaped as presoma, and is printed on ZnO photoanode surface and serves as scattering layer; Then at the ZnO photoanode surface growing metal organic framework materials ZIF-8 that contains scattering layer, serve as interface regulation and control layer, can significantly improve the photoelectric properties of Zinc oxide-base DSSC.
The method of described raising Zinc oxide-base DSSC photoelectric properties, concrete steps are:
1) ZnO nano crystalline substance is joined in the ethanolic solution of ethyl cellulose, fully stir and make slurry, with silk screen printing, be imprinted on electro-conductive glass and in 525 ℃ of roasting 2h and obtain pending ZnO electrode material;
2) zinc nitrate and terephthalic acid (TPA) are joined to N, in N '-dimethyl formamide, be stirred well to completely and dissolve, when stirring, in this settled solution, add triethylamine, continue to stir; Reaction finishes afterproduct and utilizes N, and N '-dimethyl formamide washs and is dried, and obtains metal organic frame material MOF-5;
3) powder body material of MOF-5 is joined in the ethanolic solution containing ethyl cellulose and terpinol, fully stir and make MOF-5 precursor pulp, and silk screen printing is after ZnO electrode material surface, in air, calcine, obtain scattering layer, this scattering layer is comprised of the ZnO aggregation of parallelepiped-shaped, the ZnO aggregation of described parallelepiped-shaped, the angle of its a, b axle is 60 degree, the ZnO particle of 80-200 nm size, consists of;
4) the ZnO electrode that contains scattering layer is soaked in the growth mother liquid of metal organic frame material ZIF-8, at its superficial growth ZIF-8, serves as interface regulation and control layer;
5) electrode material finally obtaining, Pt are fitted together the liquid electrolyte solution of electrode and injection, form the nano-crystalline thin film solar cell of the dye sensitization of sandwich structure.
In the ethanolic solution containing ethyl cellulose and terpinol described in step 3), the mass fraction of ethyl cellulose is 1-25wt%, and the mass fraction of terpinol is 1-12wt%.
Calcining heat described in step 3) is 350-550 ℃, and calcination time is 1-6 h.
The thickness of the scattering layer described in step 3) is 0.5-8 μ m.
In growth mother liquid described in step 4), be dissolved with zinc nitrate and glyoxal ethyline, its concentration is 0.1-50 mmol/L.
The growth time of metal organic frame material ZIF-8 described in step 4) is 2-60 minute.
The invention has the advantages that:
The method be take metal organic frame material MOF-5 and is served as light scattering layer as the ZnO aggregation that presoma preparation is parallelepiped-shaped, and using metal organic frame material ZIF-8 as interface adjusting control agent, the photoelectric conversion efficiency of dye sensitization ZnO solar cell can be improved significantly to 3.67% from 3.15%, performance has strengthened more than 16%.
Accompanying drawing explanation
Fig. 1 is the scanning electron microscope (SEM) photograph that is the ZnO aggregation of parallelepiped-shaped;
Fig. 2 is the scanning electron microscope (SEM) photograph of the zinc oxide aggregates of the parallelepiped-shaped under high-resolution;
Fig. 3 is the powder diagram of the zinc oxide aggregates of parallelepiped-shaped.
Fig. 4 is the uv drs figure of ZnO aggregation during as light scattering layer that is parallelepiped-shaped;
Fig. 5 is the i-v curve figure of dye sensitization ZnO solar cell before and after processing.
Specific embodiment
The present invention further illustrates the present invention with the following example, but protection scope of the present invention is not limited to the following example.
embodiment 1
1) ZnO nanocrystalline joined in the ethanolic solution of ethyl cellulose, fully stir and make slurry, with silk screen printing, be imprinted on electro-conductive glass and in 525 ℃ of roasting 2h and obtain pending ZnO electrode material;
2) zinc nitrate and terephthalic acid (TPA) are joined to N, in N '-dimethyl formamide, be stirred well to completely and dissolve, when stirring, in this settled solution, add triethylamine, continue to stir; Reaction finishes afterproduct and utilizes N, and N '-dimethyl formamide washs and is dried, and obtains metal organic frame material MOF-5;
3) powder body material of MOF-5 is joined in the ethanolic solution containing 25wt% ethyl cellulose and 12wt% terpinol, fully stir and make MOF-5 precursor pulp, and silk screen printing is after ZnO electrode material surface, 350 ℃ of calcining 6 h in air, obtain the scattering layer that thickness is 8 μ m, this scattering layer is comprised of the ZnO aggregation that is parallelepiped-shaped;
4) the ZnO electrode that contains scattering layer is soaked in concentration be the zinc nitrate of 10 mM, in the ethanolic solution of glyoxal ethyline, soak time is 20 minutes, at its superficial growth ZIF-8, serve as interface regulation and control layer;
5) electrode material finally obtaining, Pt are fitted together the liquid electrolyte solution of electrode and injection, form the nano-crystalline thin film solar cell of the dye sensitization of sandwich structure.
embodiment 2
1) ZnO nanocrystalline joined in the ethanolic solution of ethyl cellulose, fully stir and make slurry, with silk screen printing, be imprinted on electro-conductive glass and in 525 ℃ of roasting 2h and obtain pending ZnO electrode material;
2) zinc nitrate and terephthalic acid (TPA) are joined to N, in N '-dimethyl formamide, be stirred well to completely and dissolve, when stirring, in this settled solution, add triethylamine, continue to stir; Reaction finishes afterproduct and utilizes N, and N '-dimethyl formamide washs and is dried, and obtains metal organic frame material MOF-5;
3) powder body material of MOF-5 is joined in the ethanolic solution containing 12wt% ethyl cellulose and 8wt% terpinol, fully stir and make MOF-5 precursor pulp, and silk screen printing is after ZnO electrode material surface, 450 ℃ of calcining 2 h in air, obtain the scattering layer that thickness is 4 μ m, this scattering layer is comprised of the ZnO aggregation that is parallelepiped-shaped;
4) the ZnO electrode that contains scattering layer is soaked in concentration be the zinc nitrate of 0.1 mM, in the ethanolic solution of glyoxal ethyline, soak time is 60 minutes, at its superficial growth ZIF-8, serve as interface regulation and control layer;
5) electrode material finally obtaining, Pt are fitted together the liquid electrolyte solution of electrode and injection, form the nano-crystalline thin film solar cell of the dye sensitization of sandwich structure.
embodiment 3
1) ZnO nanocrystalline joined in the ethanolic solution of ethyl cellulose, fully stir and make slurry, with silk screen printing, be imprinted on electro-conductive glass and in 525 ℃ of roasting 2h and obtain pending ZnO electrode material;
2) zinc nitrate and terephthalic acid (TPA) are joined to N, in N '-dimethyl formamide, be stirred well to completely and dissolve, when stirring, in this settled solution, add triethylamine, continue to stir; Reaction finishes afterproduct and utilizes N, and N '-dimethyl formamide washs and is dried, and obtains metal organic frame material MOF-5;
3) powder body material of MOF-5 is joined in the ethanolic solution containing 1wt% ethyl cellulose and 1wt% terpinol, fully stir and make MOF-5 precursor pulp, and silk screen printing is after ZnO electrode material surface, 550 ℃ of calcining 1 h in air, obtain the scattering layer that thickness is 0.5 μ m, this scattering layer is comprised of the ZnO aggregation that is parallelepiped-shaped;
4) the ZnO electrode that contains scattering layer is soaked in concentration be the zinc nitrate of 50 mM, in the ethanolic solution of glyoxal ethyline, soak time is 2 minutes, at its superficial growth ZIF-8, serve as interface regulation and control layer;
5) electrode material finally obtaining, Pt are fitted together the liquid electrolyte solution of electrode and injection, form the nano-crystalline thin film solar cell of the dye sensitization of sandwich structure.
Fig. 1 is the scanning electron microscope (SEM) photograph that is the ZnO aggregation of parallelepiped-shaped; Fig. 2 is the scanning electron microscope (SEM) photograph of the zinc oxide aggregates of the parallelepiped-shaped under high-resolution; Fig. 3 is the powder diagram of the zinc oxide aggregates of parallelepiped-shaped; Fig. 4 is the uv drs figure of ZnO aggregation during as light scattering layer that is parallelepiped-shaped; Fig. 5 is the i-v curve figure of dye sensitization ZnO solar cell before and after processing.From the sign of Fig. 1, can find out, the front plan view of this zinc oxide aggregates approaches perfect parallelogram; As can be seen from Figure 2, the angle of a of this parallelepiped, b axle approaches 60 degree very much, the ZnO particle of 80-200 nm size, consists of; As can be seen from Figure 4, the ZnO aggregation that is parallelepiped-shaped when utilization is during as light scattering layer, and ZnO film can better scatter incident light; As can be seen from Figure 5, the open circuit voltage, short circuit current and the photoelectric conversion efficiency that have a ZnO battery of scattering layer and interface regulation and control layer are all significantly improved.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (8)
1. a method that improves Zinc oxide-base DSSC photoelectric properties, it is characterized in that: the metal organic frame material MOF-5 of take prepares the zinc oxide aggregates that is parallelepiped-shaped as presoma, and be printed on ZnO photoanode surface and serve as scattering layer; Then at the ZnO photoanode surface growing metal organic framework materials ZIF-8 that contains scattering layer, serve as interface regulation and control layer, can significantly improve the photoelectric properties of Zinc oxide-base DSSC.
2. the method for raising Zinc oxide-base DSSC photoelectric properties according to claim 1, is characterized in that: concrete steps are:
1) ZnO nano crystalline substance is joined in the ethanolic solution of ethyl cellulose, fully stir and make slurry, with silk screen printing, be imprinted on electro-conductive glass and in 525 ℃ of roasting 2h and obtain pending ZnO electrode material;
2) zinc nitrate and terephthalic acid (TPA) are joined to N, in N '-dimethyl formamide, be stirred well to completely and dissolve, when stirring, in this settled solution, add triethylamine, continue to stir; Reaction finishes afterproduct and utilizes N, and N '-dimethyl formamide washs and is dried, and obtains metal organic frame material MOF-5;
3) powder body material of MOF-5 is joined in the ethanolic solution containing ethyl cellulose and terpinol, fully stir and make MOF-5 precursor pulp, and silk screen printing is after ZnO electrode material surface, in air, calcine, obtain scattering layer, this scattering layer is comprised of the ZnO aggregation of parallelepiped-shaped;
4) the ZnO electrode that contains scattering layer is soaked in the growth mother liquid of metal organic frame material ZIF-8, at its superficial growth ZIF-8, serves as interface regulation and control layer;
5) electrode material finally obtaining, Pt are fitted together the liquid electrolyte solution of electrode and injection, form the nano-crystalline thin film solar cell of the dye sensitization of sandwich structure.
3. a kind of method that improves Zinc oxide-base DSSC photoelectric properties according to claim 2, it is characterized in that: in the ethanolic solution containing ethyl cellulose and terpinol described in step 3), the mass fraction of ethyl cellulose is 1-25wt%, and the mass fraction of terpinol is 1-12wt%.
4. a kind of method that improves Zinc oxide-base DSSC photoelectric properties according to claim 2, is characterized in that: the calcining heat described in step 3) is 350-550 ℃, and calcination time is 1-6 h.
5. a kind of method that improves Zinc oxide-base DSSC photoelectric properties according to claim 2, it is characterized in that: the ZnO aggregation of the parallelepiped-shaped described in step 3), the angle of its a, b axle is 60 degree, the ZnO particle of 80-200 nm size, consists of.
6. a kind of method that improves Zinc oxide-base DSSC photoelectric properties according to claim 2, is characterized in that: the thickness of the scattering layer described in step 3) is 0.5-8 μ m.
7. a kind of method that improves Zinc oxide-base DSSC photoelectric properties according to claim 2, is characterized in that: in the growth mother liquid described in step 4), be dissolved with zinc nitrate and glyoxal ethyline, its concentration is 0.1-50 mmol/L.
8. a kind of method that improves Zinc oxide-base DSSC photoelectric properties according to claim 2, is characterized in that: the growth time of the metal organic frame material ZIF-8 described in step 4) is 2-60 minute.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105233800A (en) * | 2015-09-23 | 2016-01-13 | 辽宁大学 | Ternary compound based on ZIF-8, and preparation method and applications thereof |
| CN105271364A (en) * | 2015-11-21 | 2016-01-27 | 河南师范大学 | Method for preparing porous zinc oxide microspheres with metal organic skeleton MOF-5 materials being precursors |
| CN106449099A (en) * | 2016-11-08 | 2017-02-22 | 景德镇陶瓷大学 | Photo-anode film based on ZnO nano powder and preparation method thereof |
| CN106531445A (en) * | 2016-12-07 | 2017-03-22 | 天津师范大学 | Preparation method for porous carbon material electrode for counter electrode of dye-sensitized solar cell |
| CN109306077A (en) * | 2018-09-28 | 2019-02-05 | 河南牧业经济学院 | A kind of organic-inorganic composite light diffusing agent and preparation method thereof and the light diffusion film material containing the light diffusing agent |
| CN109360862A (en) * | 2018-10-26 | 2019-02-19 | 中国石油大学(华东) | One kind driving photodetector and preparation method thereof based on ZnO nanorod/Si hetero-junctions certainly |
| CN109841410A (en) * | 2017-11-27 | 2019-06-04 | 李艳 | A kind of carbon-based preparation to electrode of quantum dot sensitized solar cell doping |
| CN114023838A (en) * | 2021-11-03 | 2022-02-08 | 宁波勤邦新材料科技有限公司 | High-reflection high-barrier solar cell back panel film and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105233800A (en) * | 2015-09-23 | 2016-01-13 | 辽宁大学 | Ternary compound based on ZIF-8, and preparation method and applications thereof |
| CN105233800B (en) * | 2015-09-23 | 2017-12-05 | 辽宁大学 | A kind of ternary complex based on ZIF 8 and its preparation method and application |
| CN105271364A (en) * | 2015-11-21 | 2016-01-27 | 河南师范大学 | Method for preparing porous zinc oxide microspheres with metal organic skeleton MOF-5 materials being precursors |
| CN106449099A (en) * | 2016-11-08 | 2017-02-22 | 景德镇陶瓷大学 | Photo-anode film based on ZnO nano powder and preparation method thereof |
| CN106531445A (en) * | 2016-12-07 | 2017-03-22 | 天津师范大学 | Preparation method for porous carbon material electrode for counter electrode of dye-sensitized solar cell |
| CN109841410A (en) * | 2017-11-27 | 2019-06-04 | 李艳 | A kind of carbon-based preparation to electrode of quantum dot sensitized solar cell doping |
| CN109306077A (en) * | 2018-09-28 | 2019-02-05 | 河南牧业经济学院 | A kind of organic-inorganic composite light diffusing agent and preparation method thereof and the light diffusion film material containing the light diffusing agent |
| CN109306077B (en) * | 2018-09-28 | 2020-11-03 | 河南牧业经济学院 | Organic-inorganic composite light diffusant, preparation method thereof and light diffusion film material containing light diffusant |
| CN109360862A (en) * | 2018-10-26 | 2019-02-19 | 中国石油大学(华东) | One kind driving photodetector and preparation method thereof based on ZnO nanorod/Si hetero-junctions certainly |
| CN114023838A (en) * | 2021-11-03 | 2022-02-08 | 宁波勤邦新材料科技有限公司 | High-reflection high-barrier solar cell back panel film and preparation method thereof |
| CN114023838B (en) * | 2021-11-03 | 2023-11-10 | 宁波勤邦新材料科技股份有限公司 | High-reflection high-barrier solar cell backboard film and preparation method thereof |
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