CN103450701A - Natural dyestuff sensitizer on plateau for dye-sensitized solar cell - Google Patents
Natural dyestuff sensitizer on plateau for dye-sensitized solar cell Download PDFInfo
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- CN103450701A CN103450701A CN2013103995286A CN201310399528A CN103450701A CN 103450701 A CN103450701 A CN 103450701A CN 2013103995286 A CN2013103995286 A CN 2013103995286A CN 201310399528 A CN201310399528 A CN 201310399528A CN 103450701 A CN103450701 A CN 103450701A
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- plateau
- natural dyestuff
- dye
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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
- Y02E10/542—Dye sensitized solar cells
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Abstract
The invention relates to the technical field of a solar cell, and particularly relates to a natural dyestuff sensitizer on a plateau for a dye-sensitized solar cell. An ingredient of the sensitizer disclosed by the invention is plant anthocyanin which contains a plurality of -OHs in a molecular structure and can be adsorbed on a TiO2 film in a chemical adsorption manner. By adopting the natural dyestuff sensitizer, the geographic features of high elevation of the Tibet plateau and long ultraviolet ray irradiation time are fully utilized; a Tibet plateau plant containing the anthocyanin is selected; the natural dyestuff sensitizer on the plateau for the dye-sensitized solar cell is extracted from the Tibet plateau plant. The natural dyestuff sensitizer on the plateau has the advantages of being simple in extraction process, friendly to the environment, low in cost and the like, and has a better market development prospect; meanwhile, a revenue channel is also provided for local farmers. Therefore, the natural dyestuff sensitizer has good economic benefits.
Description
Technical field
The present invention relates to technical field of solar batteries, specifically relate to the plateau natural dyestuff sensitizing agent of dye sensitization solar battery.
Background technology
Dye sensitization solar battery (Dye-sensitized solar cell, be called for short DSC), be again " Gratzel " battery, be 1991 the federal science and engineering of Lausanne, SUI (EPFL) a kind of high efficiency solar battery of inventing of MGratzel professor's team.Not only manufacture craft is very simple, and does not need pyroprocessing and the high vacuum processing of expensive power consumption again, so the production cost of device is very cheap, according to estimates 1 ∕ 5 left and right of silica-based solar cell only.The theoretical transformation efficiency of DSC is very same, can reach 33%, surpasses the theoretical transformation efficiency of silicon single crystal based solar battery.Based on above reason, DSC also thereby be considered to strong rival and the replacer of traditional silicon base battery, is attracting increasing research enthusiasm at Global Academy and industry member.
Dye sensitization solar battery (DSC) is a kind of battery that simulating plant photosynthesis carries out opto-electronic conversion, and wherein dye sensitizing agent is the key components of DSC, and it is adsorbed in nanoporous TiO
2the particle of film, absorb sunlight and produce photoelectron, and photoelectron is injected into to TiO
2conduction band in.Dye sensitizing agent as DSC need to have good absorptive character to sunlight, with can with TiO
2the group (as hydroxyl, carboxyl, phosphate etc.) of chemisorption occurs, can be to TiO
2inject electronics and reasonable stability etc.At present people have synthesized nearly thousand kinds of dyestuffs, wherein best with the photoelectric properties of the dipyridyl title complex of ruthenium, but, because its cost compare is high, synthetic difficulty, limited its large-scale use to a certain extent.
Summary of the invention
The objective of the invention is to solve the complicated process of preparation of prior art dye sensitization solar battery dye sensitizing agent used, serious and the high in cost of production problem of environmental pollution, provide a kind of have with low cost, with the natural dyestuff sensitizing agent of the plateau for dye sensitization solar battery of environmental friendliness and the characteristics such as preparation technology is simple.
A kind of plateau for dye sensitization solar battery of the present invention natural dyestuff sensitizing agent is achieved by following technical proposals: described sensitizing agent composition is that molecular structure contains, and a plurality of-OH can be adsorbed on TiO in the chemisorption mode
2the Anthocyanin class of film, its molecular structural formula is as follows:
.
A kind of plateau for dye sensitization solar battery of the present invention natural dyestuff sensitizing agent has following beneficial effect compared with prior art: the present invention provides the plateau natural dyestuff sensitizing agent for dye sensitization solar battery first, with existing synthetic dyestuff sensitizing agent, compare, there is the preparation method simple, with characteristics such as environmental friendliness, cost are very cheap; Because the natural dyestuff sensitizing agent is directly to extract from plant, the process that obtains dyestuff is relatively simple, and Qinghai-Tibet Platean has very abundant solar energy resources, and this is because it has the significantly geographical features such as height above sea level, ultraviolet irradiation time length.Plant is in process of growth, and the time of exposing to sunlight is longer, and the pigment be rich in plant materials is more.So to replacing the synthetic dyestuff sensitizing agent, improving the over-all properties of dye sensitization solar battery and reduce the battery cost, plateau of the present invention natural dyestuff sensitizing agent promote the industrialization tool to be of great significance.In addition, the exploitation of plateau plant can be encouraged again the suitable plantation plateau plant of Qinghai-Tibet peasants and herdsmen, for it provides an extra earning channel, has good economic benefit.
Embodiment
Below in conjunction with embodiment, a kind of plateau for dye sensitization solar battery of the present invention natural dyestuff sensitizing agent technical scheme is further described.
A kind of plateau for dye sensitization solar battery natural dyestuff sensitizing agent is characterized in that: described sensitizing agent composition is to contain a plurality of-OH in molecular structure can be adsorbed on TiO in the chemisorption mode
2the Anthocyanin class of film, its molecular structural formula is as follows:
.
Plateau for dye sensitization solar battery according to claim 1 natural dyestuff sensitizing agent is characterized in that: described plant is to be grown in the petal that the long Flower of Chinese Globeflower of ultraviolet irradiation time, lattice mulberry, Rose are accepted in Qinghai-Tibet Platean.
The preparation method of a kind of plateau for dye sensitization solar battery natural dyestuff sensitizing agent, it is characterized in that: described method comprises the steps:
1) petal drying and crushing step will be plucked from Qinghai-Tibet red petal and be cleaned and to dry in the shade with clear water, be placed on dry 15min in the air dry oven of 50 ℃, pulverize, and obtain red petal powder standby;
2) red petal powder step 1) obtained is placed on the ethanolic soln of the HCL of 1mol ∕ L, keeps in Dark Place and soaked overnight, filters the stoste that obtains the plateau plant pigment;
3) by step 2) the plateau plant pigment stoste that obtains is while being concentrated into 1 ∕ 2 of original solution, and the pH value of utilizing the ethanolic soln of 1mol ∕ L NaOH to regulate filtrate approaches neutral, now below solution, occurs precipitating on a small quantity;
4) when a small amount of precipitation appears in step 3), carry out fast centrifugally, get clear liquid underpressure distillation to the solvent on upper strata and remove fully, obtain bolarious anthocyanidin;
5) the pH value of utilizing HCL to regulate ethanolic soln, to pH=5, is now utilized this solution to dissolve and is extracted the anthocyanidin obtained, and obtains assembling the needed plateau of plateau natural dye-sensitized solar cell natural dyestuff sensitizing agent.
Embodiment 1.
Plateau natural dyestuff sensitizing agent preparation method for dye sensitization solar battery:
Step 1: will pluck from the petal of Qinghai-Tibet Flower of Chinese Globeflower extraction, and with clear water, clean and dry in the shade, and then be placed on dry 15min in the air dry oven of 50 ℃, and pulverize, and obtain red petal powder standby;
Step 2: the Flower of Chinese Globeflower petal powder of 0.5 gram is placed in the ethanolic soln of HCL of 1mol ∕ L of 50ml, keeps in Dark Place and soaked overnight, temperature remains on 35 ℃, then utilizes the suction funnel suction filtration to obtain the stoste of Flower of Chinese Globeflower pigment;
Step 3: utilize Rotary Evaporators, temperature is between 25 ℃-40 ℃, when Flower of Chinese Globeflower pigment stoste is concentrated into 1 ∕ 2 of original solution, the pH value of utilizing the ethanolic soln of the NaOH of 1mol ∕ L to regulate filtrate approaches neutral, now a small amount of green precipitate of appearance below solution;
Step 4: current when being settled out, carry out fast centrifugally, get clear liquid underpressure distillation to the solvent on upper strata and remove fully, obtain bolarious Flower of Chinese Globeflower pigment powder;
Step 5: utilize HCL to regulate the pH value of ethanolic soln to pH=5, the ethanolic soln 5ml dissolving step 4 that measures pH=5 extracts the Flower of Chinese Globeflower pigment powder 0.05g obtained, and obtains assembling the needed plateau of plateau natural dye-sensitized solar cell natural dyestuff quick in Flower of Chinese Globeflower pigment powder is dissolved in the ethanolic soln of pH=5 fully.
Claims (3)
1. the natural dyestuff sensitizing agent of the plateau for dye sensitization solar battery, it is characterized in that: described sensitizing agent composition is to contain a plurality of-OH in molecular structure can be adsorbed on TiO in the chemisorption mode
2the Anthocyanin class of film, its molecular structural formula is as follows:
.
2. the plateau for dye sensitization solar battery according to claim 1 natural dyestuff sensitizing agent is characterized in that: described plant is to be grown in the petal that the long Flower of Chinese Globeflower of ultraviolet irradiation time, lattice mulberry, Rose are accepted in Qinghai-Tibet Platean.
3. the preparation method of the natural dyestuff sensitizing agent of the plateau for dye sensitization solar battery, it is characterized in that: described method comprises the steps:
1) petal drying and crushing step will be plucked from Qinghai-Tibet red petal and be cleaned and to dry in the shade with clear water, be placed on dry 15min in the air dry oven of 50 ℃, pulverize, and obtain red petal powder standby;
2) red petal powder step 1) obtained is placed on the ethanolic soln of the HCL of 1mol ∕ L, keeps in Dark Place and soaked overnight, filters the stoste that obtains the plateau plant pigment;
3) by step 2) the plateau plant pigment stoste that obtains is while being concentrated into 1 ∕ 2 of original solution, and the pH value of utilizing the ethanolic soln of 1mol ∕ L NaOH to regulate filtrate approaches neutral, now below solution, occurs precipitating on a small quantity;
4) when a small amount of precipitation appears in step 3), carry out fast centrifugally, get clear liquid underpressure distillation to the solvent on upper strata and remove fully, obtain bolarious anthocyanidin;
5) the pH value of utilizing HCL to regulate ethanolic soln, to pH=5, is now utilized this solution to dissolve and is extracted the anthocyanidin obtained, and obtains assembling the needed plateau of plateau natural dye-sensitized solar cell natural dyestuff sensitizing agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103995286A CN103450701A (en) | 2013-09-05 | 2013-09-05 | Natural dyestuff sensitizer on plateau for dye-sensitized solar cell |
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|---|---|---|---|
| CN2013103995286A CN103450701A (en) | 2013-09-05 | 2013-09-05 | Natural dyestuff sensitizer on plateau for dye-sensitized solar cell |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252082A (en) * | 2016-08-02 | 2016-12-21 | 北京理工大学 | A kind of natural dye-sensitized solar cell device and preparation method thereof |
| CN106280545A (en) * | 2016-08-05 | 2017-01-04 | 宁波金特信钢铁科技有限公司 | A kind of preparation method of side chain near-infrared organic photosensitive dyestuff |
| CN106349736A (en) * | 2016-08-05 | 2017-01-25 | 雷春生 | Preparation method of pure organic photosensitive dye |
| CN107312354A (en) * | 2017-06-08 | 2017-11-03 | 青海大学 | A kind of extraction of natural dye sensitizer lycium ruthenicum pigment and its acylated method |
| CN107383933A (en) * | 2017-08-24 | 2017-11-24 | 青海民族大学 | A kind of ultraviolet light response natural dye and its extracting method and the application in DSSC |
| CN108794792A (en) * | 2018-06-27 | 2018-11-13 | 青海大学 | PVC modified materials and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556150A (en) * | 2004-01-12 | 2004-12-22 | 四川大学 | Extraction and separation of proto flower haematochrome and preparation method of its derivatives |
-
2013
- 2013-09-05 CN CN2013103995286A patent/CN103450701A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556150A (en) * | 2004-01-12 | 2004-12-22 | 四川大学 | Extraction and separation of proto flower haematochrome and preparation method of its derivatives |
Non-Patent Citations (1)
| Title |
|---|
| N.GOKILAMANI等: "Dye-sensitized solar cells with natural dyes extracted from rose petals", 《J MATER SCI: MATER ELAECTRON》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252082A (en) * | 2016-08-02 | 2016-12-21 | 北京理工大学 | A kind of natural dye-sensitized solar cell device and preparation method thereof |
| CN106280545A (en) * | 2016-08-05 | 2017-01-04 | 宁波金特信钢铁科技有限公司 | A kind of preparation method of side chain near-infrared organic photosensitive dyestuff |
| CN106349736A (en) * | 2016-08-05 | 2017-01-25 | 雷春生 | Preparation method of pure organic photosensitive dye |
| CN107312354A (en) * | 2017-06-08 | 2017-11-03 | 青海大学 | A kind of extraction of natural dye sensitizer lycium ruthenicum pigment and its acylated method |
| CN107383933A (en) * | 2017-08-24 | 2017-11-24 | 青海民族大学 | A kind of ultraviolet light response natural dye and its extracting method and the application in DSSC |
| CN108794792A (en) * | 2018-06-27 | 2018-11-13 | 青海大学 | PVC modified materials and preparation method thereof |
| CN108794792B (en) * | 2018-06-27 | 2021-02-12 | 青海大学 | PVC modified material and preparation method thereof |
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Application publication date: 20131218 |