CN103950966A - Cu2O in chamfered octahedral structure, preparation method and application in preparing photocathode of solar battery - Google Patents
Cu2O in chamfered octahedral structure, preparation method and application in preparing photocathode of solar battery Download PDFInfo
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- CN103950966A CN103950966A CN201410193392.8A CN201410193392A CN103950966A CN 103950966 A CN103950966 A CN 103950966A CN 201410193392 A CN201410193392 A CN 201410193392A CN 103950966 A CN103950966 A CN 103950966A
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- deionized water
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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
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- 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 Cu2O in a chamfered octahedral structure, a preparation method and an application in preparing a photocathode of a solar cell, and belongs to the field of dye-sensitized solar cells. The preparation method comprises the following steps: sequentially adding cupric nitrate, sodium citrate, sodium carbonate and glucose into a deionized aqueous solution of polyvinylpyrrolidone under magnetic stirring; naturally cooling to room temperature after water bath, and oxidizing at room temperature; and centrifugally washing and then drying in the vacuum state to obtain the cuprous oxide material. The photocathode of the dye-sensitized solar cell is prepared by ethanol and the cuprous oxide material prepared to assemble the cell, and the photoelectric conversion efficiency is 0.42%.
Description
Technical field
The invention belongs to dye sensitization solar battery technical field, be specifically related to a kind of Cu of chamfering octahedral structure
2o, preparation method and in the application of preparing in dye sensitization solar battery photocathode.
Background technology
Energy problem is the matter of utmost importance of the current development of world economy of restriction, and sun power is inexhaustible as one, the natural green energy of pollution-free cleaning and become one of most promising energy.Research and most widely used solar cell are mainly that silicon is solar cell at present, but silicon is that battery raw material cost is high, complex manufacturing, it is limited that efficiency improves potentiality, the theoretical boundary of its photoelectric transformation efficiency is 30% to have limited its civil nature, is badly in need of the solar cell of developing low-cost.Switzerland scholar in 1991
publish an article Deng on Nature, a kind of novel solar cell taking dye sensitization titanium dioxide nanocrystalline film as light anode has been proposed, it has makes the advantages such as simple, with low cost, efficiency is high and the life-span is long, photoelectric transformation efficiency can reach more than 11% at present, therefore becomes the main direction of studying of solar cell of new generation.
P-type semiconductor oxide nanocrystalline film is the important component part of dye sensitization solar battery, and it is carrying the absorption of dyestuff, the transmission of electronics and to tasks such as incident scatterings of light.At present, P-type semiconductor material is applied to dye sensitization solar battery, is mainly the oxide compound of nickel, but due to the restriction of himself characteristic, the phototranstormation efficiency of nickel oxide is lower, therefore, has the Cu of higher electric transmission efficiency
2o material becomes the object that dye sensitization solar battery photocathode material is pursued.Main preparation method comprises: water-bath synthesis method, vapour deposition process, hydrolytic precipitation method etc.In dye sensitization solar battery, the photocathode material with larger electric transmission speed has prospect widely.
Summary of the invention
Technical problem to be solved by this invention is for above shortcomings in prior art, and a kind of Red copper oxide material and preparation method thereof is provided, and this preparation method is synthesized Red copper oxide should be used as the photocathode of dye sensitization solar battery.The Red copper oxide that the method makes is applied to field of dye-sensitized solar cells.
The preparation method who the invention provides a kind of Red copper oxide material, comprises the following steps:
1) take 1.60～1.70g Gerhardite, join in 10mL deionized water magnetic agitation 10～20min;
2) take 2.70～2.80g, tri-hydration Trisodium Citrates, join in 10mL deionized water magnetic agitation 10～20min;
3) take 3.0～3.10g anhydrous sodium carbonate, join in 10mL deionized water magnetic agitation 10～20min;
4) take 2.70g～2.80g glucose, join in 10mL deionized water magnetic agitation 10～20min;
5) take 1.0g～1.2g polyvinylpyrrolidone (PVP) and add in 170mL deionized water, magnetic agitation 10～20min; Then by step 1)～4) solution that obtains dropwise joins in the deionized water solution of polyvinylpyrrolidone successively, magnetic agitation 20min～30min;
6) by step 5) mixing solutions that obtains water-bath 100～130min under 60～90 DEG C, magnetic agitation;
7) mixing solutions after reaction is naturally cooled to room temperature, and at room temperature place and be oxidized for 36～60 hours;
8) reactant after above-mentioned Oxidation at room temperature is poured out, carried out centrifugally, centrifugation rate is 8000～15000 revs/min;
9) alternately washing is rear centrifugal respectively centrifugal after product to be used to deionized water and ethanol, respectively repeats 3～6 times; Centrifugal product after washing is put in 60～80 DEG C of vacuum drying ovens, dried taking-up in 5～10 hours, centrifugation rate is 8000～15000 revs/min, thereby obtains Red copper oxide material of the present invention.
Getting the each 0.1～0.2g of Red copper oxide material prepared by commercialization and the present invention joins in the ethanol of 1～1.5mL, magnetic agitation 10～20min, get the ethanolic soln of 20～25 μ L Red copper oxide with liquid-transfering gun, vertically drop in respectively clean and interior (treating processes is: according to deionized water by adhesive tape FTO after treatment (the tindioxide sheet glass of fluorine doping) wafer pockets, ethanol, acetone, the order of ethanol, clean FTO, after rubber pipette bulb dries up, put up groove with the square that seamless adhesive tape is 0.5cm～0.6cm in FTO surrounding according to the length of side, available vernier caliper measurement), strike off fast with blade, FTO substrate after blade coating is put into 60～80 DEG C of vacuum drying ovens, after 2～3 hours, take out, remove adhesive tape, thereby obtain Red copper oxide photocathode film.
The invention provides a kind of Red copper oxide material, it is prepared by aforesaid method.
Red copper oxide material provided by the invention can be as the photocathode material of dye sensitization solar battery.
Beneficial effect of the present invention: the Red copper oxide material that this preparation method's efficiency is high, cost is low, method is simple, experimental period is short, make can be applied to dye sensitization solar battery and as photocathode, the photoelectric transformation efficiency of the dye sensitization solar battery being assembled into is 0.42%.
Brief description of the drawings
Fig. 1: Red copper oxide material (a) prepared by the present invention and be prepared into the scanning electron microscope picture of 2000 times of the amplifications of photocathode film (b);
Fig. 2: the XRD figure of Red copper oxide material prepared by the present invention; Its 2 θ is respectively 29.65,36.46,42.43,61.64,73.78 and 77.76, and known from standard card is ruby copper.
Fig. 3: the I-V curve of applying dye sensitization solar battery prepared by commercial Red copper oxide and Red copper oxide of the present invention.
From the embedded figure of Fig. 1 (a), above-mentioned Red copper oxide material all has the shape of octahedron of chamfering feature; By the curve of Fig. 3, Red copper oxide material is assembled into dye sensitization solar battery as photocathode, can obtain respectively as calculated 0.17% and 0.42% electricity conversion.Therefore the Red copper oxide material that prepared by Red copper oxide material, especially the present invention can be used as the photocathode film of dye sensitization solar battery.
Embodiment
Embodiment 1:
Prepare Red copper oxide material by water-bath synthesis method, detailed process is as follows
1) take 1.64g Gerhardite (Beijing fine chemistry company limited), join in 10mL deionized water magnetic agitation 10min;
2) take 2.76g tri-hydration Trisodium Citrates (Beijing fine chemistry company limited), join in 10mL deionized water magnetic agitation 10min;
3) take 3.09g anhydrous sodium carbonate (Beijing fine chemistry company limited), join in 10mL deionized water magnetic agitation 10min;
4) take 2.78g glucose (Beijing fine chemistry company limited), join in 10mL deionized water magnetic agitation 10min;
5) taking 0.9g polyvinylpyrrolidone (PVP) joins in 170mL deionized water, magnetic agitation 10min, by step 1), 2), 3), 4) solution dropwise join successively in order in the deionized water solution of polyvinylpyrrolidone (PVP), magnetic agitation 30min;
6) by step 5) mixing solutions put into 80 DEG C of water-baths, water-bath 120min under magnetic agitation;
7) by step 6) reacted mixing solutions naturally cools to room temperature, and is at room temperature oxidized 48 hours;
8) by step 7) reactant after Oxidation at room temperature pours out, and carries out centrifugally operated, and centrifugation rate is 10000 revs/min;
9) centrifugal product is with centrifugal after deionized water wash, then with centrifugal after washing with alcohol; Repeat said process (centrifugal after deionized water wash, then with centrifugal after washing with alcohol) 6 times.The product obtaining after for the last time centrifugal is put in 80 DEG C of vacuum drying ovens, dried taking-up in 8 hours, thereby obtain preparing Red copper oxide material by water-bath synthesis method.
10) clean FTO (the tindioxide sheet glass of fluorine doping) according to the order of deionized water, ethanol, acetone, ethanol, rubber pipette bulb dries up after FTO, puts up groove (available vernier caliper measurement) with the square that seamless adhesive tape is 0.5cm*0.5cm in FTO surrounding according to area.
Getting the each 0.1g of Red copper oxide material (commercial and preparation) adds in the ethanol of 1mL, magnetic agitation 10min, get the Red copper oxide ethanolic soln of 20 μ L with liquid-transfering gun, vertically drop in and used in adhesive tape FTO groove after treatment, strike off fast with blade, the FTO after blade coating is put into 80 DEG C of vacuum drying ovens, dry taking-up in 2 hours, remove adhesive tape, thereby obtain Red copper oxide photocathode film.
Table 1: the performance data table of Red copper oxide prepared by commercial Red copper oxide and the present invention
Dye sensitization solar battery of the present invention is sandwich structure, can be on the basis of above-mentioned photocathode film reference " B.O ' Regan, M.
nature, 1991,353,737-740. " assembled battery.
Table 1 calculates by I-V test curve:
Open circuit voltage: at certain temperature and radiation parameter, energy photovoltaic is the both end voltage under open circuit situation in zero load, conventionally uses V
ocrepresent.
Short-circuit current: at certain temperature and radiation parameter, energy photovoltaic is the outward current of 1 o'clock at the voltage at two ends, conventionally uses J
screpresent.
Packing factor: the ratio of the peak power of solar cell and open circuit voltage and short-circuit current product, conventionally use FF, FF=I
mv
m/ I
scv
oc, packing factor is an important parameter that characterizes solar cell properties quality.
Optimum operating voltage: the corresponding voltage of maximum power point on solar cell current voltage characteristic, conventionally use V
mrepresent.
Recommended current: the corresponding electric current of maximum power point on solar cell current voltage characteristic, conventionally use J
mrepresent.
Photoelectric transformation efficiency: be subject to illumination solar cell peak power and the per-cent that incides the whole radiation powers on this solar cell.Conventionally use n=V
mi
m/ A
tp
in, wherein A
tfor the total area of solar cell, can obtain by kind of calliper P
infor unit surface sun incident optical power, be calibrated to 100% by standard photovoltaic note.
As can be known from Table 1, Red copper oxide material can be used as photocathode very thin films material, and the dye sensitization solar battery being assembled into homemade Red copper oxide material is compared with commercial Red copper oxide material, has higher electricity conversion, and its value is 0.42%.
Claims (7)
1. a preparation method for Red copper oxide material, its step is as follows:
1), in the deionized water solution of polyvinylpyrrolidone, under magnetic agitation, add successively cupric nitrate, Trisodium Citrate, sodium carbonate and glucose;
2) by above-mentioned mixing solutions water-bath 100～130min under 60～90 DEG C, magnetic agitation;
3) mixing solutions after reaction is naturally cooled to room temperature, and at room temperature place and be oxidized for 36～60 hours;
4) reactant after above-mentioned Oxidation at room temperature is poured out, carried out centrifugal;
5) centrifugal after product is alternately centrifugal respectively after washing with deionized water and ethanol, centrifugal product is placed under 60～80 DEG C of conditions to vacuum drying 5～10 hours, thereby obtains Red copper oxide material.
2. the preparation method of Red copper oxide material as claimed in claim 1, is characterized in that: cupric nitrate, Trisodium Citrate, sodium carbonate and glucose are to be first mixed with deionized water solution, then join in the deionized water solution of polyvinylpyrrolidone.
3. the preparation method of Red copper oxide material as claimed in claim 1, is characterized in that: be to take 1.60～1.70g Gerhardite, join in 10mL deionized water that magnetic agitation 10～20min obtains the deionized water solution of cupric nitrate; Take 2.70～2.80g, tri-hydration Trisodium Citrates, join in 10mL deionized water, magnetic agitation 10～20min, obtains the deionized water solution of Trisodium Citrate; Take 3.0～3.10g anhydrous sodium carbonate, join in 10mL deionized water, magnetic agitation 10～20min, obtains the deionized water solution of sodium carbonate; Take 2.70g～2.80g glucose, join in 10mL deionized water, magnetic agitation 10～20min, obtains the deionized water solution of glucose; Take 1.0g～1.2g polyvinylpyrrolidone and add in 170mL deionized water, magnetic agitation 10～20min, obtains the deionized water solution of polyvinylpyrrolidone.
4. the preparation method of Red copper oxide material as claimed in claim 1, is characterized in that: by step 1) mixing solutions magnetic agitation 20min～30min after carry out again water-bath.
5. the preparation method of Red copper oxide material as claimed in claim 1, is characterized in that: step 4) in centrifugation rate be 8000～15000 revs/min.
6. a Red copper oxide material of being prepared by any one method of claim 1～5.
7. Red copper oxide material claimed in claim 6 is for the preparation of the photocathode of dye sensitization solar battery.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261457A (en) * | 2014-09-28 | 2015-01-07 | 哈尔滨工业大学 | Preparation method of micro-nano cuprous oxide particles with controllable morphology and size |
| CN105152199A (en) * | 2015-08-06 | 2015-12-16 | 上海应用技术学院 | Preparation method of tetradecahedral cuprous oxide nanoparticle |
| CN108796532A (en) * | 2017-05-03 | 2018-11-13 | 天津大学 | Nickel oxide-cuprous oxide homojunction photocathode and preparation method thereof and the application in photocatalysis |
| CN111285393A (en) * | 2020-03-29 | 2020-06-16 | 南京工业大学 | Visible light driven Cu with controllable appearance2O micro-nano motor and preparation process thereof |
-
2014
- 2014-05-08 CN CN201410193392.8A patent/CN103950966A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| YONGMING SUI ET AL.: "Synthesis of Cu2O Nanoframes and Nanocages by Selective Oxidative Etching at Room Temperature", 《ANGEW. CHEM. INT. ED.》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261457A (en) * | 2014-09-28 | 2015-01-07 | 哈尔滨工业大学 | Preparation method of micro-nano cuprous oxide particles with controllable morphology and size |
| CN105152199A (en) * | 2015-08-06 | 2015-12-16 | 上海应用技术学院 | Preparation method of tetradecahedral cuprous oxide nanoparticle |
| CN108796532A (en) * | 2017-05-03 | 2018-11-13 | 天津大学 | Nickel oxide-cuprous oxide homojunction photocathode and preparation method thereof and the application in photocatalysis |
| CN111285393A (en) * | 2020-03-29 | 2020-06-16 | 南京工业大学 | Visible light driven Cu with controllable appearance2O micro-nano motor and preparation process thereof |
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Application publication date: 20140730 |