CN102592840A - Quantum-dot sensitized oxide/carbon nanotube composite fiber solar cell photo-anode - Google Patents
Quantum-dot sensitized oxide/carbon nanotube composite fiber solar cell photo-anode Download PDFInfo
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Abstract
The invention discloses a quantum-dot sensitized oxide/carbon nanotube composite fiber solar cell photo-anode, producing method and application thereof. The fiber solar cell photo-anode is composed of oxide/carbon nanotube composite fibers and quantum-dot photosensitizers, wherein the oxide/carbon nanotube composite fibers are composites of oxides and carbon nanotube composite fibers. Specifically, the carbon nanotube composite fibers which serve as matrixes are subjected to acid treatment, subjected to vacuum impregnation in a precursor solution containing titanium, zinc or tin, taken out and then subjected to drying and heat treatment to obtain oxide/carbon nanotube composite fibers. Finally, the quantum-dot photosensitizers are used for sensitizing composite fibers to produce the quantum-dot sensitized oxide/carbon nanotube composite fiber solar cell photo-anode. According to the quantum-dot sensitized oxide/carbon nanotube composite fiber solar cell photo-anode, fiber solar cell photo-anodes can be produced, and enhancement of the photoelectric conversion efficiency of solar cells by carbon nanotubes is achieved, so that synchronous breakthrough in terms of the structure and the function is achieved.
Description
Technical field
The present invention relates to a kind of quantum dot sensitized oxide/carbon nano tube composite fibre solar battery photoanode and preparation method thereof and application of flexible fiber shape, belong to technical field of solar cells.
Background technology
Many advantages such as the flexible fiber solar cell is bent owing to having, can twine, can weave can satisfy fields such as space flight and aviation, weaponry, energy saving building to the new demand that solar cell proposes, and have become one of focus of photovoltaic research.In miscellaneous solar cell, (Quantum-dots Sensitized Solar Cells is QDs-SSCs) because the structure and material characteristics of itself are prone to realize fibrillatable to quantum dot sensitized solar cell.What is more important, this solar cell has advantages such as electricity conversion height, preparation technology is simple, the prices of raw and semifnished materials are cheap.Therefore, prepare quantum dot sensitized fiber solar cell and have bigger scientific meaning and practical value.In quantum dot sensitized solar cell, light anode (comprising conductor oxidate and quantum dot light sensitizer) is the core component that produces light induced electron, therefore is made into the key technology that filamentary structure is whole research.
In quantum dot sensitized solar cell field, except above-mentioned preparation fiber optic anode, the electricity conversion that improves battery also is one of focus of research.In traditional oxide nanocrystalline perforated membrane light anode, light induced electron will just can be transmitted to conducting base through one section long path, and is as shown in Figure 1.This has just increased electronics by compound probability, further improves thereby hindered battery efficiency ground.Recently people discover; With CNT (Carbon Nanotubes; CNTs) join in the light anode, can make light induced electron conduct to external circuit rapidly, thereby significantly reduced electronics by compound probability through CNT; Significantly improve the photoelectricity conversion performance of solar cell, as shown in Figure 2.
The present invention is with carbon nano-tube fibre (Carbon Nanotube Yarns; CNTYs) prepare quantum dot sensitized oxide/carbon nano tube composite fibre solar battery photoanode for matrix; Preparation fiber solar battery photoanode is combined with the electricity conversion that utilizes CNT to strengthen battery, realized structure-function integration.
Summary of the invention
The object of the present invention is to provide a kind of quantum dot sensitized oxide/carbon nano tube composite fibre solar battery photoanode and preparation method thereof and application.
The object of the invention is achieved through following technical proposals:
Quantum dot sensitized oxide/carbon nano tube composite fibre solar battery photoanode is made up of oxide/carbon nano tube composite fibre and quantum dot light sensitizer.
Said oxide/carbon nano tube composite fibre is made up of oxide and carbon nano-tube fibre.Wherein, said oxide is titanium oxide, zinc oxide or tin oxide.
Said quantum dot light sensitizer is cadmiumsulfide quantum dot, CdSe quantum dots, cadmium telluride quantum dot, zinc sulphide quantum dot, zinc selenide quantum dot, zinc telluride quantum dot, mercuric sulphide quantum dot, mercury selenide quantum dot or tellurium mercury quantum dot.
The present invention further discloses a kind of method for preparing quantum dot sensitized oxide/carbon nano tube composite fibre solar battery photoanode, carry out according to following step:
(1) places the acid solution of uniform temperature to handle certain hour carbon nano-tube fibre, take out the back and use deionized water rinsing;
(2) metallo-organic compound with a certain amount of titaniferous, zinc or tin is dissolved in organic solvent, and with the pH value of acetate regulation system, is configured to precursor solution;
(3) precursor solution that the acid treatment carbon nano-tube fibre that step (1) is obtained is put into step (2) preparation carries out vacuum impregnation.After dipping finishes product is taken out, after drying, obtain oxide gel/carbon nano tube composite fibre;
(4) with oxide gel/carbon nano tube composite fibre heat treatment under the mixed atmosphere of oxygen/argon of step (3) preparation, obtain oxide/carbon nano tube composite fibre;
(5) oxide/carbon nano tube composite fibre with step (4) preparation immerses in the hexane solution of certain density quantum dot light sensitizer; Under the condition of normal temperature lucifuge, keep a period of time, finally make quantum dot sensitized oxide/carbon nano tube composite fibre solar battery photoanode.
In the said step (1), said acid solution is sulfuric acid, nitric acid or aqueous solution of hydrochloric acid, and the weight percent concentration of acid solution is 50-80%, and temperature is 50-80 ℃, and the processing time is 60-90min.
In the step of the present invention (2), the metallo-organic compound of said titaniferous, zinc or tin is: tetraethyl titanate, butyl titanate, isopropyl titanate, isopropyl titanate, titanium acetylacetone, zinc acetate, zinc stearate, zinc methide, zinc acetylacetonate, PZ, tributyl ethene tin, hexamethyl ethyl tin, tetrem thiazolinyl tin, dibutyltin diacetate or bis-acetylacetonate base dibutyl tin; Said organic solvent is alcohols or the organic solvent of ketone that is in a liquid state under the normal temperature, for example: methyl alcohol, ethanol, ethylene glycol, propyl alcohol, isopropyl alcohol, butanols, acetone, butanone, acetylacetone,2,4-pentanedione, methylisobutylketone; Metal-organic weight concentration is 1.0-5.0mg/ml in the said precursor solution; The pH value of said precursor solution is 3-5.
In the step of the present invention (3), vacuum-impregnated air pressure is 100-500Pa, and the time is 30-60min.
In the step of the present invention (4), the heat treatment in the mixed atmosphere of oxygen/argon of oxide gel/carbon nano tube composite fibre, the time is 90-120min, temperature is 300-450 ℃, oxygen: the mol ratio of argon gas is 1:4-8.
In the step of the present invention (5), said quantum dot light sensitizer is cadmiumsulfide quantum dot, CdSe quantum dots, cadmium telluride quantum dot, zinc sulphide quantum dot, zinc selenide quantum dot, zinc telluride quantum dot, mercuric sulphide quantum dot, mercury selenide quantum dot or tellurium mercury quantum dot; The weight concentration of quantum dot is 0.1-0.5mg/ml in the said quantum dot light sensitizer solution, and dip time is 6-12h.
The present invention further discloses the application of quantum dot sensitized oxide/carbon nano tube composite fibre solar battery photoanode aspect preparation fiber solar cell and enhancing cell photoelectric transformation efficiency.Experimental result shows: the sodium sulfide solution that with the weight concentration is 80mg/ml is an electrolyte; Adopting three-electrode method (quantum dot sensitized titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of each fiber optic anode is more than 3.00%, explains that there is the major application prospect in its field at the quantum dot sensitized fiber solar cell of preparation.
The good effect that quantum dot sensitized oxide/the carbon nano tube composite fibre solar battery photoanode is compared with prior art had disclosed by the invention is:
The present invention has adopted the matrix of carbon nano-tube fibre as preparation fiber solar battery photoanode.Used carbon nano-tube fibre is a kind of novel carbon nano-tube macroscopic material that developed recently gets up, and is obtained by the carbon nano pipe array spinning, and the CNT in the fiber is along the fiber axially-aligned.With its matrix as quantum dot sensitized fiber solar cell, have following advantage: (1) has good flexibility and intensity, higher electricity are led, for preparation fiber solar cell provides desirable matrix; (2) CNT in the fiber can effectively strengthen the electricity conversion of battery.
Description of drawings:
Fig. 1 is the transmission path sketch map of light induced electron in the nanocrystalline porous film light of the conventional oxide anode; Wherein 1: conducting base; 2: oxide nanocrystalline; 3: light induced electron;
Fig. 2 is the transmission path sketch map of the light induced electron behind the adding CNT in the light anode; Wherein 1 is conducting base; 2: oxide nanocrystalline; 3: light induced electron; 4: CNT.
Embodiment
Further specify technical scheme of the present invention below in conjunction with specific embodiment.The carbon nano-tube fibre reference literature Li Qinwen that adopts in the embodiment of the invention, Zhang Xiefei, DePaula Raymond F. et al. Advanced Materials, 2006,18, the method for putting down in writing among the 3160-3163. makes.What explain especially is that the used all ingredients of the present invention, gas all have commercially available.
The reference implementation example
At first, adopt ion beam assisted deposition on silicon chip, to prepare the thick iron film of one deck 1.0nm, as the catalyst of synthesizing carbon nanotubes array.Secondly, with the silicon chip that the is coated with the iron film quartzy stove of the tubular type stage casing that to put into a bore be 2.5cm, and furnace temperature risen to 750 ℃.Once more, prepare carbon nano pipe array as carrier gas, ethene as carbon source with argon gas/hydrogen gas mixture (mol ratio is 94:6).Be specially argon gas/hydrogen gas mixture, ethene are all injected the quartzy stove of tubular type with the flow velocity of 120sccm, highly be about the carbon nano pipe array of 5 μ m behind the lasting 1h of reaction.At last, from the carbon nano pipe array that makes, spin carbon nano-tube fibre, wherein to spin a rotating speed be 2400 rpm, spin speed is 3cm/min.
Need to prove; Though for example many factors such as iron film thickness, reaction temperature, carrier gas flux, carbon source flow all have certain influence to the spinning of carbon nano pipe array and follow-up fiber, do not influence the acquisition of final carbon nano-tube fibre and the preparation of follow-up battery.
Preparation embodiment
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make cadmium selenide quantum sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.20%.
(1) to put into 65 ℃, weight percent concentration be that 65% aqueous solution of nitric acid is handled 75min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.10%.
(1) to put into 80 ℃, weight percent concentration be that 80% aqueous hydrochloric acid solution is handled 60min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.19%.
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 300mg isopropyl titanate is dissolved in the 100ml isopropyl alcohol, and to use the pH value of acetate regulation system be 4 that being configured to weight concentration is the titanium precursor liquid solution of 3.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.31%.
Embodiment 5
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 500mg titanium acetylacetone is dissolved in the 100ml acetylacetone,2,4-pentanedione, and to use the pH value of acetate regulation system be 5 that being configured to weight concentration is the titanium precursor liquid solution of 5.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.41%.
Embodiment 6
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg zinc stearate is dissolved in the 100ml methyl alcohol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the zinc precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the zinc precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains zinc oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of zinc oxide gel/carbon nano tube composite fibre, obtain zinc oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) zinc oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make CdSe quantum dots sensitized zinc oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitized zinc oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 4.20%.
Embodiment 7
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 300mg PZ is dissolved in the 100ml methylisobutylketone, and to use the pH value of acetate regulation system be 4 that being configured to weight concentration is the zinc precursor liquid solution of 3.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the zinc precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains zinc oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of zinc oxide gel/carbon nano tube composite fibre, obtain zinc oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) zinc oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make CdSe quantum dots sensitized zinc oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitized zinc oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.09%.
Embodiment 8
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 500mg zinc methide is dissolved in the 100ml propyl alcohol, and to use the pH value of acetate regulation system be 5 that being configured to weight concentration is the zinc precursor liquid solution of 5.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the zinc precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains zinc oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of zinc oxide gel/carbon nano tube composite fibre, obtain zinc oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) zinc oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make CdSe quantum dots sensitized zinc oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitized zinc oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 4.20%.
Embodiment 9
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) 100mg tributyl ethene tin is dissolved in the 100ml ethylene glycol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the tin precursor solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the tin precursor solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains tin oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of tin oxide gel/carbon nano tube composite fibre, obtain the tin dioxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) the tin dioxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make CdSe quantum dots sensitization tin dioxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization tin dioxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.30%.
Embodiment 10
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) 300mg bis-acetylacetonate base dibutyl tin is dissolved in the 100ml butanone, and to use the pH value of acetate regulation system be 4 that being configured to weight concentration is the tin precursor solution of 3.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the tin precursor solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains tin oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of tin oxide gel/carbon nano tube composite fibre, obtain the tin dioxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) the tin dioxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make CdSe quantum dots sensitization tin dioxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization tin dioxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.22%.
Embodiment 11
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 500mg dibutyltin diacetate is dissolved in the 100ml acetone, and to use the pH value of acetate regulation system be 5 that being configured to weight concentration is the tin precursor solution of 5.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the tin precursor solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains tin oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of tin oxide gel/carbon nano tube composite fibre, obtain the tin dioxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) the tin dioxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make CdSe quantum dots sensitization tin dioxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization tin dioxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.29%.
Embodiment 12
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 300Pa, and the time is 45min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make cadmium selenide quantum sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.56%.
Embodiment 13
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 500Pa, and the time is 60min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make cadmium selenide quantum sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 4.20%.
Embodiment 14
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 105min, and temperature is 375 ℃, oxygen: the mol ratio of argon gas is 1:6;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make cadmium selenide quantum sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.07%.
Embodiment 15
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 120min, and temperature is 300 ℃, oxygen: the mol ratio of argon gas is 1:8;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.1mg/ml; Under the condition of normal temperature lucifuge, keep 12h, finally make cadmium selenide quantum sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.27%.
Embodiment 16
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.3mg/ml; Under the condition of normal temperature lucifuge, keep 9h, finally make cadmium selenide quantum sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.30%.
Embodiment 17
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the CdSe quantum dots normal hexane solution of 0.5mg/ml; Under the condition of normal temperature lucifuge, keep 6h, finally make cadmium selenide quantum sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (CdSe quantum dots sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.51%.
Embodiment 18
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the zinc sulphide quantum dot normal hexane solution of 0.3mg/ml; Under the condition of normal temperature lucifuge, keep 9h, finally make zinc sulphide quantum sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (the quantum dot sensitized titanium oxide/carbon nano tube composite fibre of zinc sulphide be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.25%.
Embodiment 19
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the tellurium mercury quantum dot normal hexane solution of 0.5mg/ml; Under the condition of normal temperature lucifuge, keep 6h, finally make tellurium mercury quantum sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (the quantum dot sensitized titanium oxide/carbon nano tube composite fibre of tellurium mercury be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.20%.
Embodiment 20
(1) to put into 50 ℃, weight percent concentration be that 50% aqueous sulfuric acid is handled 90min for carbon nano-tube fibre that 3cm is long, takes out the back with deionized water rinsing three times;
(2) the 100mg butyl titanate is dissolved in the 100ml ethanol, and to use the pH value of acetate regulation system be 3 that being configured to weight concentration is the titanium precursor liquid solution of 1.0mg/ml;
(3) the acid treatment carbon nano-tube fibre that step (1) is obtained is put into the titanium precursor liquid solution that step (2) obtains, and carries out vacuum impregnation.Air pressure is 100Pa, and the time is 30min, after dipping finishes product is taken out, and dry 12h obtains titanium oxide gel/carbon nano tube composite fibre under 100 ℃;
(4) with the heat treatment under the mixed atmosphere of oxygen/argon of titanium oxide gel/carbon nano tube composite fibre, obtain titanium oxide/carbon nano tube composite fibre.Wherein, heat treatment time is 90min, and temperature is 450 ℃, oxygen: the mol ratio of argon gas is 1:4;
(5) titanium oxide/carbon nano tube composite fibre being immersed weight concentration is the zinc selenide quantum dot normal hexane solution of 0.5mg/ml; Under the condition of normal temperature lucifuge, keep 6h, finally make zinc selenide quantum sensitization titanium oxide/carbon nano tube composite fibre solar battery photoanode;
(6) be that the sodium sulfide solution of 80mg/ml is an electrolyte with the weight concentration; Adopting three-electrode method (zinc selenide quantum dot sensitization titanium oxide/carbon nano tube composite fibre be light anode, platinum filament for be reference electrode to electrode, Ag/AgCl), is 100mWcm at irradiance
-2Down test of simulated solar irradiation, the electricity conversion of fiber optic anode is 3.99%.
More than the present invention has been done exemplary description; Should be noted that; Under the situation that does not break away from core of the present invention, the replacement that is equal to that any simple deformation, modification or other those skilled in the art can not spend creative work all falls into protection scope of the present invention.
Claims (10)
1. quantum dot sensitized oxide/carbon nano tube composite fibre solar battery photoanode is characterized in that being made up of oxide/carbon nano tube composite fibre and quantum dot light sensitizer.
2. the described solar battery photoanode of claim 1, wherein said oxide/carbon nano tube composite fibre is made up of oxide and carbon nano-tube fibre; Described oxide is titanium oxide, zinc oxide or tin oxide.
3. the described solar battery photoanode of claim 1, wherein said quantum dot light sensitizer is cadmiumsulfide quantum dot, CdSe quantum dots, cadmium telluride quantum dot, zinc sulphide quantum dot, zinc selenide quantum dot, zinc telluride quantum dot, mercuric sulphide quantum dot, mercury selenide quantum dot or tellurium mercury quantum dot.
4. prepare the method for quantum dot sensitized oxide/carbon nano tube composite fibre solar battery photoanode, it is characterized in that, carry out according to following step:
(1) places the acid solution of uniform temperature to handle certain hour carbon nano-tube fibre, take out the back and use deionized water rinsing;
(2) metallo-organic compound with a certain amount of titaniferous, zinc or tin is dissolved in organic solvent, and with the pH value of acetate regulation system, is configured to precursor solution;
(3) precursor solution that the acid treatment carbon nano-tube fibre that step (1) is obtained is put into step (2) preparation carries out vacuum impregnation, and air pressure is 100-500Pa, and the time is 30-60min; After dipping finishes product is taken out, after drying, obtain oxide gel/carbon nano tube composite fibre;
(4) with oxide gel/carbon nano tube composite fibre heat treatment under the mixed atmosphere of oxygen/argon of step (3) preparation, obtain oxide/carbon nano tube composite fibre;
(5) oxide/carbon nano tube composite fibre with step (4) preparation immerses in the hexane solution of certain density quantum dot light sensitizer; Under the condition of normal temperature lucifuge, keep a period of time, finally make quantum dot sensitized oxide/carbon nano tube composite fibre solar battery photoanode.
5. the described method of claim 4, in the wherein said step (1), said acid solution is sulfuric acid, nitric acid or aqueous solution of hydrochloric acid, and the weight percent concentration of acid solution is 50-80%, and temperature is 50-80 ℃, and the processing time is 60-90min.
6. the described method of claim 4, the metallo-organic compound of titaniferous, zinc or tin is described in the wherein said step (2): tetraethyl titanate, butyl titanate, isopropyl titanate, isopropyl titanate, titanium acetylacetone, zinc acetate, zinc stearate, zinc methide, zinc acetylacetonate, PZ, tributyl ethene tin, hexamethyl ethyl tin, tetrem thiazolinyl tin, dibutyltin diacetate or bis-acetylacetonate base dibutyl tin; Said organic solvent is methyl alcohol, ethanol, ethylene glycol, propyl alcohol, isopropyl alcohol, butanols, acetone, butanone, acetylacetone,2,4-pentanedione or the methylisobutylketone that is in a liquid state under the normal temperature; Metal-organic weight concentration is 1.0-5.0mg/ml in the said precursor solution; The pH value of said precursor solution is 3-5.
7. the described method of claim 4, in the wherein said step (3), vacuum-impregnated air pressure is 100-500Pa, the time is 30-60min.
8. the described method of claim 4, in the wherein said step (4), the heat treatment in the mixed atmosphere of oxygen/argon of oxide gel/carbon nano tube composite fibre, the time is 90-120min, temperature is 300-450 ℃, oxygen: the mol ratio of argon gas is 1:4-8.
9. the quantum dot light sensitizer is in the described method of claim 4, wherein said step (5): cadmiumsulfide quantum dot, CdSe quantum dots, cadmium telluride quantum dot, zinc sulphide quantum dot, zinc selenide quantum dot, zinc telluride quantum dot, mercuric sulphide quantum dot, mercury selenide quantum dot or tellurium mercury quantum dot; The weight concentration of quantum dot is 0.1-0.5mg/ml in the said quantum dot light sensitizer solution, and dip time is 6-12h.
10. the application of the said quantum dot sensitized oxide of claim 1/carbon nano tube composite fibre solar battery photoanode aspect preparation fiber solar cell and enhancing cell photoelectric transformation efficiency.
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| CN107591248A (en) * | 2017-08-04 | 2018-01-16 | 天津师范大学 | Quantum dot-graphene-carbon nano-tube film composite and flexible solar battery photoanode and preparation method thereof |
| CN110364361A (en) * | 2018-04-09 | 2019-10-22 | 天津师范大学 | A kind of quantum dot sensitized solar cell and preparation method thereof with graphite phase carbon nitride boundary layer |
| CN111640875A (en) * | 2020-05-15 | 2020-09-08 | 中国地质大学（武汉） | Mixed type photoelectric transistor constructed by poly (3-hexylthiophene) and mercury telluride quantum dots, and preparation method and application thereof |
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| US10984959B1 (en) | 2020-04-13 | 2021-04-20 | United Arab Emirates University | Quantum dot-sensitized solar cell and method of making the same |
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