CN103236494B - A kind of preparation method of carbon-based nano power supply - Google Patents
A kind of preparation method of carbon-based nano power supply Download PDFInfo
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- CN103236494B CN103236494B CN201310135285.5A CN201310135285A CN103236494B CN 103236494 B CN103236494 B CN 103236494B CN 201310135285 A CN201310135285 A CN 201310135285A CN 103236494 B CN103236494 B CN 103236494B
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Abstract
The invention provides a kind of method prepared and assemble carbon-based nano strain power supply.The present invention utilizes c-based nanomaterial, its deformation is made to change band structure by applying external force, and then its absorption and conduct charges ability generation significant change in electrolyte environment, when the c-based nanomaterial with reset condition forms circuit system, voltage will be produced and export.The present invention can provide high voltage and electric current in very among a small circle.Meanwhile, the structural stability of c-based nanomaterial is good, the long service life of nanometer strain power supply.Carbon-based nano power supply prepared by the inventive method can be used for the energy, information, biomedical sector.
Description
Technical field
The present invention relates to a kind of method preparing carbon-based nano power supply, belong to field of nanometer devices.
Background technology
In the past few decades in the time, nanoscale science and technology achieves many breakthroughs in fields such as nanoelectronics, optoelectronics, material science, chemistry, biologies, nano material novel in a large number and nano-device are constantly developed, and show unprecedented application prospect in the every field of biomedicine, information, the energy and people's daily life.The civilization and progress, sustainable development etc. obtained human society of these achievements will exert far reaching influence.
In nanosecond science and technology, the exploration and application of nano-device is the most important, and the micro-nano power supply wherein driving nano-device to run is one of key technology.The power consumed due to nano-device is extremely low, if the energy existed in development and utilization surrounding environment, as solar energy, wind energy, heat energy, mechanical energy etc., for the operating power source of nano-device, has important function and meaning by the development of nanosecond science and technology.In recent years, a large amount of research work achieves breakthrough in nano generator.Such as, Wang Zhonglin etc. utilize piezoelectricity and coupled characteristic specific to zinc oxide (ZnO) nano wire successfully to develop nano generator.They are with α-Al
2o
3for substrate, take gold nano grain as catalyst, go out ZnO nanowire array by gas-liquid-solid (VLS) growth mechanism.Then, stir ZnO nano-wire by atomic-force microscope needle-tip, make it produce bending and recover upright, find the mechanical energy of nanoscale to be become electric energy in this process.This achievement in research is that firm basis has been established in the invention of nano generator and popularization.Subsequently, the nano generator driven by ultrasonic wave accordingly, the nano generator etc. driven by the vibration noise of different frequency are in succession designed and develop, and indicate feasibility and the broad prospect of application of preparation and assemble nanometer generator further.
Summary of the invention
Technical problem to be solved by this invention is the preparation method providing a kind of carbon-based nano power supply.
The present invention for provided technical scheme is provided and step as follows:
(1) prepare carbon nanomaterial, adopt chemical transfer method or spin coating method to be transferred to by carbon nanomaterial on flexible polymer thin slice;
(2) by evaporation, electron beam exposure or photoetching technique at polymer flake Surface Creation conductive film, conductive film carbon nanomaterial surface formed microelectrode, carbon nanomaterial surface charge can be derived;
(3) polymer flake being attached with carbon nanomaterial and conductive film of two panels step (2) gained is placed in electrolyte environment, by conductive film extraction electrode, respectively as the two poles of the earth of nanometer power supply; Stretch or bending wherein a slice polymer flake, make the carbon nanomaterial generation deformation being attached to polymer surfaces, thus make the two poles of the earth output voltage of nanometer power supply.
C-based nanomaterial in such scheme is as electrode material, and the preparation method of c-based nanomaterial is unrestricted.The various methods such as chemical vapour deposition technique, solwution method, micro-arc discharge method, mechanical stripping method, epitaxial growth method, flame method can be adopted.
Described nano material can be Graphene, carbon nano-tube, carbon nano-fiber, fullerene, or their N doping material etc.
Described polymeric material must insulate, flexibility, can stretch or bend, such as dimethyl silicone polymer, polymethyl methacrylate, Kynoar etc. in some scale.The thickness of polymer flake can be 1-100mm.
The material of described conductive film can be the one in indium tin metal oxide, gold, silver, platinum, aluminium, nickel, copper.
In step (3), stretch or bending flexible polymer thin slice, deformation range controls at 0.1%-20%.
Described electrolyte is soluble salt solutions (concentration is 0.1-10mol/L) or solid electrolyte.Can significant change be there is in absorption and the conduct charges ability of the c-based nanomaterial under deformed state.Therefore, be, in the circuit system that the c-based nanomaterial of reset condition is formed, to be easy to realize voltage and to export.
Nanometer power supply provided by the present invention can in parallel or series connection, forms a kind of nanometer strain power pack, makes voltage output range adjustable within the scope of mV-V.
The present invention utilizes c-based nanomaterial, its deformation (stretch, bend) is made to change band structure by applying external force (mechanism), and then its absorption and conduct charges ability generation significant change in electrolyte environment, therefore, when the c-based nanomaterial with reset condition forms circuit system, voltage will be produced and export.We by different designs and assembling, can also reach output voltage adjustable in mV-V interval.Compared with metal oxide (ZnO) nano wire power supply before, general principle is completely different.In addition, connect extremely pliable and tough between the carbon atom of c-based nanomaterial.When being subject to external force, carbon atom face deforms, and makes carbon atom need not rearrange to adapt to external force, thus ensure that the structural stability of self.
The beneficial effect of nanometer power supply provided by the invention is also: the specific area of c-based nanomaterial is large, can very among a small circle in higher voltage and current is provided.Meanwhile, the structural stability of c-based nanomaterial is good, the long service life of nanometer strain power supply.Carbon-based nano power supply prepared by the inventive method can be used for the energy, information, biomedical sector.
Accompanying drawing explanation
Fig. 1 is the electrode schematic diagram of the nanometer strain power supply in the embodiment of the present invention;
Fig. 2 is the electrode schematic diagram of the nanometer strain power pack in the embodiment of the present invention;
Fig. 3 is the operation principle schematic diagram that one embodiment of the invention nanometer strain power supply produces chemical potential;
Fig. 4 is the pattern photo of nanometer strain power supply original electrodes and stretching rear electrode;
Fig. 5 is the output voltage result of nanometer strain power supply.
Embodiment
Below in conjunction with drawings and Examples, the present invention is set forth further, but therefore do not limit the present invention within described scope of embodiments.
embodiment 1
The graphene sheet layer that mechanical stripping method is prepared is transferred to the thick dimethyl silicone polymer surface of 10mm.Photoetching technique was adopted to go between as electrode material at graphenic surface coating Ag films.Electrode schematic diagram as shown in Figure 1.Use two panels Graphene/polydimethylsiloxanefilm film respectively as the two poles of the earth of nanometer strain power supply, use the Na of 0.1mol/L
2sO
4solution is as the electrolyte of nanometer strain power supply.Pull a wherein pole, make the dependent variable of Graphene reach 1%, the voltage of about about 2mV can be obtained.
embodiment 2
The graphene sheet layer (multi-disc) epitaxial growth method prepared is transferred to the thick polymethyl methacrylate surface of 30mm.Adopt electron beam lithography to go between as electrode material at multi-disc graphenic surface coated with gold film, form Graphene electrodes group.Electrode group schematic diagram, as shown in Figure 2.Use two panels Graphene/polymethyl methacrylate film respectively as the two poles of the earth of nanometer strain power supply, use the KCl solution of 1mol/L as the electrolyte of nanometer strain power supply.Pull a wherein pole, make the dependent variable of Graphene group reach 2%, the voltage of about about 0.4V can be obtained.Carbon-based nano strain power pack produces chemical potential fundamental diagram, as shown in Figure 3.
embodiment 3
The fullerene adopting rotary coating to be prepared by chemical vapour deposition technique is coated in the thick polyvinylidene fluoride surface of 50mm.Vacuum evaporation technology is adopted to go between as electrode material at fullerene thin film surface-coated nickel film.Use two panels fullerene/polyvinylidene difluoride film as the two poles of the earth of nanometer strain power supply respectively, use the NaCl solution of 5mol/L as the electrolyte of nanometer strain power supply.Pull a wherein pole, make the dependent variable of fullerene thin film reach 5%, as shown in Figure 4.The voltage of about about 3mV can be obtained.
embodiment 4
The carbon nano-tube adopting rotary coating flame method to be prepared is coated in the thick polyvinylidene fluoride surface of 100mm.Vacuum evaporation technology is adopted to go between as electrode material at carbon nano-tube film surface-coated aluminium film.Use two panels Carbon Nanotube/Polymer film as the two poles of the earth of nanometer strain power supply respectively, use the K of 10mol/L
2sO
4solution is as the electrolyte of nanometer strain power supply.Pull a wherein pole, make the dependent variable of Graphene reach 10%, the voltage of about about 8mV can be obtained.By repeatedly stretching, reduction can obtain the output variable of voltage to strain stretch and reduction, as shown in Figure 5.
Claims (8)
1. a preparation method for carbon-based nano power supply, is characterized in that, comprises the steps:
(1) prepare carbon nanomaterial, adopt chemical transfer method or spin coating method to be transferred to by carbon nanomaterial on flexible polymer thin slice;
(2) by evaporation, electron beam exposure or photoetching technique at polymer flake Surface Creation conductive film, conductive film carbon nanomaterial surface formed microelectrode, carbon nanomaterial surface charge can be derived;
(3) polymer flake being attached with carbon nanomaterial and conductive film of two panels step (2) gained is placed in electrolyte environment, by conductive film extraction electrode, respectively as the two poles of the earth of nanometer power supply; Stretch or bending wherein a slice polymer flake, make the carbon nanomaterial generation deformation being attached to polymer surfaces, thus make the two poles of the earth output voltage of nanometer power supply.
2. preparation method according to claim 1, is characterized in that, described c-based nanomaterial is Graphene, carbon nano-fiber, fullerene, or their N doping material.
3. preparation method according to claim 1, is characterized in that, described c-based nanomaterial adopts the preparation of chemical vapour deposition technique, solwution method, micro-arc discharge method, mechanical stripping method, epitaxial growth method or flame method.
4. preparation method according to claim 1, is characterized in that, described polymer is dimethyl silicone polymer, polymethyl methacrylate or Kynoar, and the thickness of polymer flake is 1-100mm.
5. preparation method according to claim 1, is characterized in that, described conductive film is the one in indium tin metal oxide, gold, silver, platinum, aluminium, nickel, copper.
6. preparation method according to claim 1, is characterized in that, in step (3), stretch or bending flexible polymer thin slice, deformation range controls at 0.1%-20%.
7. preparation method according to claim 1, is characterized in that, in step (3), described electrolyte is soluble salt solutions or solid electrolyte.
8. the nanometer power sources in parallel prepared of preparation method according to claim 1 or the carbon-based nano power pack that is connected into.
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| TWI495183B (en) * | 2013-10-09 | 2015-08-01 | Nat Univ Tsing Hua | Method for manufacturing electrode film |
| CN105515443A (en) * | 2015-12-03 | 2016-04-20 | 北京北纬通信科技股份有限公司 | Energy conversion system and method for environmental acoustic energy |
| CN107275476A (en) * | 2017-06-02 | 2017-10-20 | 合肥同佑电子科技有限公司 | A kind of preparation method of nanometer of power supply |
| CN107275477A (en) * | 2017-07-04 | 2017-10-20 | 合肥择浚电气设备有限公司 | A kind of preparation method of carbon-based strain power supply |
| CN108987576B (en) * | 2018-07-18 | 2020-12-25 | 深圳市华星光电半导体显示技术有限公司 | Preparation method of carbon nanotube composite film, carbon nanotube TFT and preparation method thereof |
| CN110033598A (en) * | 2019-03-14 | 2019-07-19 | 李功伯 | Apparatus for correcting |
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| CN101656486A (en) * | 2009-09-18 | 2010-02-24 | 上海理工大学 | Zinc oxide nano wire/polymer nano composite energy converter and preparation method thereof |
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| US8003982B2 (en) * | 2005-12-20 | 2011-08-23 | Georgia Tech Research Corporation | Stacked mechanical nanogenerator comprising piezoelectric semiconducting nanostructures and Schottky conductive contacts |
| WO2008155761A2 (en) * | 2007-06-17 | 2008-12-24 | Physical Logic Ag | Carbon nano-tube power cell |
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| CN101656486A (en) * | 2009-09-18 | 2010-02-24 | 上海理工大学 | Zinc oxide nano wire/polymer nano composite energy converter and preparation method thereof |
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| 《单壁碳纳米管：纳米发电机和纳米马达》;刘政等;《physics》;20100602;第39卷(第4期);第254页左栏最后1行~第255页左栏第7行，附图3 * |
| 《基于碳纳米管的微纳机电器件应用研究》;张冬至等;《电子元件与材料》;20120331;第31卷(第3期);第71~76页 * |
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