CN1807359A - Method for disposing carbon nanometer tube film surface appearance using multiple plasm in order - Google Patents
Method for disposing carbon nanometer tube film surface appearance using multiple plasm in order Download PDFInfo
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- CN1807359A CN1807359A CN 200610023239 CN200610023239A CN1807359A CN 1807359 A CN1807359 A CN 1807359A CN 200610023239 CN200610023239 CN 200610023239 CN 200610023239 A CN200610023239 A CN 200610023239A CN 1807359 A CN1807359 A CN 1807359A
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Abstract
The method to treat nano carbon tube film surface with multiple plasmas of different etching gases by turns comprises taking plasma surface treatment to the tube film with first the chemical reacted gas then the physical-functional gas for one or more times. This invention can adjust the height and density of the cano carbon tube film, optimizes the film quality, and fit to realize array design and production in scale.
Description
Technical field
What the present invention relates to is the method in a kind of Micrometer-Nanometer Processing Technology field, specifically, relates to a kind of method of disposing carbon nanometer tube film surface appearance using multiple plasm in order.
Technical background
Carbon nanotube is extensive application in micro-nano systems technology, vacuum electronic technology, sensor technology.Carbon nanotube can cover the surface of certain substrate, thereby uses as the specialty films material, for example on the scene causing in the device, and with itself and matrix bond, as membrane electrode, field emission cold-cathode for example.The surface topography of carbon nano-tube film greatly affects its performance as the specialty films material, electric property when especially affecting it as membrane electrode comprises following basic problem to the optimization of carbon nanometer tube film surface appearance: one, how controlling carbon nanotube in the density of film surface; Two, how controlling carbon nanotube at the exposing height of film surface; Three, how controlling carbon nanotube in the orientation of film surface; Four, how controlling carbon nanotube in the structure of film surface.
Find that through literature search at above problem, in the Cement Composite Treated by Plasma technical field of carbon nanometer tube film surface appearance, people such as Y.W.Zhu are at 2005 the 43rd volumes of Carbon (carbon), " the Effects of CF of the article on the 395-400 page or leaf to prior art
4Plasma on the field emission properties ofaligned multi-wall carbon nanotubes films (CF
4Plasma body is to the influence of orderly multi-wall carbon nano-tube film field emission performance) ".Article uses CF
4Plasma body is handled the epitaxial carbon nano-tube film, finds in certain treatment time scope CF
4Cement Composite Treated by Plasma can be optimized the field emission performance of carbon nano-tube film, but this technology is just effective at the epitaxial carbon nano-tube film, therefore its application has restriction greatly, especially for the carbon nano-tube film of in field-emission display device, being used always based on disordered carbon nanotube slurry technology, single etching gas composition single Cement Composite Treated by Plasma of planting, can not obtain of the distribution of the carbon nanotube of fine vertical orientated property, can not change carbon nanotube and expose height, density and homogeneity thereof at film surface at film surface.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of method of disposing carbon nanometer tube film surface appearance using multiple plasm in order is proposed, can be on the basis of complete unordered carbon nano-tube film of arranging, make carbon nanotube film surface expose the height, density obtain the modulation, the surface topography of carbon nano-tube film after treatment, expose height, density is even, and good vertical orientated property is arranged.
The present invention is achieved by the following technical solutions, the present invention carries out plasma surface treatment to carbon nano-tube film in turn with etching gas not of the same race, be specially: once or repeatedly use chemical reactivity gas before this, promptly can with the etching gas of carbon nanotube generation chemical reaction, carbon nano-tube film is carried out the reactive ion auxiliary plasma handles; Use physical action gas then, promptly can not react and can only carry out the etching gas of physical bombardment, carbon nano-tube film is carried out plasma surface treatment with carbon nanotube.
Described etching gas can be the gas of single component, also can be the combination of multiple composition gas.
Described etching gas, chemical reactivity gas wherein is one or more the combination in oxygen, muriate, the fluorochemical, or one or more gases in the oxygen, muriate, fluorochemical and the combination of rare gas element.
Described etching gas, physical action gas wherein comprises a kind of in the rare gas element.
Described usefulness etching gas not of the same race carries out plasma surface treatment in turn, also comprises by adjusting the treatment time of various etching gas, further the surface topography of carbon nano-tube film is controlled.For example, long more with the chemical reactivity gas etching time, carbon nanotube exposes density can be low more, and long more with the time of physical action gas etching, carbon nanotube is appeared big highly more.
Described carbon nano-tube film, form in substrate material surface, form the method for carbon nano-tube film, be based on coating, printing process or the scraper forming method of the carbon nanotube slurry of lack of alignment, or based on the carbon nanotube growth in situ method of ordered arrangement.
The present invention proposes a kind of method of disposing carbon nanometer tube film surface appearance using multiple plasm in order, utilize the exercising result difference of the plasma body of gas of the same race not to carbon nano-tube material, utilize all gases plasma body characteristics separately, in turn carbon nano-tube film is carried out surface treatment, thereby utilize accumulative effect in a wider context, the core parameter of control film surface appearance on the higher level, can be on the basis of complete unordered carbon nano-tube film of arranging, make the expose height of carbon nanotube at film surface, density obtains modulation, in the core parameter of the surface topography of carbon nano-tube film after treatment, expose height, density is even, good vertical orientated property is arranged, this characteristic especially can greatly be optimized the film surface quality of the film technique of carbon nanotube slurry, because this technology is normally based on the carbon nanotube dust of complete lack of alignment.
Therefore, the present invention can overcome in the prior art the deficiency of carbon nanometer tube film surface appearance controlled levels, especially can improve based in the lack of alignment carbon nano-tube film technology deficiency of surface topography controlled levels.Simultaneously, this technology is compatible with various based on microelectronic processing technique fully, and the designing and manufacturing technique of the miniature advanced device of high degree of accuracy is suitable for processing and realizes array design and batch process, and therefore wide application prospect is arranged.
Description of drawings
Fig. 1 is that the employed carbon nano-tube film of the specific embodiment of the invention is without the field emission microscope photo before the Cement Composite Treated by Plasma.
Fig. 2 is the oxygen-argon gas of the specific embodiment of the invention in turn after the Cement Composite Treated by Plasma carbon nano-tube film, the field emission microscope photo of carbon nanometer tube film surface appearance.
Embodiment
Provide embodiment below in conjunction with accompanying drawing and technical scheme:
Embodiment 1
(1) preparation of carbon nano-tube film.Employed substrate is a multilayered structure, wherein, a is a glass, b is for using the sedimentary 200 nanometer thickness chromium metals of magnetically controlled sputter method, with the carbon nanotube slurry with 350 order method for printing screen optionally at metallic film b surface filming, in 300 degrees centigrade of heat treatment furnaces, toasted 20 minutes and furnace cooling then, obtain the carbon nano-tube material film c of 2 microns mean thicknesss, the carbon nanotube slurry is that multi-walled carbon nano-tubes and mass ratio are that 1: 100 the ethyl cellulose and the organic solution of Terpineol 350 composition mix.
(2) carry out plasma surface treatment in turn with etching gas not of the same race.Be etching gas with oxygen earlier, flow is 50sccm (standard cubic centimeters per minute), and operating air pressure is 80mTorr (milli takes off), and power is 40 watts, and etching time is 90 seconds.Be etching gas with argon gas then, flow is 30sccm (standard cubic centimeters per minute), and operating air pressure is 50mTorr (milli takes off), and power is 40 watts, and etching time is 60 seconds.D is through the carbon nano-tube film surface after the processed in sequence.
The carbon nanometer tube film surface appearance that finally obtains as shown in Figure 2.As seen from Figure 2, through the carbon nanometer tube film surface appearance after the order processing with compare without finished carbon nano-tube film surface shown in Fig. 1, carbon nanotube evenly exposes on the surface, and has shown vertical orientated preferably property, and has and expose density, altitude distribution more uniformly.
Embodiment 2
(1) preparation of carbon nano-tube film.Employed substrate is a multilayered structure, wherein, a is a glass, b is for using the sedimentary 200 nanometer thickness chromium metals of magnetically controlled sputter method, with the carbon nanotube slurry with 350 order method for printing screen optionally at metallic film b surface filming, in 300 degrees centigrade of heat treatment furnaces, toasted 20 minutes and furnace cooling then, obtain the carbon nano-tube material film c of 2 microns mean thicknesss, the carbon nanotube slurry is that multi-walled carbon nano-tubes and mass ratio are that 1: 100 the ethyl cellulose and the organic solution of Terpineol 350 composition mix.
(2) carry out plasma surface treatment in turn with etching gas not of the same race.Earlier the mixed gas with trifluoromethane and sulfur hexafluoride is an etching gas, and flow is respectively 5 and 30sccm (standard cubic centimeters per minute), and operating air pressure is 80mTorr (taking off in the least), and power is 40 watts, and etching time is 90 seconds.Be etching gas with argon gas then, flow is 30sccm (standard cubic centimeters per minute), and operating air pressure is 80mTorr (milli takes off), and power is 40 watts, and etching time is 60 seconds.D is through the carbon nano-tube film surface after the processed in sequence.
The carbon nano-tube film surface that finally obtains with compare without finished carbon nano-tube film surface, carbon nanotube has significantly at film surface appears, and exposes height in tens nanometers, has uniformly density distribution; And, to compare with the result who utilizes oxygen-argon gas to process in turn, it exposes highly lower, but density is bigger.
Embodiment 3
(1) preparation of carbon nano-tube film.Employed substrate is a multilayered structure, wherein, a is a glass, b is chromium and the golden multilayer film with magnetically controlled sputter method sedimentary 30 nanometers of difference and 270 nanometer thickness, with the carbon nanotube slurry with scraping panel forming method easily at metallic film b surface filming, used scraper plate is the silicon chip of 10 mm wides, in 350 degrees centigrade of heat treatment furnaces, toasted 40 minutes and furnace cooling then, obtain the carbon nano-tube material film c of 10 microns mean thicknesss, the carbon nanotube slurry is that multi-walled carbon nano-tubes and mass ratio are that 3: 100 the ethyl cellulose and the organic solution of Terpineol 350 composition mix.
(2) carry out plasma surface treatment in turn with etching gas not of the same race.Be etching gas with oxygen earlier, flow is 50sccm (standard cubic centimeters per minute), and operating air pressure is 80mTorr (milli takes off), and power is 40 watts, and etching time is 90 seconds.Be etching gas with argon gas then, flow is 30sccm (standard cubic centimeters per minute), and operating air pressure is 50mTorr (milli takes off), and power is 40 watts, and etching time is 200 seconds.D is through the carbon nano-tube film surface after the processed in sequence.
The carbon nano-tube film surface that finally obtains with compare without finished carbon nano-tube film surface, carbon nanotube evenly exposes on the surface, has shown vertical orientated preferably property, and has and expose density, altitude distribution more uniformly.Simultaneously, with the same etching gas processed in sequence of process, but shorter embodiment 1 result of argon gas treatment time compares, and shows carbon nanotube and exposes low, the highly high characteristics of appearing of density.
Claims (6)
1, a kind of method of disposing carbon nanometer tube film surface appearance using multiple plasm in order, it is characterized in that, in turn carbon nano-tube film is carried out plasma surface treatment with etching gas not of the same race, be specially: once or repeatedly use chemical reactivity gas before this, promptly can with the etching gas of carbon nanotube generation chemical reaction, carbon nano-tube film is carried out the reactive ion auxiliary plasma handles; Use physical action gas then, promptly can not react and can only carry out the etching gas of physical bombardment, carbon nano-tube film is carried out plasma surface treatment with carbon nanotube.
2, the method for disposing carbon nanometer tube film surface appearance using multiple plasm in order as claimed in claim 1 is characterized in that, described etching gas is the gas of single component, or the combination of multiple composition gas.
3, as the method for claim 1 or 2 described disposing carbon nanometer tube film surface appearance using multiple plasm in order, it is characterized in that, described etching gas, chemical reactivity gas wherein is one or more the combination in oxygen, muriate, the fluorochemical, or one or more gases in the oxygen, muriate, fluorochemical and the combination of rare gas element.
As the method for claim 1 or 2 described disposing carbon nanometer tube film surface appearance using multiple plasm in order, it is characterized in that 4, described etching gas, physical action gas wherein are a kind of in the rare gas element.
5, the method for disposing carbon nanometer tube film surface appearance using multiple plasm in order as claimed in claim 1, it is characterized in that, described usefulness etching gas not of the same race carries out plasma surface treatment in turn, also comprise by adjusting the treatment time of various etching gas, further the surface topography of carbon nano-tube film is controlled.
6, as the method for claim 1 or 5 described disposing carbon nanometer tube film surface appearance using multiple plasm in order, it is characterized in that, described carbon nano-tube film, form in substrate material surface, form the method for carbon nano-tube film, be based on coating, printing process or the scraper forming method of the carbon nanotube slurry of lack of alignment, or based on the carbon nanotube growth in situ method of ordered arrangement.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429336B (en) * | 2008-10-30 | 2010-12-01 | 上海应用技术学院 | Process for producing carbon nano-tube/polyaniline conductive composite material |
| CN104631093A (en) * | 2015-02-10 | 2015-05-20 | 盐城工学院 | Finishing method of filter material with functions of water resistance and static resistance |
| CN105254336A (en) * | 2015-09-16 | 2016-01-20 | 浙江大学 | Method for preparing oriented carbon nanotube on surface of substrate and product |
| CN111298664A (en) * | 2020-03-16 | 2020-06-19 | 中国人民解放军火箭军工程设计研究院 | Hollow fiber gas separation composite membrane and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135588C (en) * | 2001-11-23 | 2004-01-21 | 中国科学院上海微系统与信息技术研究所 | Method of raising the field electron emitting performance of carbon nanotube film |
| JP3837451B2 (en) * | 2004-03-26 | 2006-10-25 | 国立大学法人名古屋大学 | Method for producing carbon nanotube |
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2006
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429336B (en) * | 2008-10-30 | 2010-12-01 | 上海应用技术学院 | Process for producing carbon nano-tube/polyaniline conductive composite material |
| CN104631093A (en) * | 2015-02-10 | 2015-05-20 | 盐城工学院 | Finishing method of filter material with functions of water resistance and static resistance |
| CN105254336A (en) * | 2015-09-16 | 2016-01-20 | 浙江大学 | Method for preparing oriented carbon nanotube on surface of substrate and product |
| CN105254336B (en) * | 2015-09-16 | 2018-03-06 | 浙江大学 | A kind of method and product that orientation CNT is prepared in substrate surface |
| CN111298664A (en) * | 2020-03-16 | 2020-06-19 | 中国人民解放军火箭军工程设计研究院 | Hollow fiber gas separation composite membrane and preparation method thereof |
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