EP2760787A1 - Verfahren zum herstellen von graphen-nanobändern - Google Patents
Verfahren zum herstellen von graphen-nanobändernInfo
- Publication number
- EP2760787A1 EP2760787A1 EP12769382.8A EP12769382A EP2760787A1 EP 2760787 A1 EP2760787 A1 EP 2760787A1 EP 12769382 A EP12769382 A EP 12769382A EP 2760787 A1 EP2760787 A1 EP 2760787A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nanoribbons
- graphene nanoribbons
- heating
- precursor material
- metal surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/184—Preparation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
- H10D62/881—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being a two-dimensional material
- H10D62/882—Graphene
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/06—Graphene nanoribbons
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
- C01P2004/17—Nanostrips, nanoribbons or nanobelts, i.e. solid nanofibres with two significantly differing dimensions between 1-100 nanometer
Definitions
- the present invention relates to the field of graphene nanoribbons (also called “graphene nanoribbons, GNR”)
- graphene nanoribbons are quasi one-dimensional molecules that can reach lengths of tens of nanometers, such graphene nanoribbons, inter alia, in Cai et al., Nature 466 , 470 (2010), for example, have great potential for future electronic circuits.
- the object is to find a method for the production of graphene nanoribbons, which allows to adjust the spatial orientation of the resulting nanoribbons with higher accuracy.
- This object is achieved by a method according to claim 1 of the present invention. Accordingly, a method for producing graphene nanoribbons is presented, comprising the step a) heating a suitable precursor material in vacuo in the presence of an anisotropic metal surface of a metal having a redox potential of -0.5 V.
- the spatial orientation of the graphene nanoribbons can be at least partially, depending on the specific application also largely adjusted. In most cases, this is based on the anisotropy of the metal surface; thus, it is presumed (though this is not a definition) that the anisotropy of the metal surface largely controls the orientation of the graphene nanoribbons.
- graphene nanoribbons is understood in particular to mean molecules which are one-dimensional, covalently bonded
- anisotropic metal surface is understood in particular to mean stepped single-crystal surfaces, preferably with high indexing, for example (775), (788)
- the metal is selected from the group consisting of Au, Ag, Cu, Fe, Co, Ni, Pd, Pt, Ir, Ru, Rh or mixtures thereof. These metals have proven themselves in practice.
- the anisotropic metal surface is selected from the group comprising [12, 11, 11], [11, 9, 9], [433], [755], [322], [11, 12, 12 ], [455], [577], [233], [788] and [775] surfaces, especially of gold and silver. It has been found that the quality of the resulting graphene nanoribbons can often be greatly improved.
- the precursor material comprises an aromatic halide having at least two halogens and at least three aromatic rings. It should be noted that the term
- Precursor material although written in the singular, does not mean that a mixture of substances can not be used; on the contrary, it does occur in practice.
- Preferred halides are chloride, bromide, iodide, especially bromide and / or chloride.
- the precursor material comprises an aromatic halide in which two aromatic rings are linked via a single bond (analogous to biphenyl). It has been found that this often greatly improves the formation tendency of the nanoribbons. Even more preferred are materials in which one or more halides are p-position to such a "biphenyl" bond.
- the precursor material comprises an aromatic halide having at least one polynuclear aromatic system. Two- to cooperatekernige systems are preferred.
- the precursor material comprises a plurality of such aromatic systems, which are preferably connected via carbon-carbon single bonds (analogously in biphenyl).
- the precursor material may be designed so that all carbon atoms are part of aromatic rings or ring systems; however, alternative and equally preferred are materials in which also aliphatic carbons (preferably as alkyl or
- Halogenalkylreste occur. Particularly preferred in this case are fused
- step a) is carried out with heating to a temperature between> 150 ° C and ⁇ 500 ° C; This has proven particularly useful in practice.
- step a) is carried out at a pressure of> 1 * 10 "11 mbar and ⁇ 5 * 10 " 4 mbar, preferably at a pressure of> 1 * 10 "10 mbar, more preferably> 1 * 10 "9 mbar and ⁇ 5 * 10 ⁇ 10 mbar.
- step a) comprises a step al) and a2): al) heating to a temperature of> 150 ° C and ⁇ 300 ° C a2) heating to a temperature of> 300 ° C and ⁇ 500 ° C, preferably for a duration of> 5 min. and ⁇ 20 min
- the method additionally comprises a step aO): aO) cleaning the anisotropic metal surface which is carried out before step a) or al) or a2).
- Step aO) preferably comprises an argon sputtering step. and / or an annealing step.
- annealing in the context of the present invention means in particular that the surface is heated above the temperature used in step a) and / or al).
- Example 1 is a graph of the length distribution of graphene nanoribbons produced according to a first embodiment of the invention (Example I)
- FIG. 2 shows an STM image of the graphene nanoribbons according to Example I.
- EXAMPLE I Preparation of graphene nanoribbons on a [788] gold surface
- the precursor material for Example I was 10,10'-dibromo-9,9'-bianthryl, which has the following structure:
- the gold surface was cleaned by argon sputtering (several cycles from 1.7 to 0.9 kv) and annealing at about 500 ° C. Then, the nano tapes were in the ultra-vacuum (10 mbar 3 * 10 ") made at surface temperatures of 162 ° C to 200 ° C, there was a Cyclodehydrogentechnik at 317 ° C. Subsequently, the nanoribbons were examined by STM microscopy.
- FIG. 1 shows the length distribution of the nanoribbons
- FIG. 2 shows an STM image (with partial enlargement).
- the nanoribbons are spatially oriented almost uniformly, the average length is 22 nm (FIG. 1).
- the precursor material for Example II was 6,11-dibromo-1,2,3,4-tetraphenyltriphenylene, which has the following structure:
- FIG. 3 shows the length distribution of the nanoribbons
- FIG. 4 shows an STM image (with partial enlargement).
- the nanoribbons are spatially oriented almost uniformly, the
- Example III Preparation of graphene nanoribbons on a [775] silver surface
- Example III the same precursor material was used as in Example II.
- the silver surface was cleaned by argon sputtering (several cycles of 1.7 to 0.9 kv) and annealing at about 500 ° C.
- the nano tapes were in the ultra-vacuum (10 mbar 3 * 10 ") made at surface temperatures of 162 ° C to 200 ° C, there was a Cyclodehydrogentechnik at 320 ° C.
- the nanoribbons were examined by STM microscopy.
- FIG. 5 shows an STM image of the nanobands that are formed, and here too the resulting uniform orientation is clearly visible.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011054103A DE102011054103A1 (de) | 2011-09-30 | 2011-09-30 | Verfahren zum Herstellen von Graphen-Nanobändern |
| PCT/EP2012/069130 WO2013045579A1 (de) | 2011-09-30 | 2012-09-27 | Verfahren zum herstellen von graphen-nanobändern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2760787A1 true EP2760787A1 (de) | 2014-08-06 |
Family
ID=46982565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12769382.8A Withdrawn EP2760787A1 (de) | 2011-09-30 | 2012-09-27 | Verfahren zum herstellen von graphen-nanobändern |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20140241975A1 (de) |
| EP (1) | EP2760787A1 (de) |
| JP (1) | JP2014527952A (de) |
| KR (1) | KR20140108628A (de) |
| CN (1) | CN103906707B (de) |
| DE (1) | DE102011054103A1 (de) |
| IL (1) | IL231782A0 (de) |
| SG (1) | SG11201401027QA (de) |
| TW (1) | TWI538881B (de) |
| WO (1) | WO2013045579A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI562960B (en) * | 2011-11-14 | 2016-12-21 | Basf Se | Segmented graphene nanoribbons |
| CN110291676B (zh) * | 2017-02-17 | 2022-08-30 | 明斯特威斯特法伦威廉大学 | 用于锂离子电池系统的电解质添加剂 |
| CN115676812A (zh) * | 2022-07-04 | 2023-02-03 | 昆明理工大学 | 一种在Au(111)基底上制备手性石墨烯纳米带的方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005019104A2 (en) * | 2003-08-18 | 2005-03-03 | President And Fellows Of Harvard College | Controlled nanotube fabrication and uses |
| DE102007041820A1 (de) * | 2007-09-03 | 2009-03-05 | Universität Bielefeld | Graphitschichten |
| GB0913011D0 (en) * | 2009-07-27 | 2009-09-02 | Univ Durham | Graphene |
| US8426309B2 (en) * | 2009-09-10 | 2013-04-23 | Lockheed Martin Corporation | Graphene nanoelectric device fabrication |
| US20120261644A1 (en) * | 2011-04-18 | 2012-10-18 | International Business Machines Corporation | Structure and method of making graphene nanoribbons |
-
2011
- 2011-09-30 DE DE102011054103A patent/DE102011054103A1/de not_active Withdrawn
-
2012
- 2012-09-27 EP EP12769382.8A patent/EP2760787A1/de not_active Withdrawn
- 2012-09-27 WO PCT/EP2012/069130 patent/WO2013045579A1/de not_active Ceased
- 2012-09-27 JP JP2014532390A patent/JP2014527952A/ja active Pending
- 2012-09-27 CN CN201280048136.9A patent/CN103906707B/zh not_active Expired - Fee Related
- 2012-09-27 KR KR1020147008218A patent/KR20140108628A/ko not_active Withdrawn
- 2012-09-27 SG SG11201401027QA patent/SG11201401027QA/en unknown
- 2012-09-27 US US14/347,240 patent/US20140241975A1/en not_active Abandoned
- 2012-09-28 TW TW101135794A patent/TWI538881B/zh not_active IP Right Cessation
-
2014
- 2014-03-27 IL IL231782A patent/IL231782A0/en unknown
Non-Patent Citations (1)
| Title |
|---|
| SOLDANO C ET AL: "Production, properties and potential of graphene", CARBON, ELSEVIER, OXFORD, GB, vol. 48, no. 8, 1 July 2010 (2010-07-01), pages 2127 - 2150, XP026996062, ISSN: 0008-6223, [retrieved on 20100204] * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140108628A (ko) | 2014-09-12 |
| US20140241975A1 (en) | 2014-08-28 |
| TWI538881B (zh) | 2016-06-21 |
| JP2014527952A (ja) | 2014-10-23 |
| CN103906707A (zh) | 2014-07-02 |
| DE102011054103A1 (de) | 2013-04-04 |
| CN103906707B (zh) | 2016-05-04 |
| WO2013045579A1 (de) | 2013-04-04 |
| IL231782A0 (en) | 2014-05-28 |
| SG11201401027QA (en) | 2014-08-28 |
| TW201328970A (zh) | 2013-07-16 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
Effective date: 20140331 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ZHONG, DINGYONG Inventor name: FUCHS, HARALD Inventor name: CHI, LIFENG Inventor name: MUELLEN, KLAUS Inventor name: FENG, XINLIANG Inventor name: ZACHARIAS, HELMUT |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20151110 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20170401 |