Engineering carbon nanostructures with electrons
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
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2012
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Datensatz im Suchindex
| _version_ | 1804149760557318144 |
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| adam_text | IMAGE 1
CONTENTS
1 MOTIVATION 1
2 CARBON NANO STRUCTURES 7
2.1 GRAPHENE 7
2.1.1 ELECTRONIC PROPERTIES OF GRAPHENE 7
2.1.2 GRAPHENE NANO-RIBBONS 9
2.1.3 SYNTHESIS ROUTES FOR GRAPHENE 9
2.2 CARBON NANOTUBES 10
2.2.1 ELECTRONIC PROPERTIES O F CNTS 12
2.2.2 SYNTHESIS ROUTES FOR C N T S 12
3 TRANSMISSION ELECTRON MICROSCOPY 15
3.1 CONVENTIONAL T E M 15
3.2 LOW-VOLTAGE T E M 18
3.3 ABERRATION-CORRECTED T E M 21
3.3.1 IMAGE FORMATION IN A T E M 21
3.3.2 THE EFFECT OF ABERRATION CORRECTION 25
3.4 IMAGING SIMULATIONS 27
3.5 IN-SITU T E M 27
3.6 SCANNING T E M 29
4 ELECTRON BEAM INDUCED TRANSFORMATIONS O F CARBON NANOTUBES 31
4.1 EXPERIMENTAL 31
4.2 SELF-HEALING OF S W C N T S 3 2
4.2.1 MATERIAL REMOVAL FROM THE S W C N T LATTICE 33
4.2.2 REORGANIZATION OF THE S W C N T LATTICE 35
4.3 S W C N T - S C C JUNCTIONS 37
4.3.1 T E M STUDY 38
4.3.2 QUANTUM CHEMICAL CALCULATIONS 40
4.4 SUMMARY 41
5 ENGINEERING GRAPHENE WITH ELECTRON BEAMS 43
5.1 EXPERIMENTAL 44
5.2 AMORPHOUS CARBON ON GRAPHENE UNDER ELECTRON IRRADIATION 45
5.2.1 GRAPHITIZATION O F AMORPHOUS CARBON UNDER ELECTRON IRRADIATION 45
I X
HTTP://D-NB.INFO/1028815654
IMAGE 2
CONTENTS
5.2.2 PIERCING GRAPHENE WITH S T E M HEATED AMORPHOUS CARBON 49
5.3 MOLECULAR DYNAMICS SIMULATIONS 52
5.4 ELECTRON BEAM SCULPTING O F GRAPHENE 52
5.4.1 SCULPTING OF GRAPHENE WITH A C S -CORRECTED CONDENSOR SYSTEM . .
54 5.4.2 SCULPTING OF GRAPHENE WITH AN UNCORRECTED CONDENSOR SYSTEM . .
60 5.4.3 COMPARISON OF SCULPTING WITH THE DIFFERENT CONDENSOR SYSTEMS .
66 5.5 SUMMARY 68
6 GRAPHENE AT HIGH ELECTRICAL BIAS 6 9
6.1 EXPERIMENTAL 70
6.2 STRUCTURAL CHANGES OF GRAPHENE AT HIGH BIAS 70
6.2.1 GRAPHENE CRACKING 71
6.2.2 CURRENT DENSITY IN GRAPHENE NANO-CONSTRICTIONS . . . 73
6.2.3 LAYER-BY-LAYER PEELING O F MULTI-LAYER GRAPHENE 75
6.2.4 FUSING O F GRAPHENE 77
6.3 LATTICE EXPANSION IN BI-LAYER GRAPHENE CONSTRICTIONS 79
6.4 TRANSFORMING AMORPHOUS CARBON INTO GRAPHENE VIA CURRENT-INDUCED AN
NEALING 90
6.4.1 TRANSFORMATION OF AMORPHOUS CARBON 91
6.4.2 REPAIRING HOLES IN GRAPHENE 95
6.4.3 MOLECULAR DYNAMICS SIMULATIONS 95
6.5 SUMMARY 97
7 SUMMARY 9 9
A EXPERIMENTAL CONSTRUCTIONS A N D INSTALLATIONS 103
A . I IN SITU ELECTRICAL MEASUREMENT HOLDER DESIGN 103
A.1.1 SAMPLE HOLDER FOR IN SITU T E M 103
A. 1.2 ELECTRICAL MEASUREMENT INSTRUMENTATION 106
A. 2 MEASURES TO REDUCE CONTAMINATION 106
A.3 INSTALLATION OF A DOUBLE ABERRATION-CORRECTED T E M 106
A .3 .1 ENVIRONMENTAL CONSIDERATIONS 108
A . 3 . 2 THE INSTRUMENT 109
A.3.3 PERFORMANCE AT LOW VOLTAGES 111
B SUPPORTING THEORY 115
B . I S C C / S W C N T JUNCTIONS 115
B.1.1 MOLECULAR DYNAMICS SIMULATIONS 115
B.1 .2 FIRST PRINCIPLES D F T CALCULATIONS 117
B .2 M D SIMULATIONS O F AMORPHOUS CARBON ELECTRON IRRADIATION 117
B .3 M D SIMULATIONS O F GRAPHENE FORMATION UPON JOULE HEATING 120
X
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| any_adam_object | 1 |
| author | Börrnert, Felix 1981- |
| author_GND | (DE-588)1027414265 |
| author_facet | Börrnert, Felix 1981- |
| author_role | aut |
| author_sort | Börrnert, Felix 1981- |
| author_variant | f b fb |
| building | Verbundindex |
| bvnumber | BV040643959 |
| classification_rvk | UQ 3600 UQ 8230 ZN 3700 |
| ctrlnum | (OCoLC)824734535 (DE-599)BSZ373194765 |
| dewey-full | 530.413 |
| dewey-hundreds | 500 - Natural sciences and mathematics |
| dewey-ones | 530 - Physics |
| dewey-raw | 530.413 |
| dewey-search | 530.413 |
| dewey-sort | 3530.413 |
| dewey-tens | 530 - Physics |
| discipline | Physik Elektrotechnik / Elektronik / Nachrichtentechnik |
| format | Thesis Book |
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| illustrated | Illustrated |
| indexdate | 2024-07-10T00:28:09Z |
| institution | BVB |
| language | English |
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| physical | XIV, 161 S. Ill., graph. Darst. |
| publishDate | 2012 |
| publishDateSearch | 2012 |
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| spelling | Börrnert, Felix 1981- Verfasser (DE-588)1027414265 aut Engineering carbon nanostructures with electrons von Felix Börrnert 2012 XIV, 161 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Dresden, Techn. Univ., Diss., 2012 Elektronenstrahlbearbeitung (DE-588)4423328-0 gnd rswk-swf Nanostruktur (DE-588)4204530-7 gnd rswk-swf Kohlenstoff-Nanoröhre (DE-588)4581365-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Kohlenstoff-Nanoröhre (DE-588)4581365-6 s Nanostruktur (DE-588)4204530-7 s Elektronenstrahlbearbeitung (DE-588)4423328-0 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025470966&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Börrnert, Felix 1981- Engineering carbon nanostructures with electrons Elektronenstrahlbearbeitung (DE-588)4423328-0 gnd Nanostruktur (DE-588)4204530-7 gnd Kohlenstoff-Nanoröhre (DE-588)4581365-6 gnd |
| subject_GND | (DE-588)4423328-0 (DE-588)4204530-7 (DE-588)4581365-6 (DE-588)4113937-9 |
| title | Engineering carbon nanostructures with electrons |
| title_auth | Engineering carbon nanostructures with electrons |
| title_exact_search | Engineering carbon nanostructures with electrons |
| title_full | Engineering carbon nanostructures with electrons von Felix Börrnert |
| title_fullStr | Engineering carbon nanostructures with electrons von Felix Börrnert |
| title_full_unstemmed | Engineering carbon nanostructures with electrons von Felix Börrnert |
| title_short | Engineering carbon nanostructures with electrons |
| title_sort | engineering carbon nanostructures with electrons |
| topic | Elektronenstrahlbearbeitung (DE-588)4423328-0 gnd Nanostruktur (DE-588)4204530-7 gnd Kohlenstoff-Nanoröhre (DE-588)4581365-6 gnd |
| topic_facet | Elektronenstrahlbearbeitung Nanostruktur Kohlenstoff-Nanoröhre Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025470966&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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