cam a22 7 4500 317038796 CHVBK 20200825061648.0 cr || |||||||| 140621s2013 sz sm 00 0 eng d urn:nbn:ch:bel-406232 urn 10.5167/uzh-164329 doi (SNL)991017980521103976 (NEBIS)010161542 (ZORA)oai:www.zora.uzh.ch:164329 (Sz)991017980521103976 (Sz)001760710 Sz Sz 530 23sdnb Roth Silvan Graphene on metal surfaces and hexagonal boron nitride von Silvan Roth [S.l.] [s.n.] 2013 72 S. Ill. Titel und Beschreibung vom Lieferanten (19.09.2014) Diss. Univ. Zürich, 2013 openAccess eu-repo application/pdf Abstract In this thesis, procedures for chemical vapor deposition growth of graphene on rhodium and on hexagonal-boron nitride were developed. The systems were further characterized by an- gular resolved photoemission spectroscopy and scanning tunneling microscopy. A single atomic layer of graphite, so called graphene has gathered a lot of attention nowadays. Due to its high carrier mobility it has great potential for future electronics. Another appli- cation for graphene is related to its chemical inertness. It can serve as template for single molecule deposition. With these applications in mind, it is necessary to find suitable production methods to fabri- cate high quality, large scale graphene. Among various fabrication methods, chemical vapor deposition has turned out to be a possible route to meet the demanded criteria of graphene fabrication. The growth and characterization of graphene on Rh(111) and hexagonal-boron nitride are the content of this thesis. Graphene grown by chemical vapor deposition of 3-pentanone on Rh(111) leads to a largescale, uniform growth of graphene. A unique corrugation of the graphene layer is observed, which contains three depressions and a hill site within the unit cell. These three pockets have a diameter of roughly 1 nm and have therefore high potential to act as adsorption sites for single molecules. In contrast to the strongly bonded graphene on Rh(111), graphene on h-BN shows weak inter- action with the substrate. Growing graphene on h-BN demands different process parameters, since the metal surface is passivated by the h-BN layer, i. e. it requires higher activation energy (temperature) and higher pressure. The bonding of graphene to the h-BN/Cu(111) is weak enough, that the graphene and the h-BN layer keep their intrinsic lattice constant during the formation which differs by 1.6%. This results in formation of a large moir´ pattern with a lattice constant of 15.4 nm. The mismatch is also represented in the electronic band structure,where two Brillouin zones of different diameter are found for the two layers. The corrugated h-BN nanomesh on Rh(111) as a substrate for graphene formation exhibits a unique behavior during the formation process. Other than in the case of h-BN/Cu(111), the h-BN layer here undergoes a change during the graphene formation process. An intercalation of carbon between the h-BN layer and Rh and a diffusion of carbon into the Rh bulk leads to a weakening of the bonding and the h-BN layer looses its corrugated nanomesh character. In a second CVD process, graphene can be grown on this flat h-BN substrate. Hochschulschrift gnd-content UZH Dissertations zora xehelv xediss 2014 530 snl ehelv SNL NB001 NB999 - chb99 - http://opac.nebis.ch/ediss/20142050.pdf https://nbn-resolving.org/urn/resolver.pl?urn=urn:nbn:ch:bel-406232 http://www.e-helvetica.nb.admin.ch/directAccess?callnumber=bel-406232 BK020353 XK020053 XK020000 1 Hochschulschrift = Thèse/Mémoire 2 CF Elektron. Daten Fernzugriff=Fichier online UNI-ZH nebis E2 ZH idszbz Z1 zbzdis201406e wuet zbzswk201406d idszbz Z2 ZB530 Z01 ZORA ZORA ZORA Dissertation openAccess NEBIS Z01 Z01 ADH DAR DF 7101 NEBIS Z01 Z01 05 UnS 2014: 138 NEBIS Z01 Z01 OL SNL 100 1- Roth Silvan SNL 856 40 http://opac.nebis.ch/ediss/20142050.pdf SNL 856 4- https://nbn-resolving.org/urn/resolver.pl?urn=urn:nbn:ch:bel-406232 SNL 856 42 http://www.e-helvetica.nb.admin.ch/directAccess?callnumber=bel-406232 NEBIS 100 1- Roth Silvan NEBIS 700 1- Osterwalder Jürg 1957- (DE-588)1089238088 Akademischer Betreuer dgs ZORA 856 40 https://www.zora.uzh.ch/id/eprint/164329/1/20142050.pdf text/html WWW-Backlink auf das Repository ZORA 100 1- Roth Silvan NEBIS ZAD50 EBI01 Z01 https://opac.nebis.ch/objects/pdf03/z01_010161542_01.pdf Titelblatt und Inhaltsverzeichnis VIEW pdf NEBIS ZAD50 EBI01 Z01 https://opac.nebis.ch/F?func=service&doc_library=EBI01&local_base=EBI01&doc_number=010161542&sequence=000003&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA Volltext VIEW pdf 20142050.pdf NEBIS ZAD50 EBI01 Z01 https://opac.nebis.ch/ediss/20142050_a.pdf Abstract VIEW pdf SWISSBIB 317038796 ORANGE 317038796