Počet záznamů: 1
Structural and chemical properties of boron and nitrogen dopants in graphene by means of STM/AFM in UHV at 5 K
Údaje o názvu Structural and chemical properties of boron and nitrogen dopants in graphene by means of STM/AFM in UHV at 5 K [rukopis] / Benjamin Jose Mallada faes Další variantní názvy Strukturální a chemické vlastnosti boru a dusíku dopantů v grafenu prostřednictvím STM / AFM v UHV na 5 K Osobní jméno Mallada faes, Benjamin Jose, (autor diplomové práce nebo disertace) Překl.náz Structural and chemical properties of boron and nitrogen dopants in graphene by means of STM/AFM in UHV at 5 K Vyd.údaje 2019 Fyz.popis 59 : il., grafy Poznámka Ved. práce Pavel Jelínek Dal.odpovědnost Jelínek, Pavel, (vedoucí diplomové práce nebo disertace) Dal.odpovědnost Univerzita Palackého. Katedra fyzikální chemie (udelovatel akademické hodnosti) Klíč.slova STM * AFM * KPFM * doped graphene * nitrogen doped graphene * boron doped graphene * graphene reactivity with CO * STM * AFM * KPFM * doped graphene * nitrogen doped graphene * boron doped graphene * graphene reactivity with CO Forma, žánr diplomové práce master's theses MDT (043)378.2 Země vyd. Česko Jazyk dok. angličtina Druh dok. PUBLIKAČNÍ ČINNOST Titul Mgr. Studijní program Navazující Studijní program Chemistry Studijní obor Material Chemistry kniha
Kvalifikační práce Staženo Velikost datum zpřístupnění 00255239-747516341.pdf 49 12.9 MB 26.04.2019 Posudek Typ posudku 00255239-ved-961011070.pdf Posudek vedoucího 00255239-opon-846762593.pdf Posudek oponenta
During the last decade, graphene has emerged as one of the most researched material with promising applications in photocatalysis, molecular sensing, nanoelectronics, and energy storage. Here we show the incorporation of substitutional dopants significantly affects the graphene chemical reactivity. B and N dopants locally reduce and increase respectively the interaction of graphene to individual CO molecules attached to the apex of metallic tip, used for performing scanning probe microscopy and atomic force microscopy. The interaction is driven by weak electrostatic forces between seated charges induced by dopants in graphene and the molecule. The doping is accompanied by a sharp redistribution of graphene electron density at the B-C and N-C bonds observed in high-resolution AFM images and subsequent variation of the work function. Our observations provide further insight into the non-covalent interactions of boron and nitrogen dopants in graphene with relevant molecules for potential applications in molecular sensing.During the last decade, graphene has emerged as one of the most researched material with promising applications in photocatalysis, molecular sensing, nanoelectronics, and energy storage. Here we show the incorporation of substitutional dopants significantly affects the graphene chemical reactivity. B and N dopants locally reduce and increase respectively the interaction of graphene to individual CO molecules attached to the apex of metallic tip, used for performing scanning probe microscopy and atomic force microscopy. The interaction is driven by weak electrostatic forces between seated charges induced by dopants in graphene and the molecule. The doping is accompanied by a sharp redistribution of graphene electron density at the B-C and N-C bonds observed in high-resolution AFM images and subsequent variation of the work function. Our observations provide further insight into the non-covalent interactions of boron and nitrogen dopants in graphene with relevant molecules for potential applications in molecular sensing.
Počet záznamů: 1