Počet záznamů: 1  

Structural and chemical properties of boron and nitrogen dopants in graphene by means of STM/AFM in UHV at 5 K

  1. Údaje o názvuStructural 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 názvyStrukturální 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.názStructural and chemical properties of boron and nitrogen dopants in graphene by means of STM/AFM in UHV at 5 K
    Vyd.údaje2019
    Fyz.popis59 : il., grafy
    PoznámkaVed. 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
    TitulMgr.
    Studijní programNavazující
    Studijní programChemistry
    Studijní oborMaterial Chemistry
    kniha

    kniha

    Kvalifikační práceStaženoVelikostdatum zpřístupnění
    00255239-747516341.pdf4912.9 MB26.04.2019
    PosudekTyp posudku
    00255239-ved-961011070.pdfPosudek vedoucího
    00255239-opon-846762593.pdfPosudek 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  

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