| Naslov: | Interface-controlled growth of organic semiconductors on graphene |
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| Avtorji: | ID Mathews, Jinta, UNG (Avtor)
ID Emin, Saim, UNG (Avtor)
ID Pavlica, Egon, UNG (Avtor)
ID Valant, Matjaž, UNG (Avtor)
ID Bratina, Gvido, UNG (Avtor) |
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| Datoteke: |
Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u.  |
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Delo ni kategorizirano |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | UNG - Univerza v Novi Gorici
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| Opis: | We have studied submonolayer coverages of N,N-1H,1H-perfluorobutyl dicyanoperylenecarboxydiimide (PDIF-CN2) on mechanically exfoliated graphene transferred onto SiO2 substrates. Our atomic force microscopy (AFM) data show that PDIF-CN2 forms irregularly-shaped 1.4 nm-high islands. From the selected area diffraction performed with transmission electron microscope (TEM) we conclude that this height corresponds to π−π
stacks of molecules, which are inclined for 43° relative to the graphene surface. AFM also showed complete absence of PDIF-CN2 on single-layer graphene (SLG). Electric force microscopy revealed a marked difference in surface charge density between a single-layer graphene and bilayer graphene, with a higher surface charge on SLG than on the bilayer graphene. We associate this behavior with p−
type doping of graphene due to the electrostatic dipole induced by the molecular water layer present at the graphene/SiO2 interface. The crucial role of the graphene/SiO2 interface in determining growth of PDIF-CN2 was further confirmed by TEM examination of PDIF-CN2 deposited onto unsupported SLG. |
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| Ključne besede: | afm, organic semiconductors, graphene |
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| Verzija publikacije: | Objavljena publikacija |
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| Leto izida: | 2017 |
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| Št. strani: | 16 |
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| Številčenje: | 0, 0 |
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| PID: | 20.500.12556/RUNG-3089-af6e5781-f85a-bb71-572d-afe42bca54c6 |
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| COBISS.SI-ID: | 4780795 |
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| DOI: | 10.1016/j.susc.2017.05.005 |
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| NUK URN: | URN:SI:UNG:REP:4QEVHK2P |
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| Datum objave v RUNG: | 18.05.2017 |
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| Število ogledov: | 5585 |
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| Število prenosov: | 0 |
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| Metapodatki: |    |
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