title: Room temperature discrimination of adsorbed molecules and attachment sites on the Si(111)-7 × 7 surface using a qPlus sensor.
abstract: In this paper, we show that simultaneous noncontact atomic force microscopy (nc-AFM) and scanning tunneling microscopy (STM) is a powerful tool for molecular discrimination on the Si(111)-7 × 7 surface, even at room temperature. Using density functional theory modeling, we justify this approach and show that the force response allows us to distinguish straightforwardly between molecular adsorbates and common defects, such as vacancies. Finally, we prove that STM/nc-AFM method is able to determine attachment sites of molecules deposited on semiconductor surface at room temperature.
authors: Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnicka 10, 162 53 Prague, Czech Republic.
authors: Zsolt
authors: Z
authors: Majzik
authors: Benedict
authors: B
authors: Drevniok
authors: Wojciech
authors: W
authors: Kamiński
authors: Martin
authors: M
authors: Ondráček
authors: Alastair B
authors: AB
authors: McLean
authors: Pavel
authors: P
authors: Jelínek