TY - JOUR
T1 - H2Pc and pentacene on Cu(110)-(2×1)O
T2 - A combined STM and nc-AFM study
AU - Garlant, Angel
AU - Maughan, Bret
AU - Zahl, Percy
AU - Monti, Oliver L.A.
N1 - Funding Information:
We acknowledge support by the National Science Foundation under grant # CHE-1565497 . This research used resources of the Center for Functional Nanomaterials, which is a U.S. DOE Office of Science Facility, at Brookhaven National Laboratory under Contract No. DE-SC0012704. We would like to thank Nathan Bamberger for help with the electronic structure calculations.
Funding Information:
We acknowledge support by the National Science Foundation under grant # CHE-1565497. This research used resources of the Center for Functional Nanomaterials, which is a U.S. DOE Office of Science Facility, at Brookhaven National Laboratory under Contract No. DE-SC0012704. We would like to thank Nathan Bamberger for help with the electronic structure calculations.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/6
Y1 - 2020/6
N2 - Scanning tunneling microscopy (STM) and non-contact atomic force microscopy (nc-AFM) with a CuO tip is used to investigate adsorption of metal-free phthalocyanine (H2Pc) and pentacene on the Cu(110)-(2×1)O striped-phase reconstructed surface. We show that the combination of STM and nc-AFM is necessary to reveal the detailed adsorption geometry, necessary for interpreting the observed STM contrast. Comparison of the nc-AFM images with simulations shows that some of the H2Pc molecules are deformed out-of-plane on this surface, while pentacene retains its molecular geometry regardless of adsorption site. Our work highlights how the stiffness of CuO tips makes it possible to probe the structure of organic semiconductor / metal interfaces.
AB - Scanning tunneling microscopy (STM) and non-contact atomic force microscopy (nc-AFM) with a CuO tip is used to investigate adsorption of metal-free phthalocyanine (H2Pc) and pentacene on the Cu(110)-(2×1)O striped-phase reconstructed surface. We show that the combination of STM and nc-AFM is necessary to reveal the detailed adsorption geometry, necessary for interpreting the observed STM contrast. Comparison of the nc-AFM images with simulations shows that some of the H2Pc molecules are deformed out-of-plane on this surface, while pentacene retains its molecular geometry regardless of adsorption site. Our work highlights how the stiffness of CuO tips makes it possible to probe the structure of organic semiconductor / metal interfaces.
KW - Nanostructured surface
KW - Noncontact atomic force microscopy
KW - Scanning tunneling microscopy
KW - Tip functionalization
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U2 - 10.1016/j.susc.2020.121590
DO - 10.1016/j.susc.2020.121590
M3 - Article
AN - SCOPUS:85079285842
VL - 696
JO - Surface Science
JF - Surface Science
SN - 0039-6028
M1 - 121590
ER -