NiPC/Si(111)(7 × 7)STUDIED WITH XPS, STM AND TAPPING MODE AIR AFM
L. Ottaviano,
S. di Nardo,
L. Lozzi,
M. Passacantando,
P. Picozzi and
S. Santucci
Additional contact information
L. Ottaviano: INFM unità de L'Aquila, Dipartimento di Fisica Università degli Studi de L'Aquila Via Vetoio, 67010 Coppito, L'Aquila, Italy
S. di Nardo: INFM unità de L'Aquila, Dipartimento di Fisica Università degli Studi de L'Aquila Via Vetoio, 67010 Coppito, L'Aquila, Italy
L. Lozzi: INFM unità de L'Aquila, Dipartimento di Fisica Università degli Studi de L'Aquila Via Vetoio, 67010 Coppito, L'Aquila, Italy
M. Passacantando: INFM unità de L'Aquila, Dipartimento di Fisica Università degli Studi de L'Aquila Via Vetoio, 67010 Coppito, L'Aquila, Italy
P. Picozzi: INFM unità de L'Aquila, Dipartimento di Fisica Università degli Studi de L'Aquila Via Vetoio, 67010 Coppito, L'Aquila, Italy
S. Santucci: INFM unità de L'Aquila, Dipartimento di Fisica Università degli Studi de L'Aquila Via Vetoio, 67010 Coppito, L'Aquila, Italy
Surface Review and Letters (SRL), 1997, vol. 04, issue 01, 59-64
Abstract:
We evaporated a few angstroms of nickel phthalocyanine (NiPC) in ultrahigh vacuum (UHV) on clean single crystal substrates ofSi(111)(7×7)and studiedin situthe structural and electronic properties of the interface with X-ray photoelectron spectroscopy (XPS) and scanning tunneling microscopy (STM). The mesoscopic morphology of the samples has also been studied in air with a tapping mode atomic force microscope (TM-AFM). XPS measurements with variation of the NiPC thickness suggest planar adsorption of the first layer of admolecules; in particular, we found evidences for stronger chemisorption at the outer benzene rings of the PC molecule. UHV STM measurements confirm the XPS results; despite the lack of intermolecular resolution we show an image suggesting chemisorption commensurate with the substrate lattice and planar stacking consistent with the intermolecular stacking in the known crystalline phases of metal phthalocyanines. TM-AFM shows a growth mode in terms of flat islands of 20–35 Å typical height and a few hundreds of nm width. The potential of imaging with TM-AFM elastic sample properties of soft materials deposited on hard substrates is addressed.
Date: 1997
References: Add references at CitEc
Citations:
Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X97000109
Access to full text is restricted to subscribers
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:04:y:1997:i:01:n:s0218625x97000109
Ordering information: This journal article can be ordered from
DOI: 10.1142/S0218625X97000109
Access Statistics for this article
Surface Review and Letters (SRL) is currently edited by S Y Tong
More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().