High resolution photoemission spectroscopy: Evidence for strong chemical interaction between Mg and 3,4,9,10-perylene-tetracarboxylic dianhydride

Journal Article · Mon Oct 16 00:00:00 EDT 2006 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2356305· OSTI ID:20880041

Gavrila, G; Zahn, D R. T.; Braun, W ^[1]

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1. Institut fuer Physik, Technische Universitaet Chemnitz, Chemnitz 09107 (Germany)

The interface formation between Mg and 3,4,9,10-perylene-tetracarboxylic dianhydride (PTCDA) was investigated by high resolution soft x-ray photoemission spectroscopy. The interface chemistry was obtained after fitting the core level spectra as a function of Mg thickness. At the initial stage of deposition, a strong chemical interaction between Mg and the single bonded oxygen atoms of PTCDA is observed leading to the formation of MgO and a modified organic molecule. Based on the experimental evidence, the molecular structure of the modified molecule is proposed. Moreover, the changes observed in the measured C{sub 1s} core level spectra are supported by density functional theory calculations.

• OSTI ID: 20880041
• Journal Information: Applied Physics Letters, Vol. 89, Issue 16; Other Information: DOI: 10.1063/1.2356305; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DENSITY FUNCTIONAL METHOD
DEPOSITION
INTERFACES
MAGNESIUM
MAGNESIUM OXIDES
MOLECULAR STRUCTURE
ORGANIC SEMICONDUCTORS
OXYGEN
PERYLENE
PHOTOEMISSION
RESOLUTION
SOFT X RADIATION
X-RAY PHOTOELECTRON SPECTROSCOPY