Different bonding configurations of the aromatic anhydride NDCA on Ni(111) and : a photoemission and TDS study

Baston, U.; Jung, M.; Umbach, E.

doi:10.1016/0368-2048(95)02497-2

Cited by 15 publications

(4 citation statements)

References 27 publications

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“…Due to the high thickness of the NTCDA film, the Cu d-bands are significantly reduced and the Fermi level has almost vanished, as shown in panel b of Figure , where one can still distinguish a tiny step due to the fact that the growth mode is not layer-by-layer. The two features f and g at 5.1 and 6.0 eV are assigned to the oxygen atoms of the anhydride group, and the rest are localized close to the naphthalene carbon atoms. , …”

Section: Resultsmentioning

confidence: 99%

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Interplay between Structural and Electronic Properties in 1,4,5,8-Naphthalenetetracarboxylic Dianhydride Films on Cu(100)

et al. 2017

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Using various surface science techniques, we have studied the properties of 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTCDA) thin films on a Cu(100) surface. STM investigations suggest the high mobility of the NTCDA molecules over the surface, leading to the formation of large and well-ordered islands. In line with LEED results, two typical domains with different molecular orientations and brick-wall-like structure are revealed in the STM images. On the other hand, a fingerprint of covalent bonding at the NTCDA/Cu interface is obtained from the core level shifts measured by high-resolution XPS. As a consequence, a charge transfer process develops at the interface and enables a total filling of the π*-like lowest unoccupied orbital, which is the signature of the semiconductor character of the NTCDA layer. The carbon K-edge NEXAFS data confirm the chemisorption nature of the interaction between NTCDA and the Cu(100) surface and indicate an evolution from a flat-lying orientation of NTCDA at 1 ML to a straight-up orientation in a thick layer.

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Section: Resultsmentioning

confidence: 99%

“…The two features f and g at 5.1 and 6.0 eV are assigned to the oxygen atoms of the anhydride group, and the rest are localized close to the naphthalene carbon atoms. 62,63 NEXAFS Investigations. NEXAFS is very sensitive to both the bonding environment and the local structural configuration.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Interplay between Structural and Electronic Properties in 1,4,5,8-Naphthalenetetracarboxylic Dianhydride Films on Cu(100)

et al. 2017

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“…Many UPS studies have been reported about other combinations of organic± metal, organic±semimetal, organic±semiconductor, and organic±ionic solid systems, for example, perylene, PTCDA and thiophene tetramer on Ag(111), [142,143] NTCDA on Ni (111) and O-precovered Ni(111), [144] BTQBT on graphite and MoS 2 (BTQBT: bis(1,2,5-thiadiazolo)-pquinobis(1,3-dithiole)), [145] phthalocyanines on MoS 2 , TaSe 2 , and MoTe 2 , [146,147] C 60 on various substrates, [36,148] PTCDA on GaAs(100), [149] titanylphthalocyanine on n-TiO 2 , [150] and merocyanine dyes on Ag halides. [35] In many of these cases, however, the energy level alignment at the interface was not of primary interest.…”

Section: Other Organic Interfacesmentioning

confidence: 99%

Energy Level Alignment and Interfacial Electronic Structures at Organic/Metal and Organic/Organic Interfaces

et al. 1999

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The function of electronically functional organic materials often originates at an interface, one example being organic electroluminescent devices (the Figure shows a typical energy diagram). Therefore, elucidation of the electronic structure at interfaces will lead to a better understanding of these devices, enabling their performance to be improved. Basic concepts are reexamined and recent progress in the area is reviewed.

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“…The 50 ML C1s spectrum consists of three peaks at binding energies of 291.0 eV, 289.2 eV, and 285.4 eV which also appear in the spectra of PTCDA [13] and NDCA [13], [14]. Both molecules are very similar to NTCDA and have the same functional groups.…”

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confidence: 95%

“Manipulation" of molecular orientation in ultrathin organic films: NTCDA on Ag(111)

et al. 1998

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The bonding of 1,4,5,8-naphthalene-tetracarboxylicacid-dianhydride (NTCDA) on Ag(111) and its molecular orientation were investigated by X-ray photoelectron (XPS) and near edge X-ray absorption fine-structure spectroscopy (NEXAFS). Vapour-deposited NTCDA films show high orientational order in the mono-and multi-layer regime. In the monolayer regime the molecules are strongly bound to the substrate via the conjugated π-system of the naphthalene core which leads to a parallel orientation of the molecular plane to the Ag(111) substrate. For thicker films (e.g., 150 Å) the molecular orientation strongly depends on the substrate temperature during preparation. Film preparation at 285 K results in upright standing molecules, whereas low substrate temperatures yield a uniform molecular orientation with the molecular plane parallel to the substrate. This behaviour is explained by the weak intermolecular interaction and the adsorption kinetics.

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Different bonding configurations of the aromatic anhydride NDCA on Ni(111) and : a photoemission and TDS study

Cited by 15 publications

References 27 publications

Interplay between Structural and Electronic Properties in 1,4,5,8-Naphthalenetetracarboxylic Dianhydride Films on Cu(100)

Interplay between Structural and Electronic Properties in 1,4,5,8-Naphthalenetetracarboxylic Dianhydride Films on Cu(100)

Energy Level Alignment and Interfacial Electronic Structures at Organic/Metal and Organic/Organic Interfaces

“Manipulation" of molecular orientation in ultrathin organic films: NTCDA on Ag(111)

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