Molecular arrangement investigation of copper phthalocyanine grown on hydrogen passivated Si(111) surfaces

Arbi, I.; Hamada, Boudjema; Souissi, A.; Menzli, S.; Azzouz, Chiraz Ben; Laribi, A.; Akremi, A.; Chefi, C.

doi:10.1016/j.apsusc.2014.03.100

Cited by 10 publications

(3 citation statements)

References 31 publications

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“…The height of the chain-like structure is too high for a flat-lying molecule, meaning that MnPc molecules are adsorbed with an upright configuration on TlBiSe 2 . The presence of upright molecular configuration is reported in systems with the weak molecule–substrate interaction − and at the step edges of the surface . Since no step is observed in Figure d,e, the upright configuration of the MnPc molecules would not be due to the roughness of the surface, and we therefore conclude that the upright configuration of the MnPc molecules results from the fact that the MnPc–TlBiSe 2 interaction is weaker than the MnPc–MnPc intermolecular interaction.…”

Section: Resultssupporting

confidence: 51%

Substrate-Dependent Physical Properties at the Interface of Manganese(II) Phthalocyanine and Topological Insulators

Itaya,

Higuchi,

Nishioka

et al. 2024

J. Phys. Chem. C

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A proper understanding of the physical properties at the interface between a nonmagnetic topological insulator and a magnetic film is an indispensable input to develop high-functional spintronics devices using topological insulators. In this paper, we show the physical properties of manganese(II) phthalocyanine (MnPc)-adsorbed Bi 2 Se 3 and TlBiSe 2 , two topological insulators with similar electronic states but different surface compositions. The adsorption of MnPc induces significant electron doping on Bi 2 Se 3 , while only a small hole doping was induced on TlBiSe 2 . This difference in doping is due to the different molecular orientations on the two topological insulators: the flat-lying configuration on Bi 2 Se 3 that leads to a large overlap between the d-orbital of Mn and orbitals of surface Se, and the upright configuration on TlBiSe 2 that results from the presence of Tl atoms on the surface and leads to a negligible orbital overlap. These results pave the way for applications in spintronics devices combining magnetic organic molecules and topological insulators.

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Section: Resultssupporting

confidence: 51%

Substrate-Dependent Physical Properties at the Interface of Manganese(II) Phthalocyanine and Topological Insulators

Itaya,

Higuchi,

Nishioka

et al. 2024

J. Phys. Chem. C

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“…Refs. [98,99]), the situation (e) was rationalized as the mixing the interfacial dipole and a band bending [106]; the issue will be discussed in more details in Section 3.5.…”

Section: Molecular Orientation-resolved Growth Modesmentioning

confidence: 99%

“…ing operational mechanism of OFET mimics that of the traditional (inorganic) FET. Therefore, the issue had been carefully followed in photoemission characterizations of molecular films; the conclusion on upward band bending had been habitually allured by observing the high-E B shift of photoemission features with increasing film thickness [73,74,77,80,83,86,87,106,[110][111][112][113][114][115]. The downward band bending was reported in F 16 CuPc [116].…”

Section: Band Bending Deduction From Photoemissionmentioning

confidence: 99%

Practical photoemission characterization of molecular films and related interfaces

Ivančo

2014

Preprint

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Even though the term 'organic electronics' evokes rather organic devices, a significant part of its scope deals with physical properties of 'active elements' such as organic films and interfaces. Examination of the film growth and the evolution of the interface formation are particularly needful for the understanding a mechanism controlling their final properties. Performing such experiments in an ultra-high vacuum allows both to 'stretch' the time scale for pseudo real-time observations and to control properties of the probed systems on the atomic level. Photoemission technique probes directly electronic and chemical structure and it has thereby established among major tools employed in the field.This review primarily focuses to electronic properties of oligomeric molecular films and their interfaces examined by photoemission. Yet, it does not aspire after a complete overview on the topic; it rather aims to otherwise standard issues encountered at the photoemission characterization and analysis of the organic materials, though requiring to consider particularities of molecular films in terms of the growth, electronic properties, and their characterization and analysis. In particular, the fundamental electronic parameters of molecular films such as the work function, the ionization energy, and the interfacial energy level alignment, and their interplay, will be pursued with considering often neglected influence of the molecular orientation. Further, the implication on the band bending in molecular films based on photoemission characterization, and a model on the driving mechanism for the interfacial energy level alignment will be addressed.

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Functionalization of nanocrystalline diamond films with phthalocyanines

Petkov

Reintanz

Kulisch

et al. 2016

Applied Surface Science

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Molecular arrangement investigation of copper phthalocyanine grown on hydrogen passivated Si(111) surfaces

Cited by 10 publications

References 31 publications

Substrate-Dependent Physical Properties at the Interface of Manganese(II) Phthalocyanine and Topological Insulators

Substrate-Dependent Physical Properties at the Interface of Manganese(II) Phthalocyanine and Topological Insulators

Practical photoemission characterization of molecular films and related interfaces

Functionalization of nanocrystalline diamond films with phthalocyanines

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