Physics of ultra-thin phthalocyanine films on semiconductors

Papageorgiou, Nicolas; Salomon, Éric; Angot, Thierry; Layet, J. M.; Giovanelli, Luca; Lay, G. Le

doi:10.1016/j.progsurf.2005.01.001

Cited by 152 publications

(155 citation statements)

References 98 publications

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“…There are already two excellent reviews about assemblies of phthalocyanines on surfaces. 57,58 Nicolas Papageorgiou and co-workers presented physical aspects concerning the adsorption of phthalocyanine molecules deposited on semiconductor surfaces under ultrahigh vacuum conditions. 57 Soichiro Yoshimoto et al summarized molecular assemblies of phthalocyanines and porphyrins noncovalently bounded to metal surfaces.…”

Section: Introductionmentioning

confidence: 99%

“…57,58 Nicolas Papageorgiou and co-workers presented physical aspects concerning the adsorption of phthalocyanine molecules deposited on semiconductor surfaces under ultrahigh vacuum conditions. 57 Soichiro Yoshimoto et al summarized molecular assemblies of phthalocyanines and porphyrins noncovalently bounded to metal surfaces. 58 Herein we present the growth of phthalocyanine molecules on the surfaces of several conducting metals, semiconducting TiO 2 and insulating NaCl thin films under ultrahigh vacuum conditions.…”

Section: Introductionmentioning

confidence: 99%

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Review Article: Structures of phthalocyanine molecules on surfaces studied by STM

Wang¹,

Wu²,

Berndt³

2012

AIP Advances

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This review mainly focuses on progress recently achieved in the growth of phthalocyanine molecules on single-crystal surfaces of sub-monolayer up to few-monolayer thin films studied by scanning tunneling microscopy in our groups. On metallic surfaces such as Au(111), Ag(111) and Cu(111), molecular superstructures are determined by combining directional intermolecular interactions caused by symmetry reduction, molecule-substrate interactions and indirect long-range interactions due to quantum interference of surface state electrons. On semiconducting TiO2 surface, molecular assembling structures are dictated by the strong molecule-substrate interaction. However, on insulating NaCl film, molecule-molecule interaction dominates over the molecule-NaCl coupling, leading to molecular growth behavior. Knowledge obtained from these studies would help people better understand the physicochemical properties of the phthalocyanine molecules at surfaces so that their new applications could be further explored and uncovered in the future

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Review Article: Structures of phthalocyanine molecules on surfaces studied by STM

Wang¹,

Wu²,

Berndt³

2012

AIP Advances

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“…On solid supports, phthalocyanines and phthalocyanine derivatives form ordered monolayer structures. [2][3][4][5][6][7] Such monolayers are promising candidates for novel catalytic [8][9][10][11][12] and gas sensing applications. [13][14][15][16][17][18][19][20][21][22][23][24][25][26] Their function will depend critically on the molecular electronic structure, which for phthalocyanines containing certain transition metals (such as Cr, Mn, Fe, Co) is quite complex with an open shell structure of the d orbitals and a number of energetically close-lying electronic states.…”

Section: Introductionmentioning

confidence: 99%

Ammonia adsorption on iron phthalocyanine on Au(111): Influence on adsorbate–substrate coupling and molecular spin

Isvoranu

Wang

Ataman

et al. 2011

The Journal of Chemical Physics

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The adsorption of ammonia on Au(111)-supported monolayers of iron phthalocyanine has been investigated by x-ray photoelectron spectroscopy, x-ray absorption spectroscopy, and density functional theory calculations. The ammonia-induced changes of the x-ray photoemission lines show that a dative bond is formed between ammonia and the iron center of the phthalocyanine molecules, and that the local spin on the iron atom is quenched. This is confirmed by density functional theory, which also shows that the bond between the iron center of the metalorganic complex and the Au (111) substrate is weakened upon adsorption of ammonia. The experimental results further show that additional adsorption sites exist for ammonia on the iron phthalocyanine monolayer.

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“…Phthalocyanine (Pc) and its derivatives are very important organic materials, due to their wide applications in areas such as gas sensing devices, photovoltaic materials, and light-emitting diodes [1][2][3]. The development of scanning tunneling microscopy/spectroscopy (STM/STS) allows a full characterization of the surface assembly and electronic structure of such species on a molecular scale.…”

Section: Introductionmentioning

confidence: 99%

Bis(phthalocyaninato)yttrium grown on Au(111): Electronic structure of a single molecule and the stability of two-dimensional films investigated by scanning tunneling microscopy/spectroscopy at 4.8 K

et al. 2010

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Scanning tunneling microscopy/spectroscopy (STM/STS) at 4.8 K has been used to examine the growth of a double-decker bis(phthalocyaninato)yttrium (YPc 2 ) molecule on a reconstructed Au(111) substrate. Local differential conductance spectra (dI/dV ) of a single YPc 2 molecule allow the characteristics of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) to be identified. Furthermore, lateral distributions of the local density of states (LDOS) have also been obtained by d I/dV mapping and confirmed by first principles simulations. These electronic feature mappings and theoretical calculations provide a basis for understanding the unique STM morphology of YPc 2 , which is usually imaged as an eight-lobed structure. In addition, we demonstrate that bias-dependent STM morphologies and simultaneous d I/dV maps can provide a way of understanding the stability of two-dimensional YPc 2 films.

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Physics of ultra-thin phthalocyanine films on semiconductors

Cited by 152 publications

References 98 publications

Review Article: Structures of phthalocyanine molecules on surfaces studied by STM

Review Article: Structures of phthalocyanine molecules on surfaces studied by STM

Ammonia adsorption on iron phthalocyanine on Au(111): Influence on adsorbate–substrate coupling and molecular spin

Bis(phthalocyaninato)yttrium grown on Au(111): Electronic structure of a single molecule and the stability of two-dimensional films investigated by scanning tunneling microscopy/spectroscopy at 4.8 K

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