Impacts of annealing on structural and photophysical properties of zinc phthalocyanine adsorbed on graphene
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arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866914580361379840 |
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| author | Creutzer, Gautier Fernez, Quentin Kalashnyk, Nataliya Safarzadeh, Zohreh Vargas, Lydia Sosa Fiorini-Debuisschert, Céline Fabre, Nicolas Charra, Fabrice |
| author_facet | Creutzer, Gautier Fernez, Quentin Kalashnyk, Nataliya Safarzadeh, Zohreh Vargas, Lydia Sosa Fiorini-Debuisschert, Céline Fabre, Nicolas Charra, Fabrice |
| contents | We report the demonstration and analysis by combined scanning-tunneling-microscopy and optical microspectroscopy of a 2D phase change experienced by a self-assembled zinc phthalocyanine (ZnPc) monolayer adsorbed on graphene. To probe the intrinsic properties of individual ZnPc molecules, they are spatially confined within the pores of a self-assembled 2D matrix. This confinement allows us to track a phase change induced by annealing, which we discuss in terms of a planar-square to shuttlecock molecular transition. We show that after annealing of the adsorbed ZnPc, the exposition of Zn atoms to reactants in a supernatant solution is improved, for example, for metal-ligand formation towards 3D self-assembly. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_19676 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Impacts of annealing on structural and photophysical properties of zinc phthalocyanine adsorbed on graphene Creutzer, Gautier Fernez, Quentin Kalashnyk, Nataliya Safarzadeh, Zohreh Vargas, Lydia Sosa Fiorini-Debuisschert, Céline Fabre, Nicolas Charra, Fabrice Materials Science We report the demonstration and analysis by combined scanning-tunneling-microscopy and optical microspectroscopy of a 2D phase change experienced by a self-assembled zinc phthalocyanine (ZnPc) monolayer adsorbed on graphene. To probe the intrinsic properties of individual ZnPc molecules, they are spatially confined within the pores of a self-assembled 2D matrix. This confinement allows us to track a phase change induced by annealing, which we discuss in terms of a planar-square to shuttlecock molecular transition. We show that after annealing of the adsorbed ZnPc, the exposition of Zn atoms to reactants in a supernatant solution is improved, for example, for metal-ligand formation towards 3D self-assembly. |
| title | Impacts of annealing on structural and photophysical properties of zinc phthalocyanine adsorbed on graphene |
| topic | Materials Science |
| url | https://arxiv.org/abs/2605.19676 |