Study of the formation and properties of In–CuPcF$_4$ nanocomposite materials in the mode of the millisecond recording of photoelectron spectra - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Accéder directement au contenu
Article Dans Une Revue Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques Année : 2021

Study of the formation and properties of In–CuPcF$_4$ nanocomposite materials in the mode of the millisecond recording of photoelectron spectra

Résumé

A study of the formation processes and properties of nanocomposite materials consisting of indium nanoparticles in a thin film of the organic semiconductor copper tetrafluorophthalocyanine (CuPcF$_4$) is presented. The results are obtained by the new setup for dynamic photoelectron spectroscopy, which allows the recording of spectra in a millisecond interval using the ARGUS photoelectron spectrometer and synchrotron radiation (PETRA III/DESY, Germany). The evolution of the core level (CL) spectra: C1s, N1s, and In3d 5/2 recorded directly during the deposition of indium onto the CuPcF$_4$ surface under ultrahigh vacuum conditions is traced. The thickness of the indium coating during deposition increased from 0 to 5 nm. In this range of coatings, more than 150 spectra are recorded for each CL with a recording rate of 0.1 s/spectrum. The following is established: the significant diffusion of indium atoms deep into the organic matrix is observed; in fact, no chemical interaction of indium with carbon atoms is found; indium atoms are located in places close to pyrrole nitrogen of the CuPcF$_4$ molecule. Apparently, during the interaction of In atoms and pyrrole nitrogen atoms, a negative charge is transferred from indium to the CuPcF$_4$ molecule. Thus, data on the fast-flowing processes of the formation of organometallic In-CuPcF$_4$ interfaces are obtained.
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cea-04482339 , version 1 (28-02-2024)

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V. Yu. Aristov, O V Molodtsova, I M Aristova, S V Babenkov, D V Potorochin, et al.. Study of the formation and properties of In–CuPcF$_4$ nanocomposite materials in the mode of the millisecond recording of photoelectron spectra. Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques, 2021, 15 (6), pp.1129 - 1132. ⟨10.1134/s1027451021060045⟩. ⟨cea-04482339⟩
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