National Institute Of Materials Physics - Romania
Laboratory of Surface and Interface Science

Main research directions:

  • Surface and interface analysis by photoelectron spectroscopies (XPS‒ESCA, ARUPS, spin-resolved PES, PED) in situ electron diffraction (LEED, RHEED), Auger electron spectroscopy (AES),  scanning tunneling microscopy and spectroscopy (STM‒STS), photoelectron spectromicroscopy, low energy and photoemission electron microscopy (LEEM‒PEEM);
  • Surfaces, thin films and heterostructure preparation by molecular beam beam epitaxy (MBE) or other vacuum evaporation techniques.

New subjects:

  • analysis of ferroelectric surfaces, band bending in heterostructures;
  • molecular reactions at ferroelectric surfaces;
  • in plane conduction properties of 2D systems on ferroelectric surfaces;
  • ‘2D nanoreactors', molecular reactions with reactants stabilized between graphene layers and substrates;
  • spin asymmetry in band structure of 2D systems;
  • photocatalysts with internal junctions;
  • multiferroic structures with indirect exchange or coupling through charge accumulation;
  • theoretical developments in the area of ferroic thin films (ferroelectric, ferromagnetic);
  • development of new devices operating in ultrahigh vacuum (effusion cells, evaporators, manipulators);
  • development of software packages for data analysis.


Latest Publications

Ti-zeolite Y based nanocomposites modified with Au and CeO2 with photocatalytic activity in visible light
Authors: Petcu, G; Anghel, EM; Atkinson, I; Papa, F; Apostol, NG; Baran, A; Petrescu, S; Trica, B; Tenchev, K; Todorova, S; Parvulescu, V

Published: NOV 1 2025, CATALYSIS TODAY, 459, 115403, DOI: 10.1016/j.cattod.2025.115403

Investigations on HfO2/n-GaAs(110) interface, in-situ obtained by Oxide-MBE
Authors: Negrila, CC; Cotirlan, C; Iancu, AC; Popescu, DG; Palade, C; Trupina, L

Published: NOV 1 2025, MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 198, 109746, DOI: 10.1016/j.mssp.2025.109746

Improved sulfurization process for enhancing the microstructure and transport properties of spray pyrolysis-deposited Cu2ZnSnS4 films
Authors: El Khouja, O; Popescu, B; Assahsahi, I; Negrila, CC; Leonat, LN; Nouneh, K; Touhami, ME; Galatanu, A; Galca, AC

Published: NOV 2025, CERAMICS INTERNATIONAL, 51, DOI: 10.1016/j.ceramint.2025.08.041

Steady state negative capacitance in p-n ferroelectric junctions
Authors: Boni, AG; Chirila, CF; Filip, LD; Botea, MI; Radu, C; Popescu, DG; Husanu, MA; Hrib, L; Trupina, L; Pintilie, I; Pintilie, L

Published: OCT 1 2025, ACTA MATERIALIA, 298, 121177, DOI: 10.1016/j.actamat.2025.121177

Effect of Modifying NiNbO Catalyst with Tetravalent (Sn, Ti) and Pentavalent (Sb, Ta) Cations on Its Ethane Oxidative Dehydrogenation Performance
Authors: Ivan, SB; Popescu, I; Negrila, C; Papa, F; Loridant, S; Marcu, IC

Published: SEP 24 2025, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 64, DOI: 10.1021/acs.iecr.5c01954


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