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

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

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

Ferrihydrite surface functionalization of anatase TiO2 nanoparticles as flower-like core-shell heterostructure with enhanced visible-light-driven photocatalytic properties
Authors: Gherca, D; Borhan, AI; Herea, DD; Minuti, AE; Stavila, C; Danceanu, CM; Popescu, DG; Borca, CN; Huthwelker, T; Stoian, G; Chiriac, H; Polo, CG; Ababei, G; Lupu, N

Published: JUL 15 2025, SURFACES AND INTERFACES, 69, 106745, DOI: 10.1016/j.surfin.2025.106745

Nb2C Mxene as a bifunctional acid-base and oxidation/hydrogenation catalyst
Authors: Pavel, O; Tirsoaga, A; Cojocaru, B; Popescu, D; Ramírez-Grau, R; González-Durán, P; García-Aznar, P; Tian, L; Sastre, G; Primo, A; Parvulescu, V; Garcia, H

Published: JUL 3 2025, EES CATALYSIS, 3, DOI: 10.1039/d5ey00004a

Designing TiO2@FexOy magnetic core-shell catalyst with 3D flower-like surface morphology preservation for enhanced photocatalytic performance
Authors: Gherca, D; Roman, T; Popescu, DG; Borhan, AI; Herea, DD; Stoian, G; Chiriac, H; Ababei, G; Lupu, N

Published: JUL 1 2025, APPLIED SURFACE SCIENCE, 696, 163003, DOI: 10.1016/j.apsusc.2025.163003


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