1) “EPR Studies of low symmetry complexes in CaF2: Gd3+ Single Crystals”, N.Guskos, S.Paraskevas, C.Trikalinos, A.Kontos and W. Likodimos, V National Solid State Conf. Xanthi 09-1989, p. 233.
2) “EPR studies of Pr0.5RE0.5Ba2Cu3Ox (6<x) compounds)”, N.Guskos, S.Paraskevas, A.Kontos, A.Koufoudakis, C.Mitros, H.Gamari-Seale and D.Niarchos, V National Physics Conf. Athens 11-16/12 1989.
3) “Comparison of the EPR spectra in ceramics Pr0.5Nd0.5Ba2Cu3O7-δ in orthorhombic and tetragonal phase” N. Guskos, C. Tricalinos, A.G. Kontos, A. Koufoudakis, C. Mitros, H. Gamari-Seal, D. Niarchos and S. Paraskevas, E-MRS Spring Conf. Symposium A, High-Tc Superconducting Materials, Strassburg 29 May-1 June 1990, (A VII-64).
4) “Elastic strains in ZnSe heterostructures and ZnS superlattices”. A.G.Kontos, M.Siakavellas, Y. Raptis and E.Anastassakis, XIII National Solid State Conf. Thessaloniki 09-1997, p. 173.
5) “Strain characterisation of Boron-doped Si membranes used in pressure sensors”, A.G. Kontos. Y. Raptis. E. Anastassakis D. Goustouridis and D. Tsoukalas, ΧΙV National Solid State Conf. Ioannina 09-1998, p. 203.
6) “Elastic deformation of overcritical ZnSe/GaAs heterostructures”, A.G.Kontos, N. Chrysanthacopoulos, M. Calamiotou and E. Anastassakis, ΧΙV National Solid State Conf. Ioannina, 09-1998 p. 199.
7) “Parameters influencing the flatness and stability of capacitive pressure sensors fabricated with wafer bonding” D. Goustouridis, D. Tsoukalas, P. Normand, A.G. Kontos, Y. Raptis, and E. Anastassakis, Eurosensors XI (1998).
8) “A Raman spectroscopic analysis of Si microstructures”, A. G. Kontos, V. Stergiou, S. Polimenakos, C. Chamis, Y.S. Raptis and D. Tsoukalas, XVI National Solid State Conf. Nafplio 09-2000, p. 580.
9) “XRD and Raman spectroscopy on (111) ZnSe/GaAs heterostructures” A.G. Kontos, N. Chrysanhakopoulos and M. Kalamiotou, ΧVI National Solid State Conf. Nafplio 09-2000, p. 195.
10) “Influence of Ge implantation on the mechanical properties of polycrystalline Si microstructures”, S. Polymenakos, V. Stergiou, A.G. Kontos, C. Tsamis, and D. Tsoukalas, Transducers Athens (2001)
11) “Characterization of polycrystalline Si microstructures doped with Ge under static and dynamic deformations ” A. G. Kontos, S. Polimenakos, V. Stergiou, C. Chamis, Y.S. Raptis and D. Tsoukalas, XVII National Solid State Conf., Xanthi 9-2001, p.191
12) “Μicro-Raman investigation of ZnSeTe epilayers grown on InP substrates with ZnCdSe buffer layers”, A. G. Kontos, Y.S. Raptis, M. Strassburg and U.W.Pohl, XVII National Solid State Conf., Xanthi 9-2001, p.195
13) “Influence of technological parameters of polycrystalline Si growth in micromechanical sensors”, A. Mitsinakis, M. Kotsani, D. Girginoudi, N. Georgoulas, A. G. Kontos, V. C. Stergiou and Y.S. Raptis, XVII National Solid State Conf., Xanthi 9-2001, p.208
14) “Structural studies on ZnSe/GaAs heteroepitaxial layers”, U. W Pohl, M. Calamiotou and A. G. Kontos, Anastassakis Symposium, Athens, Sept. 2001.
15) “Growth and p-type doping of ZnSeTe on InP”, Matthias Straßburg, Martin Straßburg, O. Schulz, U. W. Pohl, A. Hoffmann, D. Bimberg, A.G. Kontos, and Y.S. Raptis, (presented in the ICMOVPE conference, Berlin, May 2002).
16) “Raman study of nitrogen-doped ZnSSe/GaAs epilayers”, A.G. Kontos, Y.S. Raptis, M. Straßburg, U.W. Pohl and D. Bimberg, (presented in the E-MRS Spring Meeting, Strasbourg, 18-21 June 2002).
17) “An ESR study of a Ce3+:Na+:LiSrAlF6 single crystal”, A.G.Kontos, G. Tsaknakis, A Papayannis, E. Landulfo, S.L. Baldochi, E. Barbosa, and N.D. Vieira Jun., (presented in the Laser Physics and Applications Conf., Varna, 23-28 Sept. 2002.)
18) “In-situ monitoring of semiconductor growth by Raman spectroscopy”, A.G. Kontos, K. Hinrichs, D. Papadimitriou and N. Esser, (accepted in the Proceedings of the Test and Measurements Conf. in China 2003)
19) “Micro-Raman characterization of InGaN/GaN/Al2O3 heterostructures”, A.G.Kontos, Y Raptis, A. Georgakilas, Dimocas and N. Pelekanos, presented in the XIX National Solid State Conf., Thessaloniki (2003).
20) “Efficient Photocatalysis by hydrothermal treatment of TiO2”, A.I. Kontos, I.M. Arabatzis, D.S. Tsoukleris, A.G. Kontos, M.C. Bernard, D.E. Petrakis and P. Falaras., presented in the 3rd European Meeting on Solar Chemistry and Photocatalysis: Environmental Applications, Barcelona 30June-2 July 2004.
21) 2-ethyl-1-hexanol based screen printing titania thin films for dye sensitized solar cells, D.S. Tsoukleris, I.M. Arabatzis, E. Chatzivasiloglou, A.I. Kontos, A.I. Philippopoulos, T. Stergiopoulos, A.G. kontos and P. Falaras, presented in the 3rd European Meeting on Solar Chemistry and Photocatalysis: Environmental Applications, Barcelona 30June-2 July 2004.
22) “7Li NMR characterization of quasi solid state PEO composite electrolytes”, A.G. Kontos, T. Stergiopoulos, M. Fardis, G. Papavasilliou and P. Falaras, presented in the 55th Annual Meeting of the International Electrochemical Society, Thessaloniki, 19-24 Sept. 2004.
23) “Photocatalysis and superhydrophilicity of sol-gel TiO2 thin films”, E.S. Kioutouktsis, A.I. Kontos, I.M. Arabatzis, D.S. Tsoukleris, A.G. Kontos, G.D. Vlachos, and P. Falaras. (2nd international Exergy, Energy and Environment Symporium (IEEES2), 3-7 July 2005, KOS-Greece)
24) Application of sol-gel method techniques on the preparation of nanocrystalline films by commercial titania powder, A.I. Kontos, D.S. Tsoukleris, A.G. Kontos, I.M. Arabatzis, and P. Falaras, presented in the 2nd conference on porous materials, Athens, September 2005.