Synthesis and Real Structure Group

Dr. rer. nat. Andriy Lotnyk

Dr. rer. nat. Andriy Lotnyk

 

Former position: TEM Coordinator

 

Publications

 

1. Lotnyk, S. Senz, D. Hesse: BaTiO3 formation by solid-state reactions on rutile single crystals, Diffusion Fundamentals 2 (2005), 51.1

2. Lotnyk, S. Senz, D. Hesse: Growth and characterization of (012)- and (001)-oriented epitaxial anatase thin films, Advances in Science and Technology 46 (2006), 146

3. A. Lotnyk, S. Senz, D. Hesse: Formation of BaTiO3 thin films from (110) TiO2 rutile single crystals and BaCO3 by solid state reactions, Solid State Ionics 177 (2006), 429

4. A. Lotnyk, S. Senz, D. Hesse: Epitaxial growth of TiO2 thin films on SrTiO3, LaAlO3 and yttria-stabilized zirconia substrates by electron beam evaporation, Thin Solid Films 515 (2007), 3439

5. A. Lotnyk, S. Senz, D. Hesse: Thin-film solid-state reactions of solid BaCO3 and BaO vapor with (100) rutile substrates, Acta Materialia 55 (2007), 2671

6. A. Lotnyk, S. Senz, D. Hesse: Orientation relationships of SrTiO3 and MgTiO3 thin films grown by vapor-solid reactions on (100) and (110) TiO2 (rutile) single crystals, J. Phys. Chem. C 111 (2007), 6372

7. D.S. Kim, J. Fallert, A. Lotnyk, R. Scholz, E. Pippel, S. Senz, H. Kalt, U. Gösele, M. Zacharias: Growth and optical properties of phosphorus-doped ZnO nanowires, Solid State Communications 143 (2007), 570

8. K. Boldyreva, L. Pintilie, A. Lotnyk, I.B. Misirlioglu, M. Alexe, D. Hesse: Thickness-driven antiferroelectric-to-ferroelectric phase transition of thin PbZrO3 layers in epitaxial PbZrO3/Pb(Zr0.8Ti0.2)O3 multilayers, Appl. Phys. Lett. 91 (2007), 122915

9. A. Lotnyk, S. Senz, D. Hesse, Kirkendall-like voids produced by surface diffusion. Microsc. Microanal. 13 (2007), 380

10. J. Bauer, O. Breitenstein, A. Lotnyk, H. Blumtritt, Investigations on different types of filaments in multicrystalline silicon for solar cells. In: Proceedings of the 22nd European Photovoltaic Solar Energy Conference and Exhibition, Milano, Italy, 2007, 994-997

11. K. Boldyreva, L. Pintilie, A. Lotnyk, I.B. Misirlioglu, M. Alexe, D. Hesse: Thickness-driven antiferroelectric-to-ferroelectric transition in ultrathin PbZrO3 layers within Pb(Zr0:8Ti0:2)O3/PbZrO3 epitaxial multilayers, Annual report of Max Planck Institute of Microstructure Physics 2007,  42-43

12. H.J. Fan, A. Lotnyk, R. Scholz, Y. Yang, D.S. Kim, E. Pippel, S. Senz, D. Hesse, M. Zacharias, Surface reaction of ZnO nanowires with electron-beam generated alumina vapour, Journal of Physical Chemistry C 112 (2008), 6770

13. I. Vrejoiu, M. Ziese, A. Setzer, P.D. Esquinazi, B.I. Birajdar, A. Lotnyk, M. Alexe, D. Hesse: Interfacial strain effects in epitaxial multiferroic heterostructures of  PbZrxTi1-xO3/La0.7Sr0.3MnO3 grown by pulsed-laser deposition, Appl. Phys. Lett. 92 (2008), 152506

14. M. Ziese, I. Vrejoiu, A. Setzer, A. Lotnyk, D. Hesse: Coupled magnetic and structural transitions in La0.7Sr0.3MnO3 films on SrTiO3, NJP 10 (2008), 063024

15. W. Lee, H. Han, A. Lotnyk, M.A. Schubert, S. Senz, M. Alexe, D. Hesse, S. Baik, U. Gösele: Individually addressable epitaxial ferroelectric nanocapacitor arrays with near Tb inch-2 density, Nature Nanotech. 3 (2008), 402

16. A. Lotnyk, A. Graff, S. Senz, N.D. Zakharov, D. Hesse: Topotaxial formation of titanium-rich barium titanates during solid state reactions on (110) TiO2 (rutile) and (001) BaTiO3 single crystals, Solid State Sciences 10 (2008), 702

17. A. Lotnyk, J. Bauer, O. Breitenstein, H. Blumtritt: A TEM study of SiC particles and filaments precipitated in multicrystalline Si for solar cells, Sol. Energy Mater.  Sol. Cells 92 (2008), 1236

18. D. Hesse, M. Alexe, K. Boldyreva, H. Han, W. Lee, A. Lotnyk, B.J. Rodriguez, S. Senz et al.: Ferroelectric materials and structures suitable for data storage: The role of microscopies in establishing preparation-microstructure-property relations. In: EMC 2008, Vol. 2,101-102

19. O. Breitenstein, J. Bauer, J.-M. Wagner, A. Lotnyk: Imaging Physical Parameters of Pre-Breakdown Sites by Lock-in Thermography Techniques, Progress in Photovoltaics: Research and Applications 16 (2008), 679

20. J.-M. Wagner, J. Bauer, O. Breitenstein, A. Lotnyk: Pre-Breakdown Mechanisms in Multicrystalline Silicon Solar Cells. In: Proceedings of the 23rd European Photovoltaic Solar Energy Conference and Exhibition, Valencia, Spain, 2008, 1164-1168

21. A. Lotnyk, J. Bauer, O. Breitenstein, H. Blumtritt: SiC precipitates in block-cast multicrystalline silicon: A TEM characterization. In: Proceedings of the 23rd European Photovoltaic Solar Energy Conference and Exhibition,  Valencia, Spain, 2008, 1406-1409

22. K. Boldyreva, L. Pintilie, A. Lotnyk, I.B. Misirlioglu, M. Alexe, D. Hesse: Ferroelectric/antiferroelectric epitaxial PbZrO3/Pb(Zr0.8Ti0.2)O3 multilayers: growth and thickness-dependent properties, Ferroelectrics 370 (2008), 140

23. W. Lee, A. Lotnyk, M. A. Schubert, S. Senz, M. Alexe, and D. Hesse, H. Han and S. Baik: Individually addressable epitaxial ferroelectric nanocapacitor arrays with near Tb/inch2 memory density, Annual report of Max Planck Institute of Microstructure Physics 2008, 36-37

24.O. Breitenstein, J. Bauer, A. Lotnyk, J.-M. Wagner: Defect induced non-ideal dark I-V characteristics of solar cells, Superlattices Microstr. 45 (2009), 182

25. J. Bauer, J.-M. Wagner, A. Lotnyk, H. Blumtritt, B. Lim, J. Schmidt, O. Breitenstein: Hot spots in multicrystalline silicon solar cells: Avalanche breakdown due to etch pits, Physica Status Solidi RRL 3 (2009), 40

26. A. Lotnyk, S. Senz, D. Hesse:  First phase selection during interfacial reactions in oxide systems Volume 3: Materials Science, ISBN 978-3-85125-062-6, DOI 10.3217/978-3-85125-062-6, Verlag der TU Graz 2009, 415-416

27. L. Kienle, A. Lotnyk, V, Duppel, F. Beiroth, B. Hessler, K. Gerwien, W. Bensch: Characterization of 0-3 nanocomposites by means of HRTEM, MC 2009 Graz, Volume 3: Materials Science, ISBN 978-3-85125-062-6, DOI 10.3217/978-3-85125-062-6, Verlag der TU Graz 2009, 133-134

28. A. Lotnyk, L. Kienle, Z. Huang, W. Bensch, S. Fuentes, J. Bocarando, G. Alonso, C. Ornelas: A TEM study of Ni-MoS2- and Co-MoS2-based HDS catalysts supported on SBA 15, MC 2009 Graz, Volume 3: Materials Science, ISBN 978-3-85125-062-6, DOI 10.3217/978-3-85125-062-6, Verlag der TU Graz 2009, 131-132

29. A. Lotnyk, L. Kienle, S. Jebril, Y.K. Mishra, R. Adelung, V. Duppel: A TEM investigation of twinning in ZnO nano-spikes, MC 2009 Graz, Volume 3: Materials Science, ISBN 978-3-85125-062-6, DOI 10.3217/978-3-85125-062-6, Verlag der TU Graz 2009, 187-188

30. V.S.K. Chakravadhanula, A. Lotnyk, Y.K. Mishra, T. Hrkac, V. Zaporojtchenko, D. K. Avasthi, D. Fink, L. Kienle, F. Faupel: Formation of TiO - Single Crystals in Ag-TiO2 based Nanocomposites by Swift Heavy Ion Irradiation, MC 2009 Graz, Volume 3: Materials Science, ISBN 978-3-85125-062-6, DOI 10.3217/978-3-85125-062-6, Verlag der TU Graz 2009, 111-112

31. V. S. K. Chakravadhanula, A. Kulkarni, A. Lotnyk, V. Duppel, V. Zaporojtchenko, L. Kienle, F. Faupel: Morphological properties of TiO2 / Fe50Co50 composite films, MC 2009 Graz, Volume 3: Materials Science, ISBN 978-3-85125-062-6, DOI 10.3217/978-3-85125-062-6, Verlag der TU Graz 2009, 149-150

32. A. Lotnyk, H. Blumtritt, J. Bauer, O. Breitenstein: FIB preparation and TEM characterization of Si3N4 precipitates grown in multicrystalline Si for solar cell application,  MC 2009 Graz, Volume 1: Instrumentation and Methodology, ISBN 978-3-85125-062-6, DOI 10.3217/978-3-85125-062-6, Verlag der TU Graz 2009, 241-242

33. D. Hesse, M. Alexe, H. Han, W. Lee, A. Lotnyk, S. Senz, M.A. Schubert, I. Vrejoiu, U. Gösele:    Ferroelektrische Nanokondensatoren, Jahrbuch der Max-Planck-Gesellschaft  2009

34. W. Kwapil, M. Kasemann, W. Warta, O. Breitenstein, J. Bauer, J.-M. Wagner, H. Blumtritt, A. Lotnyk: Physical Mechanisms of Breakdown in Multicrystalline Silicon Solar Cell, In Proceedings of the 24th European Photovoltaic Solar Energy Conference and Exhibition,  Hamburg, Germany, 2009, 896-900