Ossi Lehtinen



Opens window for sending emailOssi Lehtinen

Phone: +49 (0)731/50-22939

Room: N27 / 2.012

Research interest

  • High resolution imaging of 2D materials
  • Computer modeling of materials

Research project


Publication list

Scholar profile

[1] Ossi Lehtinen, Nilesh Vats, Gerardo Algara-Siller, Pia Knyrim, and Ute Kaiser. Implantation and atomic-scale investigation of self-interstitials in graphene. Nano Letters, 15(1):235-241, 2015. [ DOI ]
[2] Ossi Lehtinen, Hannu-Pekka Komsa, Artem Pulkin, Michael Brian Whitwick, Ming-Wei Chen, Tibor Lehnert, Michael J. Mohn, Oleg V. Yazyev, Andras Kis, Ute Kaiser, and Arkady V. Krasheninnikov. Atomic scale microstructure and properties of se-deficient two-dimensional mose2. ACS Nano, 2015. [ DOI ]
[3] Z. Lee, H. Rose, O. Lehtinen, J. Biskupek, and U. Kaiser. Electron dose dependence of signal-to-noise ratio, atom contrast and resolution in transmission electron microscope images. Ultramicroscopy, 145:3-12, 2014. [ DOI ]
[4] Gerardo Algara-Siller, Ossi Lehtinen, Andrey Turchanin, and Ute Kaiser. Dry-cleaning of graphene. Applied Physics Letters, 104(15):153115, 2014. [ DOI ]
[5] Ossi Lehtinen, I.-Ling Tsai, Rashid Jalil, Rahul R. Nair, Juhani Keinonen, Ute Kaiser, and Irina V. Grigorieva. Non-invasive transmission electron microscopy of vacancy defects in graphene produced by ion irradiation. Nanoscale, 6:6569-6576, 2014. [ DOI ]
[6] Ovidiu Cretu, Hannu-Pekka Komsa, Ossi Lehtinen, Gerardo Algara-Siller, Ute Kaiser, Kazu Suenaga, and Arkady V. Krasheninnikov. Experimental observation of boron nitride chains. ACS Nano, 8(12):11950-11957, 2014. [ DOI ]
[7] Ossi Lehtinen, Dorin Geiger, Zhongbo Lee, Michael Brian Whitwick, Ming-Wei Chen, Andras Kis, and Ute Kaiser. Numerical correction of anti-symmetric aberrations in single hrtem images of weakly scattering 2d-objects. Ultramicroscopy, 2014. [ DOI ]
[8] Sebastian Standop, Ossi Lehtinen, Charlotte Herbig, Georgia Lewes-Malandrakis, Fabian Craes, Jani Kotakoski, Thomas Michely, Arkady V. Krasheninnikov, and Carsten Busse. Ion impacts on graphene/ir(111): Interface channeling, vacancy funnels, and a nanomesh. Nano Letters, 13(5):1948-1955, 2013. [ DOI ]
[9] Martin Kalbac, Ossi Lehtinen, Arkady V. Krasheninnikov, and Juhani Keinonen. Ion-irradiation-induced defects in isotopically-labeled two layered graphene: Enhanced in-situ annealing of the damage. Advanced Materials, 25(7):1004-1009, 2013. [ DOI ]
[10] Hannu-Pekka Komsa, Simon Kurasch, Ossi Lehtinen, Ute Kaiser, and Arkady V. Krasheninnikov. From point to extended defects in two-dimensional mos2: evolution of the atomic structure under electron irradiation. Phys. Rev. B, 88:035301, 2013. [ DOI ]
[11] R. R. Nair, I-Ling Tsai, M. Sepioni, O. Lehtinen, J. Keinonen, A. V. Krasheninnikov, A. H. Castro Neto, M. I. Katsnelson, A. K. Geim, and I. V. Grigorieva. Dual origin of defect magnetism in graphene and its reversible switching by molecular doping. Nat. Comms., 4:2010, 2013. [ DOI ]
[12] O. Lehtinen, S. Kurasch, A. V. Krasheninnikov, and U. Kaiser. Atomic scale study of the life cycle of a dislocation in graphene from birth to annihilation. Nat. Comms., 4:2098, 2013. [ DOI ]
[13] E. H. Åhlgren, S. K. Hämäläinen, O. Lehtinen, P. Liljeroth, and J. Kotakoski. Structural manipulation of the graphene/metal interface with ar+ irradiation. Phys. Rev. B, 88:155419, Oct 2013. [ DOI ]
[14] Gerardo Algara-Siller, Simon Kurasch, Mona Sedighi, Ossi Lehtinen, and Ute Kaiser. The pristine atomic structure of mos2 monolayer protected from electron radiation damage by graphene. Applied Physics Letters, 103(20):203107, 2013. [ DOI ]
[15] Torbjörn Björkman, Simon Kurasch, Ossi Lehtinen, Jani Kotakoski, Oleg V. Yazyev, Anchal Srivastava, Viera Skakalova, Jurgen H. Smet, Ute Kaiser, and Arkady V. Krasheninnikov. Defects in bilayer silica and graphene: common trends in diverse hexagonal two-dimensional systems. Sci. Rep., 3:3482, 2013. [ DOI ]
[16] R. R. Nair, M. Sepioni, I-Ling Tsai, O. Lehtinen, J. Keinonen, A. V. Krasheninnikov, T. Thomson, A. K. Geim, and I. V. Grigorieva. Spin-half paramagnetism in graphene induced by point defects. Nat. Phys., 8:199-202, 2012. [ DOI ]
[17] Simon Kurasch, Jani Kotakoski, Ossi Lehtinen, Viera Skakalova, Jurgen Smet, Carl E. Krill, Arkady V. Krasheninnikov, and Ute Kaiser. Atom-by-atom observation of grain boundary migration in graphene. Nano Letters, 12(6):3168-3173, 2012. [ DOI ]
[18] E. H. Åhlgren, J. Kotakoski, O. Lehtinen, and A. V. Krasheninnikov. Ion irradiation tolerance of graphene as studied by atomistic simulations. Applied Physics Letters, 100(23):233108, 2012. [ DOI ]
[19] Hannu-Pekka Komsa, Jani Kotakoski, Simon Kurasch, Ossi Lehtinen, Ute Kaiser, and Arkady V. Krasheninnikov. Two-dimensional transition metal dichalcogenides under electron irradiation: Defect production and doping. Phys. Rev. Lett., 109:035503, Jul 2012. [ DOI ]
[20] O. Lehtinen, E. Dumur, J. Kotakoski, A.V. Krasheninnikov, K. Nordlund, and J. Keinonen. Production of defects in hexagonal boron nitride monolayer under ion irradiation. Nucl. Instrum. Methods Phys. Res., Sect. B, 269(11):1327 - 1331, 2011. INELASTIC ION-SURFACE COLLISIONS - Proceedings of the 18th International Workshop on Inelastic Ion-Surface Collisions (IISC-18). [ DOI ]
[21] O Lehtinen, J Kotakoski, A V Krasheninnikov, and J Keinonen. Cutting and controlled modification of graphene with ion beams. Nanotechnology, 22(17):175306, 2011.
[22] Ossi Lehtinen, Timur Nikitin, Arkady V Krasheninnikov, Litao Sun, Florian Banhart, Leonid Khriachtchev, and Juhani Keinonen. Characterization of ion-irradiation-induced defects in multi-walled carbon nanotubes. New Journal of Physics, 13(7):073004, 2011. [ DOI ]
[23] Ossi Lehtinen. Irradiation effects in graphene and related materials (PhD thesis). Helsinki University Printing House, 2011.
[24] Ossi Lehtinen, Timur Nikitin, Arkady V. Krasheninnikov, Litao Sun, Leonid Khriachtchev, Florian Banhart, Takeshi Terao, Dmitri Golberg, and Juhani Keinonen. Ion irradiation of multi-walled boron nitride nanotubes. Phys. Status Solidi C, 7(3-4):1256-1259, 2010. [ DOI ]
[25] O. Lehtinen, J. Kotakoski, A. V. Krasheninnikov, A. Tolvanen, K. Nordlund, and J. Keinonen. Effects of ion bombardment on a two-dimensional target: Atomistic simulations of graphene irradiation. Phys. Rev. B, 81(15):153401, Apr 2010. [ DOI ]
[26] J. Kotakoski, C. H. Jin, O. Lehtinen, K. Suenaga, and A. V. Krasheninnikov. Electron knock-on damage in hexagonal boron nitride monolayers. Phys. Rev. B, 82(11):113404, Sep 2010. [ DOI ]
[27] J. Kotakoski and O. Lehtinen. Nanomachining graphene with ion irradiation. Mater. Res. Soc. Symp. Proc, 1259:1259-S18-O2, 2010. [ DOI ]
[28] O. Lehtinen, L. Sun, T. Nikitin, A.V. Krasheninnikov, L. Khriachtchev, J.A. Rodriguez-Manzo, M. Terrones, F. Banhart, and J. Keinonen. Ion irradiation of carbon nanotubes encapsulating cobalt crystals. Physica E, 40(7):2618 - 2621, 2008. Proceedings of the E-MRS 2007 Symposia L and M: Electron Transport in Low-Dimensional Carbon Structures and Science and Technology of Nanotubes and Nanowires. [ DOI ]