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Author

  • Ferdinand Hofer
2020

Microstructural changes induced by Er and Zr additions to A356 alloy investigated by thermal analyses and STEM observations

Colombo, M., Albu, M., Gariboldi, E. & Hofer, F., 2020, In : Materials characterization. 161, 7 p., 110117.

Research output: Contribution to journalArticleResearchpeer-review

2019

Advanced characterization of alloys by using ex-and in-situ high resolution Scanning Transmission Electron Microscopy

Albu, M., Kothleitner, G. & Hofer, F., 2019, European Materials Reserch Society. p. Z 6.12

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Analytical Electron Microscopy: Recent Advances and New Applications

Hofer, F., Albu, M., Grogger, W., Haberfehlner, G., Knez, D., Lammer, J., Schmidt, F. & Kothleitner, G., 2019, Proceedings-14th Multinational Congress on Microscopy, Belgrad-Serbia, Sept. 15-20 2019. p. 66-67

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Effects of the Core Location on the Structural Stability of Ni-Au Core-Shell Nanoparticles

Schnedlitz, M., Fernandez-Perea, R., Knez, D., Lasserus, M., Schiffmann, A., Hofer, F., Hauser, A. W., De Lara-Castells, M. P. & Ernst, W. E., 15 Aug 2019, In : Journal of Physical Chemistry C. 123, 32, p. 20037-20043 7 p.

Research output: Contribution to journalArticleResearchpeer-review

Electron Beam Induced Dynamics in Experiment and Simulation

Knez, D., Haberfehlner, G., Kothleitner, G. & Hofer, F., 2019, Abstract MC2019.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Elemental Nanoanalysis of Interfacial Alumina–Aryl Fluoride Interactions in Fullerene-Free Organic Tandem Solar Cells

Hoefler, S. F., Haberfehlner, G., Rath, T., Canteri, R., Barozzi, M., Hofer, F. & Trimmel, G., 16 Aug 2019, In : Advanced Materials Interfaces . 9 p., 1901053.

Research output: Contribution to journalArticleResearchpeer-review

Open Access

Elucidation of Donor:Acceptor Phase Separation in Nonfullerene Organic Solar Cells and Its Implications on Device Performance and Charge Carrier Mobility

Hoefler, S. F., Haberfehlner, G., Rath, T., Keilbach, A., Hobisch, M. A., Dixon, A., Pavlica, E., Bratina, G., Kothleitner, G., Hofer, F. & Trimmel, G., 28 Oct 2019, In : ACS Applied Energy Materials. 2, 10, p. 7535-7545 11 p.

Research output: Contribution to journalArticleResearchpeer-review

Greatly enhanced luminescence efficiency of CdS nanoparticles in aqueous solution

Kuznetsova, Y. V., Letofsky-Papst, I., Sochor, B., Schummer, B., Sergeev, A. A., Hofer, F. & Rempel, A. A., 20 Nov 2019, In : Colloids and Surfaces A: Physicochemical and Engineering Aspects. 581, 123814.

Research output: Contribution to journalArticleResearchpeer-review

Improvements in Environmental Scanning Electron Microscopy –Universal Pressure Scanning Electron Microscopy (UPSEM)

Rattenberger, J., Fitzek, H. M., Schröttner, H. & Hofer, F., 2019, Proceedings-14th Multinational Congress on Microscopy, Belgrad-Serbia, Sept. 15-20 2019. p. 104-106

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Influence of surface properties of nitrocarburised and oxidised steel on its tribological behaviour

Velkavrh, I., Äusserer, F., Klien, S., Voyer, J., Lingenhöle, K., Kafexhiu, F., Mandrino, D., Podgomik, B., Rattenberger, J., Schröttner, H., Hofer, F. & Diem, A., 1 Jan 2019, In : Tribologie und Schmierungstechnik. 66, 1, p. 25-33 9 p.

Research output: Contribution to journalArticleResearchpeer-review

Multiscale and Correlative Analytical Electron Microscopy of Extraterrestrial Minerals

Albu, M., Zankel, A., Fitzek, H. M., Dienstleder, M., Simic, S., Hofer, F. & Kothleitner, G., 2019, Deutsche Astrobiologische Gesellschaft-Workshop. p. 36

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Nanomaterials Synthesized in Helium Droplets

Ernst, W. E., Hauser, A., Lackner, F., Knez, D. & Hofer, F., May 2019, p. 226.

Research output: Contribution to conferenceAbstractResearchpeer-review

On the Impact of Swift Electrons on Mass Transport Phenomena at the Nanoscale

Knez, D., Schnedlitz, M., Lasserus, M. I., Schiffmann, A., Ernst, W. E., Hofer, F. & Kothleitner, G., Apr 2019, Workshop Handbook: Program & Abstract. p. 47

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

On the passivation of iron particles at the nanoscale

Lasserus, M., Knez, D., Schnedlitz, M., Hauser, A. W., Hofer, F. & Ernst, W. E., 1 Jan 2019, In : Nanoscale Advances. 1, 6, p. 2276-2283 8 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access

Spectroscopic STEM imaging in 2D and 3D

Kothleitner, G., Albu, M., Grogger, W., Haberfehlner, G. & Hofer, F., Feb 2019, 2 p.

Research output: Other contributionResearch

Structural characterization of poly-Si Films crystallized by Ni Metal Induced Lateral Crystallization

Vouroutzis, N., Stoemenos, J., Frangis, N., Radnóczi, G. Z., Knez, D., Hofer, F. & Pécz, B., 1 Dec 2019, In : Scientific Reports. 9, 1, 2844.

Research output: Contribution to journalArticleResearchpeer-review

Open Access

Synthesis of nanosized vanadium(v) oxide clusters below 10 nm

Lasserus, M., Knez, D., Lackner, F., Schnedlitz, M., Messner, R., Schennach, D., Kothleitner, G., Hofer, F., Hauser, A. W. & Ernst, W. E., 1 Jan 2019, In : Physical Chemistry Chemical Physics. 21, 37, p. 21104-21108 5 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access

The impact of swift electrons on the segregation of Ni-Au nanoalloys

Knez, D., Schnedlitz, M., Lasserus, M., Hauser, A., Ernst, W. E., Hofer, F. & Kothleitner, G., 16 Sep 2019, In : Applied Physics Letters. 115, 12, 123103.

Research output: Contribution to journalArticleResearchpeer-review

Towards new plasmonic materials: Synthesis of K and K-Au nanoparticles with helium nanodroplets

Messner, R., Knez, D., Hofer, F., Ernst, W. E. & Lackner, F., Jun 2019. 1 p.

Research output: Contribution to conferenceAbstractResearchpeer-review

Towards new plasmonic materials: Synthesis of K and K-Au nanoparticles with helium nanodroplets

Messner, R., Knez, D., Hofer, F., Ernst, W. E. & Lackner, F., May 2019, p. 72.

Research output: Contribution to conferenceAbstractResearchpeer-review

Ultra-thin h-BN substrates for nanoscale plasmon spectroscopy

Schiffmann, A., Knez, D., Lackner, F., Lasserus, M., Messner, R., Schnedlitz, M., Kothleitner, G., Hofer, F. & Ernst, W. E., 2019, In : Journal of Applied Physics. 125, 2, p. 023104-1-023104-8 9 p., 023104.

Research output: Contribution to journalArticleResearchpeer-review

Universal Pressure Scanning Electron Microscopy (UPSEM) - Improvements in Environmental Scanning Electron Microscopy

Rattenberger, J., Fitzek, H. M., Achtsnit, T., Schröttner, H. & Hofer, F., 2019, Abstract MC 2019. p. 367

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2018

Adatom dynamics and the surface reconstruction of Si(110) revealed using time-resolved electron microscopy

Furnival, T., Knez, D., Schmidt, E., Leary, R. K., Kothleitner, G., Hofer, F., Bristowe, P. D. & Midgley, P., 2018, In : Applied Physics Letters. 113, 18, p. 183104

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File

Atoms in motion: electron beam induced dynamics of metallic clusters in experiment & simulation

Knez, D., Fisslthaler, E., Hofer, F., Schnedlitz, M., Lasserus, M. I., Schiffmann, A. & Ernst, W. E., Feb 2018. 1 p.

Research output: Contribution to conferenceAbstractResearchpeer-review

Copper-alumina nanocomposites derived from CuAlO2: Phase transformation and microstructural coarsening

Kracum, M. R., Marvel, C. J., Albu, M., Hofer, F., Harmer, M. P. & Chan, H., 2018, In : Journal of the American Ceramic Society. 101, 12, p. 5801 5810 p.

Research output: Contribution to journalArticleResearchpeer-review

Core-Shell Nanoparticles for Plasmonics and Catalysis

Schiffmann, A., Schnedlitz, M., Lasserus, M. I., Messner, R., Lackner, F., Hauser, A., Knez, D., Hofer, F. & Ernst, W. E., Oct 2018. 1 p.

Research output: Contribution to conferenceAbstractResearchpeer-review

Core-shell nanoparticles prepared in superfluid helium droplets: structure, phase transitions, and alloy formation

Schiffmann, A., Schnedlitz, M., Lasserus, M. I., Messner, R., Lackner, F., Meyer, R., Hauser, A., Knez, D., Hofer, F. & Ernst, W. E., Oct 2018. 1 p.

Research output: Contribution to conferenceAbstractResearchpeer-review

Electron Beam Driven Dynamics in Experiment and Simulation

Knez, D., Schnedlitz, M., Lasserus, M. I., Ernst, W. E. & Hofer, F., 2018, Program & Abstract Book. p. 34

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Functional plasmonic nanostructures obtained from helium droplet synthesis

Lackner, F., Schiffmann, A., Lasserus, M. I., Messner, R., Schnedlitz, M., Fitzek, H. M., Pölt, P., Knez, D., Hofer, F. & Ernst, W. E., Aug 2018. 1 p.

Research output: Contribution to conferenceAbstractResearchpeer-review

Helium Nanodroplet Based Synthesis of Tailored Nanoparticles for Surface Enhanced Raman Spectroscopy

Lackner, F., Schiffmann, A., Lasserus, M. I., Messner, R., Schnedlitz, M., Fitzek, H. M., Pölt, P., Knez, D., Hofer, F. & Ernst, W. E., Sep 2018, 68th Annual Meeting of the Austrian Physical Society. Graz: Verlag der Technischen Universität Graz, p. 83

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

How dark are radial breathing modes in Plasmonic Nanodisks?

Schmidt, F., Losquin, A., Hofer, F., Hohenau, A., Krenn, J. & Kociak, M., 2018, In : ACS Photonics. 5, 3, p. 861-866

Research output: Contribution to journalArticleResearch

Modelling electron beam induced dynamics in metallic nanoclusters

Knez, D., Schnedlitz, M., Lasserus, M. I., Schiffmann, A., Ernst, W. E. & Hofer, F., 2018, In : Ultramicroscopy. 192, p. 69-79

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File

On the Unexpected Alloying Behaviour of Ni-Au and Co-Au Core-Shell Nanoparticles,

Hauser, A., Schnedlitz, M., Lasserus, M. I., Meyer, R., Ernst, W. E., Knez, D., Hofer, F., Fernandez-Perea, R. & De Lara-Castells, M. P., Dec 2018, p. 1.

Research output: Contribution to conferenceAbstractResearchpeer-review

Phase decomposition of La2NiO4+δ under Cr- and Si-poisoning conditions

Schrödl, N., Egger, A., Gspan, C., Höschen, T., Hofer, F. & Sitte, W., 2018, In : Solid State Ionics. 322, p. 44-53

Research output: Contribution to journalArticleResearchpeer-review

Plasmonic Properties of Ag@Au core@shell Nanoparticles and Nanostructures Formed by Helium Droplet Synthesis

Lackner, F., Schiffmann, A., Schnedlitz, M., Lasserus, M. I., Messner, R., Ernst, W. E., Fitzek, H. M., Pölt, P., Knez, D. & Hofer, F., Feb 2018. 1 p.

Research output: Contribution to conferenceAbstractResearchpeer-review

Plasmon spectroscopy of metallic nanoparticles on ultra-thin h-BN films

Schiffmann, A., Knez, D., Lackner, F., Lasserus, M. I., Messner, R., Schnedlitz, M., Hofer, F. & Ernst, W. E., Sep 2018, 68th Annual Meeting of the Austrian Physical Society. Graz: Verlag der Technischen Universität Graz, p. 83

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Properties of nitrocarburised and oxidised steel surfaces and the correlation with their tribological behaviour under unlubricated sliding conditions

Velkavrh, I., Ausserer, F., Klien, S., Voyer, J., Lingenhöle, K., Kafexhiu, F., Mandrino, D., Podgornik, B., Rattenberger, J., Schröttner, H. & Hofer, F., 2018, In : Wear. 410-411, p. 127-141

Research output: Contribution to journalArticleResearchpeer-review

Stability of Core-Shell Nanoparticles for Catalysis at Elevated Temperatures: Structural Inversion in the Ni-Au System Observed at Atomic Resolution

Schnedlitz, M., Lasserus, M., Meyer, R., Knez, D., Hofer, F., Ernst, W. E. & Hauser, A. W., 13 Feb 2018, In : Chemistry of Materials. 30, 3, p. 1113-1120 8 p.

Research output: Contribution to journalArticleResearchpeer-review

Structural disorder of natural BimSen superlattices grown by molecular beam epitaxy

Springholz, G., Wimmer, S., Groiss, H., Albu, M., Hofer, F., Caha, O., Kriegner, D., Stangl, J., Bauer, G. & Holy, V., 2018, In : Physical Review / B. 2, 5, p. 054202 14 p.

Research output: Contribution to journalArticleResearch

Temperature studies of Ni@Au and Co@Au core@shell systems on the nanoscale

Schiffmann, A., Schnedlitz, M., Meyer, R., Lasserus, M. I., Messner, R., Lackner, F., Hauser, A., Ernst, W. E., Knez, D. & Hofer, F., Feb 2018. 1 p.

Research output: Contribution to conferenceAbstractResearchpeer-review

Temperature Studies of Ni@Au and Co@Au Core@Shell Systems on the Nanoscale

Schiffmann, A., Schnedlitz, M., Meyer, R., Lasserus, M. I., Messner, R., Lackner, F., Knez, D., Hofer, F., Hauser, A. & Ernst, W. E., 6 Feb 2018.

Research output: Contribution to conferencePosterResearch

Thermally induced alloying processes in a bimetallic system at the nanoscale: AgAu sub-5 nm core-shell particles studied at atomic resolution

Lasserus, M., Schnedlitz, M., Knez, D., Messner, R., Schiffmann, A., Lackner, F., Hauser, A. W., Hofer, F. & Ernst, W. E., 2018, In : Nanoscale. 10, 4, p. 2017-2024 8 p.

Research output: Contribution to journalArticleResearchpeer-review

Thermally induced alloying process in core@shell AgAu particles: A new method to measure diffusion on the nanoscale

Lasserus, M. I., Schnedlitz, M., Hauser, A., Knez, D., Messner, R., Schiffmann, A., Lackner, F., Hofer, F. & Ernst, W. E., Sep 2018, p. 82.

Research output: Contribution to conferenceAbstractResearchpeer-review

To be or not to be alloyed: The unexpected behaviour of Ni-Au and Co-Au core-shell nanoparticles upon heating

Schnedlitz, M., Knez, D., Meyer, R., Lasserus, M. I., Messner, R., Schiffmann, A., Lackner, F., Hauser, A., Hofer, F. & Ernst, W. E., Sep 2018, 68th Annual Meeting of the Austrian Physical Society. Graz: Verlag der Technischen Universität Graz, p. 82

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Ultra-thin h-BN films employed as STEM substrates for nanoscale plasmon spectroscopy

Schiffmann, A., Knez, D., Lackner, F., Lasserus, M. I., Messner, R., Schnedlitz, M., Hofer, F. & Ernst, W. E., Aug 2018. 1 p.

Research output: Contribution to conferenceAbstractResearchpeer-review

2017

3D Imaging of Gap Plasmons in Vertically Coupled Nanoparticles by EELS Tomography

Haberfehlner, G., Schmidt, F., Schaffernak, G., Hörl, A., Trügler, A., Hohenau, A., Hofer, F., Krenn, J., Hohenester, U. & Kothleitner, G., 2017, In : Nano Letters. 2017, 17, p. 6773-6777

Research output: Contribution to journalArticleResearchpeer-review