University of Twente
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prof.dr.ir. G. Koster (Gertjan)

Hoogleraar

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Nano Electronic Materials

Expertises

Engineering & Materials Science
# Epitaxial Growth
# Ferroelectric Materials
# Heterojunctions
# Nanosheets
# Oxides
# Pulsed Laser Deposition
# Substrates
# Thin Films

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Publicaties

Recent
Kante, M. V., Weber, M. L. , Ni, S., van den Bosch, I. C. G., van der Minne, E., Heymann, L., Falling, L. J., Gauquelin, N. , Tsvetanova, M. , Cunha, D. M. , Koster, G., Gunkel, F., Nemšák, S., Hahn, H., Velasco Estrada, L. , & Baeumer, C. (2023). A High-Entropy Oxide as High-Activity Electrocatalyst for Water Oxidation. ACS nano, 17(6), 5329-5339. https://doi.org/10.1021/acsnano.2c08096
Trstenjak, U., Daneu, N., Belhadi, J., Samardžija, Z., Matavž, A., Bobnar, V. , Koster, G., & Spreitzer, M. (2023). Non-stoichiometry and its implications for the properties of PMN-PT thin films. Journal of materials chemistry C, 11(3), 1144-1154. https://doi.org/10.1039/d2tc04070k
Jovanović, Z., Trstenjak, U., Ho, H. C., Butsyk, O. , Chen, B., Tchernychova, E., Borodavka, F. , Koster, G., Hlinka, J., & Spreitzer, M. (2023). Tiling the Silicon for Added Functionality: PLD Growth of Highly Crystalline STO and PZT on Graphene Oxide-Buffered Silicon Surface. ACS Applied Materials and Interfaces, 15(4), 6058-6068. https://doi.org/10.1021/acsami.2c17351
van de Putte, M. W. (2023). Vertically aligned nanocomposites as next-generation thermoelectric architectures. [PhD Thesis - Research UT, graduation UT, University of Twente]. University of Twente. https://doi.org/10.3990/1.9789036555432
Uemura, Y., Ismail, A. S. M., Park, S. H., Kwon, S., Kim, M., Elnaggar, H., Frati, F., Wadati, H., Hirata, Y., Zhang, Y., Yamagami, K., Yamamoto, S., Matsuda, I. , Halisdemir, U. , Koster, G., Milne, C., Ammann, M., Weckhuysen, B. M., & De Groot, F. M. F. (2022). Hole Dynamics in Photoexcited Hematite Studied with Femtosecond Oxygen K-edge X-ray Absorption Spectroscopy. Journal of physical chemistry letters, 13(19), 4207-4214. https://doi.org/10.1021/acs.jpclett.2c00295
Belhadi, J., Hanani, Z., Trstenjak, U., Shepelin, N. A., Bobnar, V. , Koster, G., Hlinka, J., Pergolesi, D., Lippert, T., El Marssi, M. , & Spreitzer, M. (2022). Large imprint in epitaxial 0.67Pb(Mg1/3Nb2/3)O3-0.33PbTiO3thin films for piezoelectric energy harvesting applications. Applied physics letters, 121(18), [182903]. https://doi.org/10.1063/5.0115777
Koster, G. , & Rijnders, A. J. H. M. (2022). Integration of thin film functional oxides on technical substrates. Poster session presented at MESA+ Meeting 2022, Enschede, Netherlands.
van den Bosch, I. C. G., Kiens, E. , Mul, G. , Koster, G. , Mei, B. T. , & Baeumer, C. (2022). Tuning the activity of multilayer oxygen evolution electrocatalysts. Poster session presented at NWO CHAINS 2022, Veldhoven, Netherlands.
van der Minne, E., van den Bosch, I. C. G. , Le, T. P. P., Kiens, E. , Ni, S., Heymann, L. , Koster, G. , & Baeumer, C. (2022). Electrochemical Thin Films and Interfaces. Poster session presented at MESA+ Meeting 2022, Enschede, Netherlands.
Ni, S., Kante, M. V. , M. Cunha, D., Weber, M. L., van den Bosch, I. C. G., Heymann, L., van der Minne, E., Falling, L. , Koster, G., Gunkel, F., Nemsak, S., Hahn, H., Velasco, M. , & Baeumer, C. (2022). High-activity electrocatalyst La(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3 for water oxidation. Poster session presented at NWO CHAINS 2022, Veldhoven, Netherlands.
Birkhölzer, Y. A. , Sotthewes, K., Gauquelin, N., Riekehr, L., Jannis, D., Van Der Minne, E., Bu, Y., Verbeeck, J. , Zandvliet, H. J. W. , Koster, G. , & Rijnders, G. (2022). High-Strain-Induced Local Modification of the Electronic Properties of VO2Thin Films. ACS Applied Electronic Materials, 4(12), 6020-6028. https://doi.org/10.1021/acsaelm.2c01176
Ni, S. (2022). Relaxor ferroelectric PMN-PT thin films for low hysteretic microelectronic devices. [PhD Thesis - Research UT, graduation UT, University of Twente]. University of Twente. https://doi.org/10.3990/1.9789036554640
Birkhölzer, Y. A. (2022). Nanoscale strain control of oxide thin films. [PhD Thesis - Research UT, graduation UT, University of Twente]. University of Twente. https://doi.org/10.3990/1.9789036553483
Chen, B., Gauquelin, N., Strkalj, N. , Huang, S. , Halisdemir, U. , Nguyen, M. D., Jannis, D., Sarott, M. F., Eltes, F., Abel, S., Spreitzer, M., Fiebig, M., Trassin, M., Fompeyrine, J., Verbeeck, J. , Huijben, M. , Rijnders, G. , & Koster, G. (2022). Signatures of enhanced out-of-plane polarization in asymmetric BaTiO3 superlattices integrated on silicon. Nature communications, 13(1), [265]. https://doi.org/10.1038/s41467-021-27898-x
Uemura, Y., Ismail, A. S. M., Park, S. H., Kwon, S., Kim, M., Niwa, Y., Wadati, H., Elnaggar, H., Frati, F., Haarman, T., Höppel, N., Huse, N., Hirata, Y., Zhang, Y., Yamagami, K., Yamamoto, S., Matsuda, I., Katayama, T., Togashi, T., ... De Groot, F. M. F. (2021). Femtosecond Charge Density Modulations in Photoexcited CuWO4. The Journal of physical chemistry part C, 125(13), 7329-7336. https://doi.org/10.1021/acs.jpcc.0c10525
Birkhölzer, Y. A. , Sotthewes, K. , Koster, G. , & Rijnders, A. J. H. M. (2021). Nanoscale Manipulation of VO2 thin films. Poster session presented at 27th International Workshop on Oxide Electronics, iWOE27, Genoa, Italy.
Geran Malek Kheyli, S. (2021). Investigation into mechanical fatigue of piezoelectric actuators. [EngD Thesis, University of Twente]. University of Twente.

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Naar mijn profiel

Onderwijs

Committees:

  • Onderwijskwaliteitcommissie Advanced Technology (2010-1012)
  • Examencommissie Advanced Technology (2012-2016)
  • Onderwijscommissie AT (2016-)

Verbonden aan Opleidingen

Bachelor

Master

Vakken Collegejaar  2022/2023

Vakken in het huidig collegejaar worden toegevoegd op het moment dat zij definitief zijn in het Osiris systeem. Daarom kan het zijn dat de lijst nog niet compleet is voor het gehele collegejaar.
 

Vakken Collegejaar  2021/2022

In de Pers

2016

2014

2013

2012

2011

2010

2009

2008

  •  Kunstkristalbouwer nummer drie by Henk Klomp, Technisch Weekblad no. 9 (in dutch); COMAT system

2007

  • Monitoring-and Possibly Improving-Superconducting Films by Hang Hogan, Spectroscopy Focus, September, pg 107; on APL 90 (2007) 261917
  • Watch out for the lack of oxygen by James N. Eckstein, Nature Materials (News and Views), 6 473; PRL 98 (2007) 196802
  • Evidence suggests that a ferromagnetic metal may lie at the interface between nonmagnetic insulatorsby B.G. Levi, Physics Today, June; PRL 98 (2007) 196802

Contactgegevens

+31534892860  (bij geen gehoor)
 
 

Bezoekadres

Universiteit Twente
Faculty of Science and Technology
Carré (gebouwnr. 15), kamer C3247
Hallenweg 23
7522NH  Enschede

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Postadres

Universiteit Twente
Faculty of Science and Technology
Carré  C3247
Postbus 217
7500 AE Enschede

Verbonden aan

Universiteit Twente Drienerlolaan 5
7522 NB Enschede
+31 (0)53 489 9111
info@utwente.nl
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