Welcome...

prof.dr.ir. G. Koster (Gertjan)

Full Professor

About Me

Expertise

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

Research

Publications

Recent
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/10.3990/1.9789036555425
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. Journal of physical chemistry 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.
Antoja-Lleonart, J., Ocelík, V., Zhou, S. , de Hond, K. , Koster, G. , Rijnders, G., & Noheda, B. (2021). Growth and crystallization of sio2/geo2 thin films on si(100) substrates. Nanomaterials, 11(7), [1654]. https://doi.org/10.3390/nano11071654
Green, R. J., Zabolotnyy, V., Zwiebler, M. , Liao, Z., Macke, S., Sutarto, R., He, F. , Huijben, M. , Rijnders, G. , Koster, G., Geck, J., Hinkov, V., & Sawatzky, G. A. (2021). Intrinsic versus extrinsic orbital and electronic reconstructions at complex oxide interfaces. Physical Review Materials , 5(6), [065004]. https://doi.org/10.1103/PhysRevMaterials.5.065004
Bouwmeester, R. L. (2021). Oxide materials as building blocks for artificial topological insulators. [PhD Thesis - Research UT, graduation UT, University of Twente]. University of Twente. https://doi.org/10.3990/1.9789036552134
Spreitzer, M., Klement, D., Parkelj Potocnik, T., Trstenjak, U., Jovanovic, Z. , Nguyen, M. D. , Yuan, H. , ten Elshof, J. E. , Houwman, E. , Koster, G. , Rijnders, G., Fompeyrine, J., Kornblum, L., Fenning, D. P., Liang, Y., Tong, W. Y., & Ghosez, P. (2021). Epitaxial ferroelectric oxides on silicon with perspectives for future device applications. APL materials, 9(4), [040701]. https://doi.org/10.1063/5.0039161
Belhadi, J. , Gabor, U., Uršič, H., Daneu, N., Kim, J., Tian, Z. , Koster, G., Martin, L. W., & Spreitzer, M. (2021). Growth mode and strain effect on relaxor ferroelectric domains in epitaxial 0.67Pb(Mg1/3Nb2/3)O3-0.33PbTiO3/SrRuO3 heterostructures. RSC advances, 11(3), 1222-1232. https://doi.org/10.1039/d0ra10107a
Other Contributions

 

UT Research Information System

Google Scholar Link

Education

Committees:

  • Educational Quality Committee Advanced Technology (2010-1012)
  • Exam Board Advanced Technology (2012-2016)
  • Educational committee AT (2016-)

Affiliated Study Programmes

Bachelor

Master

Courses Academic Year  2022/2023

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.
 

Courses Academic Year  2021/2022

In the press

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

Contact Details

Visiting Address

University of Twente
Faculty of Science and Technology
Carré (building no. 15), room C3247
Hallenweg 23
7522NH  Enschede
The Netherlands

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Mailing Address

University of Twente
Faculty of Science and Technology
Carré  C3247
P.O. Box 217
7500 AE Enschede
The Netherlands

Additional Contact Information