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Mgr. Jakub Holovský, Ph.D.

Present position
Assistant professor at Czech Technical University in Prague, Faculty of Electroengineering, teaching, supervising students, developing advanced characterization concepts for photovoltaic devices
Researcher at Institute of Physics of the ASCR v.v.i. Prague, Department of Optical Materials – Fourier transform optoelectronical and optical (infrared) spectroscopy of novel materials (for photovoltaics), study of interfaces, electrical and optical characterization of finished devices, optical simulations, investigator of Czech and EU projects mainly in the field of thin films


Education

2012-2013 PhD scholarship at École Polytechnique Fédérale de Lausanne, Neuchâtel, Switzerland, developing a new method for I-V characterization of tandem devices
2012 Ph.D. - Charles University in Prague, Faculty of Mathematics and Physics – Quantum Optics and Optoelectronics doctoral thesis: “Silicon solar cells: methods for experimental study and evaluation of material parameters in advanced structures”
2010-2011 Post-doc fellowship at École Polytechnique Fédérale de Lausanne, Neuchâtel, Switzerland, study of atomic structure of crystalline silicon surfaces by Attenuated Total Reflectance - FTIR spectroscopy
2006 Mgr. - Charles University in Prague, Faculty of Mathematics and Physics – Physics of Condensed and Macromolecular Matter, diploma thesis: “Photovoltaic silicon solar cells: study of materials and solar structures by Fourier photocurrent spectroscopy”

Main Research Areas
Advanced methods of photovoltaic cells diagnostics.


Publication Activities

>20 original peer reviewed international scientific papers, 1 book chapter, >20 conference proceedings, etc.), 1 patent, active contribution (oral or poster presentations) on >10 international conferences. Citation index: >200 citations (according to WoS, October 2015). Patent (co-author)
M. Vaněček, A. Poruba, Z. Remeš, J. Holovský, A. Purkrt, O. Babchenko, K. Hruška, N. Neykova, U. Kroll, J. Meier. Photovoltaic cell and method for producing a photovoltaic cell, International patent PCT, publ. no. WO/2011/033464, publ. date 24.3.2011, applicants: Oerlikon Solar a FZÚ AV ČR

Selected Publications: H Index 8 (Web of Science)

1. J. Holovský, et al. Photocurrent Spectroscopy of Perovskite Layers and Solar Cells: A Sensitive Probe of Material Degradation J. Phys. Chem. Lett. 8 (2017) 838-843. doi:10.1021/acs.jpclett.6b02854
2. S. Morawiec, J. Holovský, M. J. Mendes, M. Müller, et al., Experimental quantification of useful and parasitic absorption of light in plasmon-enhanced thin silicon films for solar cells application Sci. Rep. 6 (2016) 22481(1) - 22481(10). doi:10.1038/srep22481
3. J. Holovský, et al., Effect of the thin-film limit on the measurable optical properties of graphene, Sci. Rep. 5 (2015) 15684 (1) - 15684 (6). doi: 10.1038/srep15684
4. J. Holovský, S. De Wolf, P. Jiříček, Ch. Ballif Attenuated total reflectance Fourier-transform infrared spectroscopic investigation of silicon heterojunction solar cells. Rev. Sci. Instrum. 86 (2015) 073108-1 - 073108-6.
5. D. Y. Kim, E. Guijt, F. T. Si, R. Santbergen, J. Holovský, O. Isabella, R. van Swaaij, M. Zeman Fabrication of double- and triple-junction solar cells with hydrogenated amorphous silicon oxide (a-SiOx:H) top cell Sol. Energ. Mat. Sol. C. 141 (2015) 148 - 153.
6. M. Ledinský, P. Löper, B. Niesen, J. Holovský, S.-J. Moon, J. Yum, S. De Wolf, A. Fejfar, C. Ballif Raman Spectroscopy of Organic–Inorganic Halide Perovskites J. Phys. Chem. Lett. 6 (2015) 401 - 406.
7. P. A. Losio, O. Caglar, J. S. Cashmore, J. E. Hötzel, S. Ristau, J. Holovsky, Z. Remeš, I. Sinicco,Light management in large area thin-film silicon solar modules, Sol. Energ. Mat. Sol. C. 143 (2015) 375 - 385.
8. M. Morales-Masis, M. S. De Nicolas, J. Holovsky, S. De Wolf, C. Ballif, Low-Temperature High-Mobility Amorphous IZO for Silicon Heterojunction Solar Cells IEEE J. Photovoltaics (2015) in print
9. P. Loper; B. Niesen, Soo-Jin Moon, S. Martin de Nicolas, J. Holovský, Z. Remeš, M. Ledinský, F.-J. Haug, Jun-Ho Yum, S. De Wolf, C. Ballif, Organic–Inorganic Halide Perovskites: Perspectives for Silicon-Based Tandem Solar Cells, IEEE J. Photovoltaics 4 (2014) 1545 - 1551 .
10. S. N. Abolmasov, H. Woo, R. Planques,J. Holovský, E. V. Johnson, A. Purkrt, P. Roca i Cabarrocas Substrate and p-layer effects on polymorphous silicon solar cells EPJ Photovoltaics 5 (2014) 55206-p1 - 55206-p6.
11. S. De Wolf, J. Holovsky, S.-J. Moon, P. Löper, B. Niesen, M. Ledinsky, F.-J. Haug, J.-H. Yum, C. Ballif, Organometallic Halide Perovskites: Sharp Optical Absorption Edge and Its Relation to Photovoltaic Performance Journal of Physical Chemistry Letters 5 (2014) 1035-1039.
12. N. Neykova, K. Hruška, J. Holovský, Z. Remeš, M. Vaněček Arrays of ZnO nanocolumns for 3-dimensional very thin amorphous and microcrystalline silicon solar cells Thin Solid Films, 543 (2013) 110-113
13. G. Bugnon, G. Parascandolo, T. Söderström, P. Cuony, M. Despeisse, S. Hänni, J. Holovský, F. Meillaud, C. Ballif A New View of Microcrystalline Silicon: The Role of Plasma Processing in Achieving a Dense and Stable Absorber Material for Photovoltaic Applications Adv. Funct. Mater. 22 (2012) 3665 - 3671.
14. J. Holovský, M. Bonnet-Eymard, M. Boccard, M. Despeisse, C. Ballif1 Variable light biasing method to measure component I-V characteristics of multi-junction solar cells , Solar Energy Materials and. Solar Cells 103 (2012) 128 - 133.
15. J. Holovský, M. Bonnet-Eymard, G. Bugnon, P. Cuony, M. Despeisse, C. Ballif Measurement of the open circuit voltage of individual sub-cells in a dual-junction solar cell IEEE J. Photovoltaics 2 (2012) 164 - 168.
16. A. Descoeudres, L. Barraud, S. De Wolf, B. Strahm, D. Lachenal, C. Guérin, Z. C. Holman, F. Zicarelli, B. Demaurex, J. Seif, J. Holovský, C. Ballif, Improved amorphous/crystalline silicon interface passivation by hydrogen plasma treatment Appl. Phys. Lett. 99 (2011) 123605(1) - 123506(3).
17. M. Vaněček, O. Babchenko, A. Purkrt, J. Holovsky, N. Neykova, A. Poruba,Z. Remeš, J. Meier, U. Kroll , Nanostructured three-dimensional thin film silicon solar cells with very high efficiency potential, Appl. Phys. Lett. 98 (2011) 163503-1 - 163503-3.