Alexandr Zamchiy

Description

Academic Profile

Alexandr received his Bachelor and Master degrees in Physics in 2010 and 2012, respectively, from Novosibirsk State University, Novosibirs Russia. He finished his PhD in 2015 for his work on the synthesis of silicon-containing structures by gas-jet electron beam plasma chemical vapor deposition method at Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia. As part of scientific internships supported by DAAD, Alexandr visited the Institute for Energy and Climate Research - Photovoltaics (IEK-5), Forschungszentrum Jülich GmbH, Germany, Silicon Heterojunction Materials and Solar Cells group (group leader - Dr. K. Ding) in 2015, 2017, and  n2019. As part of these internships he took part in the research on the development, implementation and optimization of transparent passivating contact (SiO2/nc-SiC:H(n)) for the front side of crystalline silicon solar cells. In 2021, Alexandr did an internship in the Laboratory of Physics of Interfaces and Thin Films, Ecole Polytechnique, France under the supervision of prof. Pere Roca i Cabarrocas. The work was focused on the impact of annealing on the properties of doped epitaxial silicon layers grown by PECVD at low temperatures.

Main scientific interests

Silicon-containing low-dimensional structures (thin films, nanowires), crystallization processes (SPC, MIC) of amorphous semiconductors thin films, passivating contacts for c-Si solar cells

Main publications

A. A.O. Zamchiy, Y.V. Vorobyov, N.A. Lunev, V.O. Konstantinov, S.Z. Sakhapov, E.A. Maximovskiy, E.A. Baranov, Kinetics of gold-induced layer exchange crystallization of amorphous silicon suboxide films: Experimental and theoretical study, Journal of Alloys and Compounds, 939 (2023) 168818, https://doi.org/10.1016/j.jallcom.2023.168818.

B. A.O. Zamchiy, E.A. Baranov, Polycrystalline Silicon Thin Films for Solar Cells via Metal-Induced Layer Exchange Crystallization, Coatings, 12(12) (2022) 1926, https://doi.org/10.3390/coatings12121926.

C. Eberst, A. Zamchiy, K. Qiu, P. Winkel, H.T. Gebrewold, A. Lambertz, W. Duan, S. Li, K. Bittkau, T. Kirchartz, U. Rau, & K. Ding, Optical Optimization Potential of Transparent-Passivated Contacts in Silicon Solar Cells, Solar RRL 6(6) (2022) 2101050, https://doi.org/10.1002/solr.202101050.

D. Malte Köhler, Manuel Pomaska, Paul Procel, Rudi Santbergen, Alexandr Zamchiy, Bart Macco, Andreas Lambertz, Weiyuan Duan, Pengfei Cao, Benjamin Klingebiel, Shenghao Li, Alexander Eberst, Martina Luysberg, Kaifu Qiu, Olindo Isabella, Friedhelm Finger, Thomas Kirchartz, Uwe Rau, Kaining Ding, A silicon carbide-based highly transparent passivating contact for crystalline silicon solar cells approaching efficiencies of 24%, Nature Energy 6(5) (2021) 529–537, https://doi.org/10.1038/s41560-021-00806-9.

E. A.O. Zamchiy, E.A. Baranov, S.V. Starinskiy, N.A. Lunev, I.E. Merkulova, Fabrication of polycrystalline silicon thin films by gold-induced crystallization of amorphous silicon suboxide, Vacuum 192 (2021), 110462, https://doi.org/10.1016/j.vacuum.2021.110462.

F. A.O. Zamchiy, E.A. Baranov, I.E. Merkulova, I.V. Korolkov, V.I. Vdovin, A.K. Gutakovskii, V.A. Volodin, Layer exchange during aluminum-induced crystallization of silicon suboxide thin films, Materials Letters 293 (2021) 129723, https://doi.org/10.1016/j.matlet.2021.129723.

G. M. Pomaska, M. Köhler, P. Procel Moya, A. Zamchiy, A. Singh, D.Y. Kim, O. Isabella, M. Zeman, S. Li, K. Qiu, A. Eberst, V. Smirnov, F. Finger, U. Rau, K. Ding, Transparent silicon carbide/tunnel SiO2 passivation for c-Si solar cell front side: Enabling Jsc > 42 mA/cm2 and iVoc of 742 mV, Progress in Photovoltaics: Research and Applications, 28 (2020) 321–327, https://doi.org/10.1002/pip.3244.

H. A.O. Zamchiy, E.A. Baranov, E.A. Maximovskiy, V.A. Volodin, V.I. Vdovin, A.K. Gutakovskii, I.V. Korolkov, Fabrication of polycrystalline silicon thin films from a-SiOx via the inverted aluminum-induced layer exchange process, Materials Letters, 261 (2020) 127086, https://doi.org/10.1016/j.matlet.2019.127086.

I. M. Kohler, M. Pomaska, A. Zamchiy, A. Lambertz, W. Duan, F. Lentz, S. Li, V. Smirnov, F. Finger, T. Kirchartz, U. Rau, K. Ding, Optimization of Transparent Passivating Contact for Crystalline Silicon Solar Cells, IEEE Journal of Photovoltaics, 10(1) (2020) 46-53, https://doi.org/10.1109/JPHOTOV.2019.2947131.

J. A.O. Zamchiy, E.A. Baranov, I.E. Merkulova, S.Ya. Khmel, E.A. Maximovskiy, Determination of the oxygen content in amorphous SiOx thin films, Journal of Non-Crystalline Solids, 518 (2019) 43-50. https://doi.org/10.1016/j.jnoncrysol.2019.05.015.

K. A.O. Zamchiy, Е.А. Baranov, S.Ya. Khmel, E.A. Maximovskiy, D.V. Gulyaev, K.S. Zhuravlev, Deposition time dependence of the morphology and properties of tin-catalyzed silicon oxide nanowires synthesized by the gas-jet electron beam plasma chemical vapor deposition method, Thin Solid Films, 654 (2018) 61–68, https://doi.org/10.1016/j.tsf.2018.03.092.

L. A.O. Zamchiy, E.A. Baranov, I.E. Merkulova, V.A. Volodin, M.R. Sharafutdinov, S. Ya Khmel, Effect of annealing in oxidizing atmosphere on optical and structural properties of silicon suboxide thin films obtained by gas-jet electron beam plasma chemical vapor deposition method, Vacuum, 152 (2018) 319- 326, https://doi.org/10.1016/j.vacuum.2018.03.055.

Websites

• ResearchGate