Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Oleksandr Selyshchev"'
Autor:
Muhammad Zubair Khan, Oleg E. Peil, Apoorva Sharma, Oleksandr Selyshchev, Sergio Valencia, Florian Kronast, Maik Zimmermann, Muhammad Awais Aslam, Johann G. Raith, Christian Teichert, Dietrich R. T. Zahn, Georgeta Salvan, Aleksandar Matković
Publikováno v:
Advanced Physics Research, Vol 2, Iss 12, Pp n/a-n/a (2023)
Abstract Magnetic monolayers show great promise for future applications in nanoelectronics, data storage, and sensing. The research in magnetic two‐dimensional (2D) materials focuses on synthetic iodides and tellurides, which suffer from a lack of
Externí odkaz:
https://doaj.org/article/d887b4fde707487996b31611d06c064c
Autor:
Volodymyr Dzhagan, Oleksandr Selyshchev, Serhiy Kondratenko, Nazar Mazur, Yevhenii Havryliuk, Oleksandra Raievska, Oleksandr Stroyuk, Dietrich R. T. Zahn
Publikováno v:
Electronic Materials, Vol 3, Iss 1, Pp 136-153 (2022)
Thin films of colloidal CZTS nanocrystals (NCs) synthesized using a “green” approach in water with a variation of the copper-to-tin ratio are investigated by Raman scattering, mid-infrared (molecular vibrations) and near-infrared (free carrier) a
Externí odkaz:
https://doaj.org/article/3e19a3b10a3d432884c14b0ccac0b47a
Autor:
Yevhenii Havryliuk, Volodymyr Dzhagan, Anatolii Karnaukhov, Oleksandr Selyshchev, Julia Hann, Dietrich R. T. Zahn
Publikováno v:
Nanomaterials, Vol 13, Iss 11, p 1775 (2023)
The problem with waste heat in solar panels has stimulated research on materials suitable for hybrid solar cells, which combine photovoltaic and thermoelectric properties. One such potential material is Cu2ZnSnS4 (CZTS). Here, we investigated thin fi
Externí odkaz:
https://doaj.org/article/a166f2f9d8aa4cc29441995cd0406c57
Publikováno v:
Nanomaterials, Vol 13, Iss 9, p 1455 (2023)
In this work, the deposition of β-Ga2O3 microstructures and thin films was performed with Ga(NO3)3 solutions by ultrasonic nebulization and spray coating as low-cost techniques. By changing the deposition parameters, the shape of β-Ga2O3 microstruc
Externí odkaz:
https://doaj.org/article/05f1103897204ffd8a66950652223a9e
Autor:
Volodymyr Dzhagan, Nazar Mazur, Olga Kapush, Oleksandr Selyshchev, Anatolii Karnaukhov, Oleg A. Yeshchenko, Mykola I. Danylenko, Volodymyr Yukhymchuk, Dietrich R. T. Zahn
Publikováno v:
Nanomaterials, Vol 13, Iss 5, p 921 (2023)
The parameters of the shell and interface in semiconductor core/shell nanocrystals (NCs) are determinant for their optical properties and charge transfer but are challenging to be studied. Raman spectroscopy was shown earlier to be a suitable informa
Externí odkaz:
https://doaj.org/article/37b587cdeb9c4240b0e352c54c88e52c
Autor:
Yevhenii Havryliuk, Volodymyr Dzhagan, Anatolii Karnaukhov, Oleksandr Selyshchev, Julia Hann, Dietrich R. T. Zahn
Publikováno v:
Nanomaterials, Vol 13, Iss 1, p 41 (2022)
Cu2ZnSnS4 (CZTS) is an intensively studied potential solar cell absorber and a promising thermoelectric (TE) material. In the form of colloidal nanocrystals (NCs), it is very convenient to form thin films on various substrates. Here, we investigate c
Externí odkaz:
https://doaj.org/article/2a212571c842403ba03cde3bc3e617e4
Autor:
Yevhenii Havryliuk, Oleksandr Selyshchev, Mykhailo Valakh, Alexandra Raevskaya, Oleksandr Stroyuk, Constance Schmidt, Volodymyr Dzhagan, Dietrich R. T. Zahn
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 10, Iss 1, Pp 222-227 (2019)
The effect of flash-lamp annealing (FLA) on the re-crystallization of thin films made of colloidal Cu2ZnSnS4 nanocrystals (NCs) is investigated by Raman spectroscopy. Unlike similar previous studies of NCs synthesized at high temperatures in organic
Externí odkaz:
https://doaj.org/article/eb1f2f812ad040e5af8322145eaf5a5e
Autor:
Annika Morgenstern, Rico Thomas, Apoorva Sharma, Marcus Weber, Oleksandr Selyshchev, Ilya Milekhin, Doreen Dentel, Sibylle Gemming, Christoph Tegenkamp, Dietrich R. T. Zahn, Michael Mehring, Georgeta Salvan
Publikováno v:
Nanomaterials, Vol 12, Iss 11, p 1815 (2022)
Bismuth compounds are of growing interest with regard to potential applications in catalysis, medicine, and electronics, for which their environmentally benign nature is one of the key factors. One thing that currently hampers the further development
Externí odkaz:
https://doaj.org/article/396ad9b4e0f448d5ba6b75ab886e1e72
Autor:
Oleksandr Stroyuk, Alexandra Raevskaya, Oleksandr Selyshchev, Volodymyr Dzhagan, Nikolai Gaponik, Dietrich R. T. Zahn, Alexander Eychmüller
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
Abstract Structure, composition, and optical properties of colloidal mercaptoacetate-stabilized Cu2ZnSnS4 (CZTS) nanocrystal inks produced by a “green” method directly in aqueous solutions were characterized. A size-selective precipitation proced
Externí odkaz:
https://doaj.org/article/fdb3ebb3b1de4792982248388b44d080
Autor:
Volodymyr Dzhagan, Oleksandr Stroyuk, Oleksandra Raievska, Oksana Isaieva, Olga Kapush, Oleksandr Selyshchev, Volodymyr Yukhymchuk, Mykhailo Valakh, Dietrich R. T. Zahn
Publikováno v:
Nanomaterials, Vol 10, Iss 12, p 2565 (2020)
The environment strongly affects both the fundamental physical properties of semiconductor nanocrystals (NCs) and their functionality. Embedding NCs in polymer matrices is an efficient way to create a desirable NC environment needed for tailoring the
Externí odkaz:
https://doaj.org/article/c62bbf3713b64fddab19648351691048