Zobrazeno 1 - 10
of 941
pro vyhledávání: '"F. Janik"'
Publikováno v:
Materials, Vol 17, Iss 6, p 1232 (2024)
Thermogravimetry coupled with thermal analysis and quadrupole mass spectroscopy TGA/DTA-QMS were primarily used to assess the oxidation susceptibility of a pool of nanocrystalline powders of the semiconductor kesterite Cu2ZnSnS4 for prospective photo
Externí odkaz:
https://doaj.org/article/458f7a8913fd4b869085cfaf7c095066
Autor:
F. Janik
Publikováno v:
Geographica Helvetica, Vol 77, Pp 341-343 (2022)
Externí odkaz:
https://doaj.org/article/b3f38c0882da474986a0e72748cd5b0e
Publikováno v:
Journal of Materials Research and Technology, Vol 9, Iss 6, Pp 13320-13331 (2020)
Presented is a new mechanochemically assisted synthesis route to kesterite Cu2ZnSnS4 semiconductor for perspective photovoltaic applications. Initially, the combined copper Cu, zinc Zn, and tin Sn powders in atomic ratio 2:1:1 were subjected to high
Externí odkaz:
https://doaj.org/article/56f37f211b2440f3be6945d8a8f335a4
Publikováno v:
Materials, Vol 15, Iss 6, p 2200 (2022)
A study is presented on the synthesis of reaction-mixed nitride nanopowders in the reference system of aluminium nitride AlN, gallium nitride GaN, and titanium nitride TiN (Al:Ga:Ti = 1:1:1) followed by their high-pressure and high-temperature sinter
Externí odkaz:
https://doaj.org/article/6f53584ff4d142c68b3d8e763e04f0a9
Autor:
Mariusz Drygaś, Katarzyna Lejda, Jerzy F. Janik, Klaudia Łyszczarz, Stanisław Gierlotka, Svitlana Stelmakh, Bogdan Pałosz
Publikováno v:
Materials, Vol 14, Iss 14, p 3794 (2021)
Presented is a study on the preparation, via original precursor solution chemistry, of intimately mixed composite nanocrystalline powders in the system gallium nitride GaN–titanium nitride TiN, atomic ratio Ga/Ti = 1/1, which were subjected to high
Externí odkaz:
https://doaj.org/article/faf3ac87b6c0414b9cd79e61f5c8f7da
Publikováno v:
Materials, Vol 14, Iss 2, p 386 (2021)
Silicon oxynitrides (SiOxNy) have many advantageous properties for modern ceramic applications that justify a development of their new and efficient preparation methods. In the paper, we show the possibility of preparing amorphous SiOxNy-based materi
Externí odkaz:
https://doaj.org/article/5f76a47b82a64880aeef428ddffa07f1
Autor:
Mariusz Drygaś, Katarzyna Lejda, Jerzy F. Janik, Bogdan Musielak, Stanisław Gierlotka, Svitlana Stelmakh, Bogdan Pałosz
Publikováno v:
Materials, Vol 14, Iss 3, p 588 (2021)
Presented is a study on the original preparation of individual and in situ intimately mixed composite nanocrystalline powders in the titanium nitride-aluminum nitride system, Ti:Al = 1:1 (at.), which were used in high pressure (7.7 GPa) and high temp
Externí odkaz:
https://doaj.org/article/38349144820d43829a78c6bcdc322fa3
Publikováno v:
International Journal of Molecular Sciences
Volume 24
Issue 4
Pages: 3159
Volume 24
Issue 4
Pages: 3159
We explore the important aspects of adventitious oxygen presence in nanopowders, as well as in the high-pressure and high-temperature-sintered nanoceramics of semiconductor kesterite Cu2ZnSnS4. The initial nanopowders were prepared via the mechanoche
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6f5892f4f227da367a18e4b448263fb
Autor:
Katarzyna Lejda, Mariusz Drygaś, Jerzy F. Janik, Jacek Szczytko, Andrzej Twardowski, Zbigniew Olejniczak
Publikováno v:
Materials, Vol 13, Iss 16, p 3487 (2020)
High energy ball milling is used to make first the quaternary sulfide Cu2ZnSnS4 raw nanopowders from two different precursor systems. The mechanochemical reactions in this step afford cubic pre-kesterite with defunct semiconducting properties and sho
Externí odkaz:
https://doaj.org/article/7d62134531eb4ba5bd1ef4b3f36a430d
Autor:
Jerzy F. Janik, Zbigniew Olejniczak, Mariusz Drygas, S. Stelmakh, Bogdan F. Palosz, Mirosław M. Bućko, Katarzyna Kapusta, Stanislaw Gierlotka
Publikováno v:
Journal of the European Ceramic Society. 40:5339-5348
Presented are investigations of in situ preparation of composite nanopowders of AlN, GaN, and, optionally, solid solution Al0.5Ga0.5N, which were used in no-additive, high-pressure/high-temperature sintering. Two precursor synthesis pathways and two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4825b73566323cf53a7821b8e708555d
https://doi.org/10.1016/j.jeurceramsoc.2020.06.015
https://doi.org/10.1016/j.jeurceramsoc.2020.06.015