Výsledky vyhledávání - "Michal, Piasecki"

Akademický článek

Structural, elastic, electronic, optical and anisotropy properties of newly quaternary Tl2HgGeSe4 via DFPT predictions associated to XPES and RS experiments

Autor: Mohamed Salah Halati, Oleg Yu Khyzhun, Abderrazak Khireddine, Michal Piasecki, Ilona Radkowska, Khaled Hamdi Cherif, Zakia Lounis, Yves Caudano, Abdelhak Bedjaoui, Ahmad Alghamdi, Prabhu Paramasivam, Chander Prakash, Sherif S. M. Ghoneim

Publikováno v: Scientific Reports, Vol 14, Iss 1, Pp 1-23 (2024)

Abstract In the present work, we report on theoretical studies of thermodynamic properties, structural and dynamic stabilities, dependence of unit-cell parameters and elastic constants upon hydrostatic pressure, charge carrier effective masses, elect

Externí odkaz: https://doaj.org/article/704aa6a64e404e3682de502b234e64f3

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Akademický článek

Influence of co-doping of divalent ions on the photoluminescence intensity of Mn4+ doped CaAl12O19

Autor: Umar Zafari, Musashi Sagayama, Mekhrdod Subhoni, Alok M. Srivastava, William W. Beers, William E. Cohen, Chong-Geng Ma, Michal Piasecki, Mikhail G. Brik, Tomoyuki Yamamoto

Publikováno v: Optical Materials: X, Vol 16, Iss , Pp 100197- (2022)

Influence of co-dopings of divalent ions such as Mg2+, Zn2+, Cd2+ and Sr2+ ions in Mn4+-doped CaAl12O19 red phosphor on its photoluminescence characteristics has been investigated. Samples of Mn4+-doped CaAl12O19 and co-doped with Mg2+, Zn2+, Cd2+ an

Externí odkaz: https://doaj.org/article/2a2b687d86224f31834aaf0470030493

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Study on Local-Structure Symmetrization of K2XF6 Crystals Doped with Mn4+ Ions by First-Principles Calculations

Autor: Brik, Mega Novita, Sigit Ristanto, Ernawati Saptaningrum, Slamet Supriyadi, Dian Marlina, Ferdy Semuel Rondonuwu, Alok Singh Chauhan, Benjamin Walker, Kazuyoshi Ogasawara, Michal Piasecki, Mikhail G.

Publikováno v: Materials; Volume 16; Issue 11; Pages: 4046

The crystals of Mn4+-activated fluorides, such as those of the hexafluorometallate family, are widely known for their luminescence properties. The most commonly reported red phosphors are A2XF6: Mn4+ and BXF6: Mn4+ fluorides, where A represents alkal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=multidiscipl::02352c2889307240e616ec91b5bf8b13

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Entropy-Induced Multivalley Band Structures Improve Thermoelectric Performance in p-Cu7P(SxSe1–x)6 Argyrodites

Autor: Janusz Tobola, Igor Barchiy, A.I. Pogodin, Michal Piasecki, O.P. Kokhan, Oleksandr Cherniushok, Krzysztof T. Wojciechowski, Taras Parashchuk, Son D. N. Luu, Ihor Studenyak

Publikováno v: ACS Applied Materials & Interfaces. 13:39606-39620

Searching for novel low-cost and eco-friendly materials for energy conversion is a good way to provide widespread utilization of thermoelectric technologies. Herein, we report the thermal behavior, phase equilibria data, and thermoelectric properties

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5554b92694b4546fe0622b4060ce8c4
https://doi.org/10.1021/acsami.1c11193

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Electron, phonon and thermoelectric properties of Cu7PS6 crystal calculated at DFT level

Autor: Michal Piasecki, Ihor Studenyak, Bohdan Andriyevsky, I. E. Barchiy, A. I. Kashuba

Publikováno v: Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)

The promising class of the environment-friendly thermoelectrics is the copper-based argyrodite-type ion-conducting crystals exhibiting just extraordinary low thermal conductivity below the glass limit associated with the molten copper sublattice lead

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::321ed30aaa4d54363a23d24a73e79d96
https://doi.org/10.1038/s41598-021-98515-6

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