Zobrazeno 1 - 10
of 223
pro vyhledávání: '"Leszczynski"'
Autor:
Turchi, Patrice E. A., Ivashchenko, Volodymyr I., Shevchenko, V. I., Gorb, Leonid, Leszczynski, Jerzy, Perron, Aurélien
Publikováno v:
Applied Sciences (2076-3417); Dec2023, Vol. 13 Issue 23, p12669, 24p
Autor:
Ewa Grzanka, Artur Lachowski, Tobias Schulz, Robert Czernecki, Sławomir Kret, Lucja Marona, Julita Smalc-Koziorowska, Szymon Grzanka, Roman Hrytsak, Martin Albrecht, M. Grabowski, Henryk Turski, Toni Markurt, Mike Leszczynski
Publikováno v:
ACS Applied Materials & Interfaces. 13:7476-7484
In this work, we study the thermal degradation of In-rich InxGa1–xN quantum wells (QWs) and propose explanation of its origin based on the diffusion of metal vacancies. The structural transformatio...
Autor:
Artur Lachowski, Andrzej Turos, Mike Leszczynski, Julita Smalc-Koziorowska, Ewa Grzanka, Szymon Grzanka, M. Grabowski, Grzegorz Gawlik, Robert Czernecki, Roman Hrytsak, Joanna Moneta
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Scientific Reports
Scientific Reports
The aim of this paper is to give an experimental evidence that point defects (most probably gallium vacancies) induce decomposition of InGaN quantum wells (QWs) at high temperatures. In the experiment performed, we implanted GaN:Si/sapphire substrate
Publikováno v:
Physical Chemistry Chemical Physics. 23:7164-7177
Examination of the stable (110) surface of γ-alumina reveals that there are three different types of sites available to host a single Fe atom. With the carefully calibrated density functional approach (M12-L/SV), three types of Fe single sites on th
Publikováno v:
The Journal of Physical Chemistry C. 124:20931-20941
Tri-coordinated Fe single sites on the (111)n surface of γ-alumina have been investigated by the carefully calibrated density functional methods (M12-L/SV) using periodic boundary conditions. For a...
Autor:
Mike Leszczynski, Fabrizio Roccaforte
Publikováno v:
Nitride Semiconductor Technology
Publikováno v:
The Journal of Physical Chemistry C. 124:2817-2836
The adequacy of the inclusion of spacer units in the metal-free D−π–A organic dyes concerning the augmentation of dye-sensitized solar cell (DSSC) efficiency has been examined through the excited-s...
Autor:
Majumdar Devashis, Yusong Wang, Dayu Wu, Ting Wu, Shenlong Jiang, Xiaoling Wang, Pabitra Narayan Samanta, Wei Huang, Jerzy Leszczynski, Xiangwei Gu, Qun Zhang, Jipeng Li, Yangbin Xie
Publikováno v:
Chemical Communications. 56:12057-12060
Negative thermal quenching (NTQ), an abnormal phenomenon that the intensity of photoluminescence (PL) increases with increasing temperature, has essentially been restricted to either bulk semiconductors or very low temperatures. Here, we report a del
Publikováno v:
The Journal of Physical Chemistry C. 123:26397-26405
The electronic structure of a natural pyrite sample from Navajun, Spain was studied using both core-level x-ray and valence band ultraviolet photoelectron spectroscopies (XPS and UPS, respectively)...
Autor:
Przemyslaw Niedzielski, Ewa Grzanka, Mike Leszczynski, Jerzy Plesiewicz, Robert Czernecki, Zbigniew Lisik, Ewa Raj
Publikováno v:
Electronics
Volume 10
Issue 12
Electronics, Vol 10, Iss 1503, p 1503 (2021)
Volume 10
Issue 12
Electronics, Vol 10, Iss 1503, p 1503 (2021)
The present paper focuses on the high-pressure metal-organic vapor phase epitaxy (MOVPE) upside-down vertical reactor (where the inlet of cold gases is below a hot susceptor). This study aims to investigate thermo-kinetic phenomena taking place durin