Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Çelik, Veysel"'
Theoretical investigation of the role of the organic cation in methylammonium lead iodide perovskite
Autor:
Çelik, Veysel
The hybrid halide perovskite CH$_3$NH$_3$PbI$_3$ is easy to manufacture and inexpensive. Despite these, its efficiency as a solar cell is comparable to today's efficient solar cells. For these reasons, it is attracting a lot of attention today. Howev
Externí odkaz:
http://arxiv.org/abs/2210.04467
Autor:
Çelik, Veysel
In this study, the structural, electronic and optical properties of Pb doped rutile SnO$_2$ were investigated using the range separated hybrid exchange-correlation functional method. In the calculations, LDA functional was used instead of PBE functio
Externí odkaz:
http://arxiv.org/abs/2010.15380
Autor:
Çelik, Veysel, Mete, Ersen
In this study, oxygen vacancies and adatoms have been considered on the surface of both hexagonal and triangular ZnO nanowires. Their effect on the electronic structure and optical spectra of the nanowires have been investigated using the exact excha
Externí odkaz:
http://arxiv.org/abs/1802.10334
Autor:
ÇELİK, Veysel1 vcelik@siirt.edu.tr
Publikováno v:
Sakarya University Journal of Science (SAUJS) / Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi. Dec2023, Vol. 27 Issue 6, p1276-1285. 10p.
Autor:
ÇELİK, Veysel1 vcelik@siirt.edu.tr
Publikováno v:
Sakarya University Journal of Science (SAUJS) / Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi. Dec2023, Vol. 27 Issue 6, p1276-1285. 10p.
Autor:
Çelik, Veysel1 (AUTHOR) vcelik@siirt.edu.tr
Publikováno v:
European Physical Journal B: Condensed Matter. Jul2023, Vol. 96 Issue 7, p1-9. 9p.
Autor:
ÇELİK, Veysel1 vcelik@siirt.edu.tr
Publikováno v:
Journal of the Institute of Science & Technology / Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi. haz2023, Vol. 13 Issue 2, p1005-1012. 8p.
Autor:
Celik, Veysel, Mete, Ersen
Publikováno v:
J. Phys.: Condens. Matter 25, 365502 (2013)
We studied the electronic and atomic structures of anatase TiO2 codoped with Cr and N using hybrid density functional theory calculations. Nonlocal screened Hartree-Fock exchange energy is partially mixed with traditional semilocal exchange part. Thi
Externí odkaz:
http://arxiv.org/abs/1303.4552
Autor:
Çelik, Veysel, Mete, Ersen
Publikováno v:
Phys. Rev. B 86, 205112 (2012)
Electronic properties and atomic structures of W, N, S, W/N, and W/S dopings of anatase TiO_2 have been systematically investigated using the density functional theory (DFT). The exchange and correlation effects have been treated with Heyd, Scuseria
Externí odkaz:
http://arxiv.org/abs/1203.6486