Počet záznamů: 1
Er implantation into various cuts of ZnO - experimental study and DFT modelling
- 1.0520885 - ÚJF 2021 RIV CH eng J - Článek v odborném periodiku
Nekvindová, P. - Cajzl, J. - Macková, Anna - Malinský, Petr - Oswald, Jiří - Bottger, R. - Yatskiv, Roman
Er implantation into various cuts of ZnO - experimental study and DFT modelling.
Journal of Alloys and Compounds. Roč. 816, č. 3 (2020), č. článku 152455. ISSN 0925-8388. E-ISSN 1873-4669
Grant CEP: GA ČR GA18-03346S; GA MŠMT EF16_013/0001812
Institucionální podpora: RVO:61389005 ; RVO:68378271 ; RVO:67985882
Klíčová slova: Erbium * ZnO * Ion implantation * Density functional theory modelling * Rutherford backscattering spectroscopy
Obor OECD: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; Inorganic and nuclear chemistry (FZU-D); Electrical and electronic engineering (URE-Y)
Impakt faktor: 5.316, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.jallcom.2019.152455
his paper presents a DFT study of the positions of erbium ions in the ZnO structure as well as experimental study of Er ion implantation into different crystallographic cuts of ZnO. The theoretical simulations have compared cohesive energies and defect-formation energies for different Er positions in the wurtzite ZnO structure. In the experimental part, single-crystal ZnO substrates were implanted with Er+ ions at an energy of 190 keV using fluences of 1 x 10(16) and 5 x 10(16) ion.cm(-2). The ion implantation was followed by the application of the thermal annealing in oxygen atmosphere at 1000 degrees C for 5 h. The RBS/channelling method with fine scans was used to study the positions of erbium ions and structure recovery during the annealing process. The Er-doped ZnO samples exhibited clear luminescence in the NIR spectral region at around 1.5 mu m. This work provides new results on the comparison of erbium ion implantation into different polar and non-polar crystallographic cuts of ZnO, resulting in different luminescence properties of the samples. Experimental and theoretical results are compared as well.
Trvalý link: http://hdl.handle.net/11104/0305552
Počet záznamů: 1