Zobrazeno 1 - 10
of 243
pro vyhledávání: '"Odireleng M. Ntwaeaborwa"'
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 60, Iss 3, Pp 147-162 (2021)
ZnAl2O4 doped with various concentration (x) of Fe3+ were prepared using the Pechini synthesis. In the first set of samples, Fe3+ substituted Al3+ to create a system of the form ZnAl(2−x)Fex3+O4 (x = 0–0.08). To study the effect of charge compens
Externí odkaz:
https://doaj.org/article/6f9a343155ce4157b86f75486774fef8
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 60, Iss 3, Pp 147-162 (2021)
ZnAl2O4 doped with various concentration (x) of Fe3+ were prepared using the Pechini synthesis. In the first set of samples, Fe3+ substituted Al3+ to create a system of the form ZnAl(2−x)Fex3+O4 (x = 0–0.08). To study the effect of charge compens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7f1bcb24315cb22218f5de91dd3d6f0
https://doi.org/10.1016/j.bsecv.2020.02.005
https://doi.org/10.1016/j.bsecv.2020.02.005
Publikováno v:
Ceramics International. 46:26425-26433
Praseodymium (Pr3+) and dysprosium (Dy3+) co-doped mixed lanthanum/yttrium oxyorthosilicates (La2-xYxSiO5, x = 0.5, 1 and 2) phosphors were synthesized using urea-assisted combustion method. The X-ray diffraction (XRD) patterns showed the pure monocl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9fa659a9f48f424d3f1b9e84603d313
https://doi.org/10.1016/j.ceramint.2020.03.058
https://doi.org/10.1016/j.ceramint.2020.03.058
Autor:
A. Balakrishna, Leelakrishna Reddy, H.C. Swart, Odireleng M. Ntwaeaborwa, T.J. Nkosi, P. L. Masiteng
Publikováno v:
Current Applied Physics. 20:696-702
Ca3(PO4)2:1mol%Ce3+/xGd3+ (where x = 0.5, 1.0, 3.0 and 5.0 mol%) phosphors were synthesized by the conventional combustion synthesis method. The X-ray diffraction patterns showed their rhombohedral structure with space group of R3c. The optical prope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2449ed6dcf46b516e4c3189fcde84c2a
https://doi.org/10.1016/j.cap.2020.02.017
https://doi.org/10.1016/j.cap.2020.02.017
Publikováno v:
Journal of Molecular Structure. 1192:105-114
Eu3+ doped ZnO thin films were successfully prepared using the spin coating technique. X-ray diffraction confirmed that the undoped films had high crystallinity and preferred orientation along the c-axis, although the crystallinity and the preferred
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::497c0930b64db0724dc79a31dfb0c9cb
https://doi.org/10.1016/j.molstruc.2019.04.128
https://doi.org/10.1016/j.molstruc.2019.04.128
Publikováno v:
Applied Surface Science. 484:105-111
Bright green luminescence at 500 nm was obtained from chemical bath deposited ZnO nanorods after annealing in a reducing atmosphere (H2/Ar) at 700 °C for 30 min. Auger electron spectroscopy (AES), X-ray photoelectron spectroscopy (XPS) and secondary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dd10897c91e0d097f595ee07d89ae84
https://doi.org/10.1016/j.apsusc.2019.04.113
https://doi.org/10.1016/j.apsusc.2019.04.113
Publikováno v:
Diamond and Related Materials. 96:11-19
The incorporation of shallow n-type dopants in diamond is one of the major challenges for its electronic applications. n-Type behaviour in diamond has been observed for substitutional phosphorus and nitrogen, with activation energies of approximately
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0790613564828fc18b9cd46a0bb141e7
https://doi.org/10.1016/j.diamond.2019.04.024
https://doi.org/10.1016/j.diamond.2019.04.024
Publikováno v:
Journal of Luminescence. 208:104-107
We report the influence of dopants on the thermoluminescence of Sr2MgSi2O7. Samples studied comprise undoped Sr2MgSi2O7 and doped versions, namely, Sr2MgSi2O7:Dy3+, Sr2MgSi2O7:Eu3+, Sr2MgSi2O7:Tb3+ and Sr2MgSi2O7:Tb3+,Eu3+ phosphors. All samples show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb1032a0f35cd6933e8bb0cd038b8a1a
https://doi.org/10.1016/j.jlumin.2018.12.035
https://doi.org/10.1016/j.jlumin.2018.12.035
Autor:
David O. Kumi, Cheolmin Park, Hong Hee Kim, So Hye Cho, Ki-Woong Kim, Odireleng M. Ntwaeaborwa, Yeonjin Yi, Won Kook Choi, Dong Hee Park
Publikováno v:
RSC Advances. 9:32066-32071
In our study, to optimize the electron–hole balance through controlling the electron transport layer (ETL) in the QD-LEDs, four materials (ZnO, ZnGaO, ZnMgO, and ZnGaMgO NPs) were synthesized and applied to the QD-LEDs as ETLs. By doping ZnO NPs wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5da81585eb4971e831aa136176db8458
https://doi.org/10.1039/c9ra06976c
https://doi.org/10.1039/c9ra06976c
Autor:
Tshwafo E. Motaung, Setumo Victor Motloung, Odireleng M. Ntwaeaborwa, Robin E. Kroon, L. T. Melato
Publikováno v:
Journal of Molecular Structure. 1176:217-225
Barium magnesium aluminate nanopowders doped with holmium (Ba0.5Mg0.5Al2O4:x% Ho3+) were successfully prepared by the sol-gel method. The Ho3+ concentration was varied up to 2 mol%. X-ray powder diffraction results showed that the Ba0.5Mg0.5Al2O4 nan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3da705f608b8f425ae56b591d36b6a9f
https://doi.org/10.1016/j.molstruc.2018.08.093
https://doi.org/10.1016/j.molstruc.2018.08.093