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Structural and spectroscopic study of Ho3+ -doped nanotitania host prepared using a sol-gel technique.
Luminescence. 2020 Jun 16 [Online ahead of print]L

Abstract

Holmium (Ho3+)-doped TiO2 solid laser active materials with different concentrations (1, 3, 5, and 7 wt%) of Ho3+ ions were prepared using a sol-gel method. A structural study of the samples using X-ray diffraction (XRD) revealed the anatase phase of pure and doped TiO2 calcined at 500°C, which is confirmed by (101), (004), (200), (105), (211), (204), (116), (220) and (215) diffraction peaks. XRD analysis showen a deformation along the c-axis of the anatase lattice constant with doping, and a random change in the grain size of the doped titania with respect to pure samples. The presence of the titania bonds (Ti-O-Ti) and (Ti-O) of pure and Ho3+ -doped samples were confirmed from the FTIR spectroscopy study of the samples. In addition, it was noted that bands around 1338, and 1339 cm-1 belonging to 3, 5, and 7 wt% dopant concentrations, while no band for 1 wt% was observed. UV-Vis spectrophotometer and spectrofluorophotometer techniques were used to study the optical and spectroscopic characterizations of these samples. It was found that various fluorescence peaks for Ho3+ ions were observed in the UV-vis region under different pump wavelengths. This is a good indication of suitability of the material to be employed as a laser active medium.

Authors+Show Affiliations

Department of Physics, College of Education, University of Sulaimani, Kurdistan Region, Iraq.Department of Physics, College of Education, University of Sulaimani, Kurdistan Region, Iraq.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32542837

Citation

Ameen, Majida A., and Gashaw K. Arif. "Structural and Spectroscopic Study of Ho3+ -doped Nanotitania Host Prepared Using a Sol-gel Technique." Luminescence : the Journal of Biological and Chemical Luminescence, 2020.
Ameen MA, Arif GK. Structural and spectroscopic study of Ho3+ -doped nanotitania host prepared using a sol-gel technique. Luminescence. 2020.
Ameen, M. A., & Arif, G. K. (2020). Structural and spectroscopic study of Ho3+ -doped nanotitania host prepared using a sol-gel technique. Luminescence : the Journal of Biological and Chemical Luminescence. https://doi.org/10.1002/bio.3823
Ameen MA, Arif GK. Structural and Spectroscopic Study of Ho3+ -doped Nanotitania Host Prepared Using a Sol-gel Technique. Luminescence. 2020 Jun 16; PubMed PMID: 32542837.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Structural and spectroscopic study of Ho3+ -doped nanotitania host prepared using a sol-gel technique. AU - Ameen,Majida A, AU - Arif,Gashaw K, Y1 - 2020/06/16/ PY - 2019/10/01/received PY - 2020/04/15/revised PY - 2020/04/23/accepted PY - 2020/6/17/entrez KW - Ho3+ ions KW - Nanotitania TiO2 host KW - XRD pattern KW - fluorescence emission spectrum KW - sol-gel JF - Luminescence : the journal of biological and chemical luminescence JO - Luminescence N2 - Holmium (Ho3+)-doped TiO2 solid laser active materials with different concentrations (1, 3, 5, and 7 wt%) of Ho3+ ions were prepared using a sol-gel method. A structural study of the samples using X-ray diffraction (XRD) revealed the anatase phase of pure and doped TiO2 calcined at 500°C, which is confirmed by (101), (004), (200), (105), (211), (204), (116), (220) and (215) diffraction peaks. XRD analysis showen a deformation along the c-axis of the anatase lattice constant with doping, and a random change in the grain size of the doped titania with respect to pure samples. The presence of the titania bonds (Ti-O-Ti) and (Ti-O) of pure and Ho3+ -doped samples were confirmed from the FTIR spectroscopy study of the samples. In addition, it was noted that bands around 1338, and 1339 cm-1 belonging to 3, 5, and 7 wt% dopant concentrations, while no band for 1 wt% was observed. UV-Vis spectrophotometer and spectrofluorophotometer techniques were used to study the optical and spectroscopic characterizations of these samples. It was found that various fluorescence peaks for Ho3+ ions were observed in the UV-vis region under different pump wavelengths. This is a good indication of suitability of the material to be employed as a laser active medium. SN - 1522-7243 UR - https://www.unboundmedicine.com/medline/citation/32542837/Structural_and_spectroscopic_study_of_Ho3+_-doped_nanotitania_host_prepared_using_a_sol-gel_technique L2 - https://doi.org/10.1002/bio.3823 DB - PRIME DP - Unbound Medicine ER -
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