Effects of Si4+/Al3+ molar concentration ratio on the self-reduction process of Yb3+ to Yb2+ ions and optical properties of Bin+/Ybm+, Bin+/Er3+ and Bin+/Er3+/Ybm+ (n, m = 3, 2) co-doped magnesium aluminum silicate glass
In this paper, we investigate and report the effects of Si4+/Al3+ (SiO2/Al2O3) molar concentration ratio on the self-reduction process of Yb3+ to Yb2+ ions and upconversion (UC)-, visible (VIS)- emission spectra, direct optical bandgaps (DOB), indirect optical bandgaps (IOB) of Bin+/Ybm+, Er3+/Bin+,...
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Optical Materials
2024
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oai:scholar.dlu.edu.vn:123456789-35372024-08-09T13:04:59Z Effects of Si4+/Al3+ molar concentration ratio on the self-reduction process of Yb3+ to Yb2+ ions and optical properties of Bin+/Ybm+, Bin+/Er3+ and Bin+/Er3+/Ybm+ (n, m = 3, 2) co-doped magnesium aluminum silicate glass Nguyễn, Đình Trung Effects of Si4+/Al3+ co-doped magnesium aluminum silicate In this paper, we investigate and report the effects of Si4+/Al3+ (SiO2/Al2O3) molar concentration ratio on the self-reduction process of Yb3+ to Yb2+ ions and upconversion (UC)-, visible (VIS)- emission spectra, direct optical bandgaps (DOB), indirect optical bandgaps (IOB) of Bin+/Ybm+, Er3+/Bin+, and Er3+/Bin+/Ybm+ (n, m = 3, 2) co doped SiO2–Al2O3–MgO–TiO2 (SAMT) magnesium aluminum silicate glasses. The valence states of the bismuth (Bi), and Ytterbium (Yb) elements in the raw materials mixture existing in the SAMT glass were determined using X-ray photoelectron spectroscopy (XPS) spectra analysis. With the increase of Al3+ molar concentration from 16 mol. % up to 20, 24, 28 and 32 mol. % corresponding to the Si4+/Al3+ (SiO2/Al2O3) molar concentration ratio of 3.4, 2.5, 1.9, 1.5, and 1.2, the self-reduction process of Yb3+ to Yb2+ ions was enhanced and thus significantly affected the DOB, IOB, the intensities of UC-, VIS- emission spectra of Bin+/Ybm+, Bin+/Er3+, and Bin+/Er3+/ Ybm+ (n = 2, 3) co-doped SAMT glasses under excitation of 473 nm, 808 laser diode (LD) and 980 nm LD. In addition, the CIE 1931(x, y) color coordinates for VIS- and UC- emissions spectra of Bin+/Ybm+, Bin+/Er3+ (n = 2, 3) co-doped SAMT under excitation of 473 nm and 808 nm LD are also calculated and determined in the CIE 1931(x, y) chromaticity diagram 2024-08-01T01:22:19Z 2024-08-01T01:22:19Z 2024-07-22 2024-05-23 Journal article Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter Khoa học kỹ thuật và công nghệ https://scholar.dlu.edu.vn/handle/123456789/3537 10.1016/j.optmat.2024.115876 en Optical Materials ELSEVIER |
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Thư viện Trường Đại học Đà Lạt |
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Thư viện số |
| language |
English |
| topic |
Effects of Si4+/Al3+ co-doped magnesium aluminum silicate |
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Effects of Si4+/Al3+ co-doped magnesium aluminum silicate Nguyễn, Đình Trung Effects of Si4+/Al3+ molar concentration ratio on the self-reduction process of Yb3+ to Yb2+ ions and optical properties of Bin+/Ybm+, Bin+/Er3+ and Bin+/Er3+/Ybm+ (n, m = 3, 2) co-doped magnesium aluminum silicate glass |
| description |
In this paper, we investigate and report the effects of Si4+/Al3+ (SiO2/Al2O3) molar concentration ratio on the self-reduction process of Yb3+ to Yb2+ ions and upconversion (UC)-, visible (VIS)- emission spectra, direct optical bandgaps (DOB), indirect optical bandgaps (IOB) of Bin+/Ybm+, Er3+/Bin+, and Er3+/Bin+/Ybm+ (n, m = 3, 2) co doped SiO2–Al2O3–MgO–TiO2 (SAMT) magnesium aluminum silicate glasses. The valence states of the bismuth (Bi), and Ytterbium (Yb) elements in the raw materials mixture existing in the SAMT glass were determined using X-ray photoelectron spectroscopy (XPS) spectra analysis. With the increase of Al3+ molar concentration from 16 mol. % up to 20, 24, 28 and 32 mol. % corresponding to the Si4+/Al3+ (SiO2/Al2O3) molar concentration ratio of 3.4, 2.5, 1.9, 1.5, and 1.2, the self-reduction process of Yb3+ to Yb2+ ions was enhanced and thus significantly affected the DOB, IOB, the intensities of UC-, VIS- emission spectra of Bin+/Ybm+, Bin+/Er3+, and Bin+/Er3+/ Ybm+ (n = 2, 3) co-doped SAMT glasses under excitation of 473 nm, 808 laser diode (LD) and 980 nm LD. In addition, the CIE 1931(x, y) color coordinates for VIS- and UC- emissions spectra of Bin+/Ybm+, Bin+/Er3+ (n = 2, 3) co-doped SAMT under excitation of 473 nm and 808 nm LD are also calculated and determined in the CIE 1931(x, y) chromaticity diagram |
| format |
Journal article |
| author |
Nguyễn, Đình Trung |
| author_facet |
Nguyễn, Đình Trung |
| author_sort |
Nguyễn, Đình Trung |
| title |
Effects of Si4+/Al3+ molar concentration ratio on the self-reduction process of Yb3+ to Yb2+ ions and optical properties of Bin+/Ybm+, Bin+/Er3+ and Bin+/Er3+/Ybm+ (n, m = 3, 2) co-doped magnesium aluminum silicate glass |
| title_short |
Effects of Si4+/Al3+ molar concentration ratio on the self-reduction process of Yb3+ to Yb2+ ions and optical properties of Bin+/Ybm+, Bin+/Er3+ and Bin+/Er3+/Ybm+ (n, m = 3, 2) co-doped magnesium aluminum silicate glass |
| title_full |
Effects of Si4+/Al3+ molar concentration ratio on the self-reduction process of Yb3+ to Yb2+ ions and optical properties of Bin+/Ybm+, Bin+/Er3+ and Bin+/Er3+/Ybm+ (n, m = 3, 2) co-doped magnesium aluminum silicate glass |
| title_fullStr |
Effects of Si4+/Al3+ molar concentration ratio on the self-reduction process of Yb3+ to Yb2+ ions and optical properties of Bin+/Ybm+, Bin+/Er3+ and Bin+/Er3+/Ybm+ (n, m = 3, 2) co-doped magnesium aluminum silicate glass |
| title_full_unstemmed |
Effects of Si4+/Al3+ molar concentration ratio on the self-reduction process of Yb3+ to Yb2+ ions and optical properties of Bin+/Ybm+, Bin+/Er3+ and Bin+/Er3+/Ybm+ (n, m = 3, 2) co-doped magnesium aluminum silicate glass |
| title_sort |
effects of si4+/al3+ molar concentration ratio on the self-reduction process of yb3+ to yb2+ ions and optical properties of bin+/ybm+, bin+/er3+ and bin+/er3+/ybm+ (n, m = 3, 2) co-doped magnesium aluminum silicate glass |
| publisher |
Optical Materials |
| publishDate |
2024 |
| url |
https://scholar.dlu.edu.vn/handle/123456789/3537 |
| _version_ |
1813142625107050496 |