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Upconversion photoluminescence of sub-micron lanthanum oxysulfide particles co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ synthesized by optimized combustion technique
dc.creator | Ćirić, Aleksandar | |
dc.creator | Sekulić, Milica | |
dc.creator | Shah, Kevil | |
dc.creator | Chakrabarty, Bishwajit S. | |
dc.creator | Dramićanin, Miroslav | |
dc.date.accessioned | 2021-11-09T13:22:31Z | |
dc.date.available | 2021-11-09T13:22:31Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 0925-3467 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/9885 | |
dc.description.abstract | Upconversion sub-micron particles are one of the most perspective materials due to their wide application range, the most important being in the bio-medicinal field where they can be used for labeling, sensing, treatment or drug delivery. Chemically stable upconversion sub-micron particles of La2O2S co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ were synthesized and characterized. Different concentrations of Yb3+/Ho3+ and Yb3+/Tm3+ were successfully incorporated into the hexagonal crystal structure of lanthanum oxysulfide using the optimized solution combustion synthesis method with urea as a fuel. Sub-micron particles of less than 50 nm in diameter showed the typical upconversion photoluminescence when exited by 980 nm laser. The highest PL intensities were obtained in La2O2S co-doped with 8 wt% Yb and 1.5 wt% Ho, or in case of La2O2S:Yb3+/Tm3+ with 4 wt% Yb and 0.5 wt% Tm. The CIE 1976 chromaticity coordinates of Ho3+ photoluminescence emission are (0.119, 0.581), with color purity of 98.7 %. The chromaticity of upconversion emission was invariant to doping concentrations. | en |
dc.language | en | |
dc.relation | Ministry of Education, Science and Technological development of the Republic of Serbia | |
dc.rights | restrictedAccess | |
dc.source | Optical Materials | |
dc.subject | Ho | en |
dc.subject | Solution combustion | en |
dc.subject | Sub-micron particles | en |
dc.subject | Tm | en |
dc.subject | Upconversion | en |
dc.subject | Yb | en |
dc.title | Upconversion photoluminescence of sub-micron lanthanum oxysulfide particles co-doped with Yb3+/Ho3+ and Yb3+/Tm3+ synthesized by optimized combustion technique | |
dc.type | article | en |
dc.rights.license | ARR | |
dc.citation.volume | 120 | |
dc.citation.spage | 111417 | |
dc.identifier.wos | 000691516700005 | |
dc.identifier.doi | 10.1016/j.optmat.2021.111417 | |
dc.citation.rank | M21 | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85111330917 |
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