Solvothermal synthesis of NaGdYF4:Yb,Er UCNPs with different structual, morphological and optical properties
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Up-Converting NanoParticles (UCNPs) with biocompatible surface and unique optical properties, low phonon energy (350 cm-1) and high chemical stability attract a great interest as potential biomarkers or drug delivery systems. The hydro/solvo thermal method, as one of the most economical method which do not include the use of toxic precursors, was applied here for the synthesis of NaY0.65Gd0.15F4:Yb,Er nanoparticles at 200oC. Chitosan is used as surfactant and structural directing agent. In addition, different processing parameters (precursor concentration, solvent type, and synthesis time) were applied to investigate their influence on the structural, morphological, and optical properties of UCNP. The XRD analysis showed that with a smaller surplus of fluoride ions the formation of Y0.65Gd0.15F4:Yb,Er orthorhombic phase occurs, while the increase of fluoride content or reaction time leads to NaY0.65Gd0.15F4:Yb,Er cubic phase formation. Along with it, the changes of UCNPs morphology fro...m spindle to spherical shape is detected. All samples emit intense green emission due to the (2H11/2, 4S3/2) → 4I15/2 electronic transitions, after been excited with infrared light (λ=978 nm).
Keywords:
up-converting nanoparticles / solvothermal synthesis / morphology / optical properties / chitosanSource:
Programme and book of abstracts / 14th ECerS Conference for Young Scientists in Ceramics (CYSC-2021), October 20-23, 2021, Novi Sad, 2021, 121-121Publisher:
- Novi Sad : Faculty of Technology
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Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Dinić, Ivana AU - Vuković, Marina AU - Nikolić, Marko G. AU - Mančić, Lidija PY - 2021 UR - https://dais.sanu.ac.rs/123456789/12396 AB - Up-Converting NanoParticles (UCNPs) with biocompatible surface and unique optical properties, low phonon energy (350 cm-1) and high chemical stability attract a great interest as potential biomarkers or drug delivery systems. The hydro/solvo thermal method, as one of the most economical method which do not include the use of toxic precursors, was applied here for the synthesis of NaY0.65Gd0.15F4:Yb,Er nanoparticles at 200oC. Chitosan is used as surfactant and structural directing agent. In addition, different processing parameters (precursor concentration, solvent type, and synthesis time) were applied to investigate their influence on the structural, morphological, and optical properties of UCNP. The XRD analysis showed that with a smaller surplus of fluoride ions the formation of Y0.65Gd0.15F4:Yb,Er orthorhombic phase occurs, while the increase of fluoride content or reaction time leads to NaY0.65Gd0.15F4:Yb,Er cubic phase formation. Along with it, the changes of UCNPs morphology from spindle to spherical shape is detected. All samples emit intense green emission due to the (2H11/2, 4S3/2) → 4I15/2 electronic transitions, after been excited with infrared light (λ=978 nm). PB - Novi Sad : Faculty of Technology C3 - Programme and book of abstracts / 14th ECerS Conference for Young Scientists in Ceramics (CYSC-2021), October 20-23, 2021, Novi Sad T1 - Solvothermal synthesis of NaGdYF4:Yb,Er UCNPs with different structual, morphological and optical properties SP - 121 EP - 121 UR - https://hdl.handle.net/21.15107/rcub_dais_12396 ER -
@conference{ author = "Dinić, Ivana and Vuković, Marina and Nikolić, Marko G. and Mančić, Lidija", year = "2021", abstract = "Up-Converting NanoParticles (UCNPs) with biocompatible surface and unique optical properties, low phonon energy (350 cm-1) and high chemical stability attract a great interest as potential biomarkers or drug delivery systems. The hydro/solvo thermal method, as one of the most economical method which do not include the use of toxic precursors, was applied here for the synthesis of NaY0.65Gd0.15F4:Yb,Er nanoparticles at 200oC. Chitosan is used as surfactant and structural directing agent. In addition, different processing parameters (precursor concentration, solvent type, and synthesis time) were applied to investigate their influence on the structural, morphological, and optical properties of UCNP. The XRD analysis showed that with a smaller surplus of fluoride ions the formation of Y0.65Gd0.15F4:Yb,Er orthorhombic phase occurs, while the increase of fluoride content or reaction time leads to NaY0.65Gd0.15F4:Yb,Er cubic phase formation. Along with it, the changes of UCNPs morphology from spindle to spherical shape is detected. All samples emit intense green emission due to the (2H11/2, 4S3/2) → 4I15/2 electronic transitions, after been excited with infrared light (λ=978 nm).", publisher = "Novi Sad : Faculty of Technology", journal = "Programme and book of abstracts / 14th ECerS Conference for Young Scientists in Ceramics (CYSC-2021), October 20-23, 2021, Novi Sad", title = "Solvothermal synthesis of NaGdYF4:Yb,Er UCNPs with different structual, morphological and optical properties", pages = "121-121", url = "https://hdl.handle.net/21.15107/rcub_dais_12396" }
Dinić, I., Vuković, M., Nikolić, M. G.,& Mančić, L.. (2021). Solvothermal synthesis of NaGdYF4:Yb,Er UCNPs with different structual, morphological and optical properties. in Programme and book of abstracts / 14th ECerS Conference for Young Scientists in Ceramics (CYSC-2021), October 20-23, 2021, Novi Sad Novi Sad : Faculty of Technology., 121-121. https://hdl.handle.net/21.15107/rcub_dais_12396
Dinić I, Vuković M, Nikolić MG, Mančić L. Solvothermal synthesis of NaGdYF4:Yb,Er UCNPs with different structual, morphological and optical properties. in Programme and book of abstracts / 14th ECerS Conference for Young Scientists in Ceramics (CYSC-2021), October 20-23, 2021, Novi Sad. 2021;:121-121. https://hdl.handle.net/21.15107/rcub_dais_12396 .
Dinić, Ivana, Vuković, Marina, Nikolić, Marko G., Mančić, Lidija, "Solvothermal synthesis of NaGdYF4:Yb,Er UCNPs with different structual, morphological and optical properties" in Programme and book of abstracts / 14th ECerS Conference for Young Scientists in Ceramics (CYSC-2021), October 20-23, 2021, Novi Sad (2021):121-121, https://hdl.handle.net/21.15107/rcub_dais_12396 .