Citrate assisted solvothermal synthesis of beta-NaYF4: Yb, Er up-converting nanoparticles
Authors
Dinić, Ivana
Vuković, Marina

Vulić, Predrag

Nikolić, Marko G.

Milošević, Olivera

Mančić, Lidija

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Thanks to the unique optical properties, up-converting nanoparticles (UCNPs) have a wide application in optoelectronics, forensics, security and biomedicine. The synthesis of the most efficient hexagonal β-NaYF4: Yb/Er phase is usually performed through thermal decomposition of organic precursors which could cause the UCNP cytotoxicity. Since cubic polymorph is kinetically more stable than hexagonal, we used citric acid and Na-citrate for the nucleation of hexagonal NaYF4: Yb, Er phase in nanosized particles. Additionally, effect of different precipitation agents (NaF, NH4F and NH4HF2) used during solvothermal synthesis is explored. The XRPD analysis showed that using of citric acid led to a product composed from mixture of cubic and hexagonal NaYF4: Yb/Er phase, while the presence of Na-citrate influences the nucleation of well crystallized hexagonal β-NaYF4: Yb/Er phase, regardless of precipitation agents used. All samples are composed of polycrystalline spherical particles which siz...e is influenced by the precursor chemistry. UCNPs 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-conversion / nanoparticles / β-NaYF4: Yb/Er / cytotoxicitySource:
Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019, 2019, 128-128Publisher:
- Belgrade : Materials Research Society of Serbia
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Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Dinić, Ivana AU - Vuković, Marina AU - Vulić, Predrag AU - Nikolić, Marko G. AU - Milošević, Olivera AU - Mančić, Lidija PY - 2019 UR - https://dais.sanu.ac.rs/123456789/6672 AB - Thanks to the unique optical properties, up-converting nanoparticles (UCNPs) have a wide application in optoelectronics, forensics, security and biomedicine. The synthesis of the most efficient hexagonal β-NaYF4: Yb/Er phase is usually performed through thermal decomposition of organic precursors which could cause the UCNP cytotoxicity. Since cubic polymorph is kinetically more stable than hexagonal, we used citric acid and Na-citrate for the nucleation of hexagonal NaYF4: Yb, Er phase in nanosized particles. Additionally, effect of different precipitation agents (NaF, NH4F and NH4HF2) used during solvothermal synthesis is explored. The XRPD analysis showed that using of citric acid led to a product composed from mixture of cubic and hexagonal NaYF4: Yb/Er phase, while the presence of Na-citrate influences the nucleation of well crystallized hexagonal β-NaYF4: Yb/Er phase, regardless of precipitation agents used. All samples are composed of polycrystalline spherical particles which size is influenced by the precursor chemistry. UCNPs 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 - Belgrade : Materials Research Society of Serbia C3 - Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019 T1 - Citrate assisted solvothermal synthesis of beta-NaYF4: Yb, Er up-converting nanoparticles SP - 128 EP - 128 UR - https://hdl.handle.net/21.15107/rcub_dais_6672 ER -
@conference{ author = "Dinić, Ivana and Vuković, Marina and Vulić, Predrag and Nikolić, Marko G. and Milošević, Olivera and Mančić, Lidija", year = "2019", abstract = "Thanks to the unique optical properties, up-converting nanoparticles (UCNPs) have a wide application in optoelectronics, forensics, security and biomedicine. The synthesis of the most efficient hexagonal β-NaYF4: Yb/Er phase is usually performed through thermal decomposition of organic precursors which could cause the UCNP cytotoxicity. Since cubic polymorph is kinetically more stable than hexagonal, we used citric acid and Na-citrate for the nucleation of hexagonal NaYF4: Yb, Er phase in nanosized particles. Additionally, effect of different precipitation agents (NaF, NH4F and NH4HF2) used during solvothermal synthesis is explored. The XRPD analysis showed that using of citric acid led to a product composed from mixture of cubic and hexagonal NaYF4: Yb/Er phase, while the presence of Na-citrate influences the nucleation of well crystallized hexagonal β-NaYF4: Yb/Er phase, regardless of precipitation agents used. All samples are composed of polycrystalline spherical particles which size is influenced by the precursor chemistry. UCNPs 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 = "Belgrade : Materials Research Society of Serbia", journal = "Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019", title = "Citrate assisted solvothermal synthesis of beta-NaYF4: Yb, Er up-converting nanoparticles", pages = "128-128", url = "https://hdl.handle.net/21.15107/rcub_dais_6672" }
Dinić, I., Vuković, M., Vulić, P., Nikolić, M. G., Milošević, O.,& Mančić, L.. (2019). Citrate assisted solvothermal synthesis of beta-NaYF4: Yb, Er up-converting nanoparticles. in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019 Belgrade : Materials Research Society of Serbia., 128-128. https://hdl.handle.net/21.15107/rcub_dais_6672
Dinić I, Vuković M, Vulić P, Nikolić MG, Milošević O, Mančić L. Citrate assisted solvothermal synthesis of beta-NaYF4: Yb, Er up-converting nanoparticles. in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019. 2019;:128-128. https://hdl.handle.net/21.15107/rcub_dais_6672 .
Dinić, Ivana, Vuković, Marina, Vulić, Predrag, Nikolić, Marko G., Milošević, Olivera, Mančić, Lidija, "Citrate assisted solvothermal synthesis of beta-NaYF4: Yb, Er up-converting nanoparticles" in Programme and The Book of abstracts / Twenty-first Annual Conference YUCOMAT 2019 & Eleventh World Round Table Conference on Sintering WRTCS 2019, Herceg Novi, Montenegro, September 2-6, 2019 (2019):128-128, https://hdl.handle.net/21.15107/rcub_dais_6672 .