Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics
Abstract
Up-converting yttrium oxide powders doped with Yb3+ and co-doped with Ho3+ were
synthesized through hydrothermal processing at 200 °C/3 h. Reverse precipitation of the starting nitrates mixture is performed with the help of ammonium hydrogen carbonate (AHC) solution up to pH 7 or pH 9 prior to hydrothermal treatment. Morphological features of the as-prepared (asp)powders and rare earth oxides obtained after powders additional annealing at 1100 oC (3 and 12 h)are discussed based on X-ray powder diffractometry (XRPD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Structural refinement confirmed generation of the cubic bixbyte-structure (S.G. Ia-3) with non-uniform accomodation of dopants at C2 and S6 cationic sites. SEM revealed that the particles have plate-like or rod-like morphology in dependence of hydrothermal processing (pH). Due to the fact that are composed from nanograins (30-100 nm) they demonstrate prominent green luminescence centered at 550 nm... after been excited with the infrared laser source (λ=978 nm).
Keywords:
yttrium oxide powders / Yb3+ doping / Ho3+ doping / hydrothermal synthesisSource:
Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade, 2013, 41-42Publisher:
- Belgrade : Serbian Ceramic Society
Funding / projects:
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Lojpur, Vesna AU - Mančić, Lidija AU - Marinković, Bojan AU - Dramićanin, Miroslav AU - Milošević, Olivera PY - 2013 UR - https://dais.sanu.ac.rs/123456789/419 AB - Up-converting yttrium oxide powders doped with Yb3+ and co-doped with Ho3+ were synthesized through hydrothermal processing at 200 °C/3 h. Reverse precipitation of the starting nitrates mixture is performed with the help of ammonium hydrogen carbonate (AHC) solution up to pH 7 or pH 9 prior to hydrothermal treatment. Morphological features of the as-prepared (asp)powders and rare earth oxides obtained after powders additional annealing at 1100 oC (3 and 12 h)are discussed based on X-ray powder diffractometry (XRPD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Structural refinement confirmed generation of the cubic bixbyte-structure (S.G. Ia-3) with non-uniform accomodation of dopants at C2 and S6 cationic sites. SEM revealed that the particles have plate-like or rod-like morphology in dependence of hydrothermal processing (pH). Due to the fact that are composed from nanograins (30-100 nm) they demonstrate prominent green luminescence centered at 550 nm after been excited with the infrared laser source (λ=978 nm). PB - Belgrade : Serbian Ceramic Society C3 - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade T1 - Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics SP - 41 EP - 42 UR - https://hdl.handle.net/21.15107/rcub_dais_419 ER -
@conference{ author = "Lojpur, Vesna and Mančić, Lidija and Marinković, Bojan and Dramićanin, Miroslav and Milošević, Olivera", year = "2013", abstract = "Up-converting yttrium oxide powders doped with Yb3+ and co-doped with Ho3+ were synthesized through hydrothermal processing at 200 °C/3 h. Reverse precipitation of the starting nitrates mixture is performed with the help of ammonium hydrogen carbonate (AHC) solution up to pH 7 or pH 9 prior to hydrothermal treatment. Morphological features of the as-prepared (asp)powders and rare earth oxides obtained after powders additional annealing at 1100 oC (3 and 12 h)are discussed based on X-ray powder diffractometry (XRPD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Structural refinement confirmed generation of the cubic bixbyte-structure (S.G. Ia-3) with non-uniform accomodation of dopants at C2 and S6 cationic sites. SEM revealed that the particles have plate-like or rod-like morphology in dependence of hydrothermal processing (pH). Due to the fact that are composed from nanograins (30-100 nm) they demonstrate prominent green luminescence centered at 550 nm after been excited with the infrared laser source (λ=978 nm).", publisher = "Belgrade : Serbian Ceramic Society", journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade", title = "Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics", pages = "41-42", url = "https://hdl.handle.net/21.15107/rcub_dais_419" }
Lojpur, V., Mančić, L., Marinković, B., Dramićanin, M.,& Milošević, O.. (2013). Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade Belgrade : Serbian Ceramic Society., 41-42. https://hdl.handle.net/21.15107/rcub_dais_419
Lojpur V, Mančić L, Marinković B, Dramićanin M, Milošević O. Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade. 2013;:41-42. https://hdl.handle.net/21.15107/rcub_dais_419 .
Lojpur, Vesna, Mančić, Lidija, Marinković, Bojan, Dramićanin, Miroslav, Milošević, Olivera, "Effect of processing parameters on structural and morphological Y2O3 :Yb3+/Ho3+ powders characteristics" in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade (2013):41-42, https://hdl.handle.net/21.15107/rcub_dais_419 .