caa a22 4500 445371986 CHVBK 20180317142950.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00340-010-4233-1 doi (NATIONALLICENCE)springer-10.1007/s00340-010-4233-1 Solvent and surfactant effect on the self-assembly and luminescence properties of ZrO2:Eu3+ nanoparticles [Elektronische Daten] [T. López-Luke, E. De la Rosa, V. Romero, C. Ángles-Chávez, P. Salas] ZrO2:Eu3+ nanocrystals ranging from 17 to 43nm were prepared by the facile precipitation method with a hydrothermal process. The crystallite size was strongly influenced by the solvent composition and enhanced with the presence of surfactant. The use of ethanol combined with surfactant stabilizes 50 wt% of the monoclinic phase, while the use of water only results in 100 wt% tetragonal phase. 80% of nanobelts were obtained preparing the sample with ethanol and surfactant as a results of the self-assembly of nanoparticles. The photoluminescence emission peak centered at 606nm dominates the emission band for nanobelts, while for nanoparticles it is dominated by a peak centered at 612nm. Such differences were explained in terms of the site symmetry occupying Eu3+ in the host that in turn depends on the crystalline phase. Changes in the intensity ratio I(612nm)/I(606 nm) is proposed as a tool to analyzing changes in the monoclinic/tetragonal phase composition. The calculated asymmetry ratio R=7F2/7F1∼1.2 suggest a high degree of crystallinity of the prepared samples. Springer-Verlag, 2010 López-Luke T. Centro de Investigaciones en Óptica, A.P. 1-948, 37160, León Gto, Mexico aut De la Rosa E. Centro de Investigaciones en Óptica, A.P. 1-948, 37160, León Gto, Mexico aut Romero V. Centro de Investigaciones en Óptica, A.P. 1-948, 37160, León Gto, Mexico aut Ángles-Chávez C. Instituto Mexicano del Petróleo, Programa de Ingeniería Molecular, A.P.11-848, 07730, Mexico, DF, Mexico aut Salas P. Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, A.P. 1-1010, 76000, Querétaro, Qro, Mexico aut Applied Physics B Springer-Verlag 102/3(2011-03-01), 641-649 0946-2171 102:3<641 2011 102 340 https://doi.org/10.1007/s00340-010-4233-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-010-4233-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- López-Luke T. Centro de Investigaciones en Óptica, A.P. 1-948, 37160, León Gto, Mexico aut NATIONALLICENCE 700 1- De la Rosa E. Centro de Investigaciones en Óptica, A.P. 1-948, 37160, León Gto, Mexico aut NATIONALLICENCE 700 1- Romero V. Centro de Investigaciones en Óptica, A.P. 1-948, 37160, León Gto, Mexico aut NATIONALLICENCE 700 1- Ángles-Chávez C. Instituto Mexicano del Petróleo, Programa de Ingeniería Molecular, A.P.11-848, 07730, Mexico, DF, Mexico aut NATIONALLICENCE 700 1- Salas P. Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, A.P. 1-1010, 76000, Querétaro, Qro, Mexico aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 102/3(2011-03-01), 641-649 0946-2171 102:3<641 2011 102 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer