caa a22 4500 463214102 CHVBK 20180405153151.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s00339-006-3775-x doi (NATIONALLICENCE)springer-10.1007/s00339-006-3775-x Temperature dependence of the lowest frequency E g Raman mode in laser-synthesized anatase TiO2 nanopowder [Elektronische Daten] [M.J. Šćepanović, M. Grujić-Brojčin, Z.D. Dohčević-Mitrović, Z.V. Popović] Nanosized titanium dioxide (TiO2) powder was prepared by a laser-induced pyrolysis. Specific surface area of the as-grown powder measured by BET method was 109m2/g. The grain size (14.5nm) estimated from these data coincides well with the crystallite size (12.3nm) determined by XRD measurements. The average grain size (∼35nm) obtained from the subsequent SEM measurements refers to considerable agglomeration of nanoparticles. Raman spectroscopy has been used to investigate the structural properties of TiO2 nanopowder and its anatase structure is confirmed. The blueshift and broadening of the lowest frequency Eg Raman mode at temperature range ∼25-550K have been analyzed using a phonon-confinement model. Dominant influence of the strong anharmonic effect at higher temperatures was demonstrated. Springer-Verlag, 2006 Šćepanović M.J. Institute of Physics, Center for Solid State Physics and New Materials, Pregrevica 118, 11080, Belgrade, Serbia aut Grujić-Brojčin M. Institute of Physics, Center for Solid State Physics and New Materials, Pregrevica 118, 11080, Belgrade, Serbia aut Dohčević-Mitrović Z.D. Institute of Physics, Center for Solid State Physics and New Materials, Pregrevica 118, 11080, Belgrade, Serbia aut Popović Z.V. Institute of Physics, Center for Solid State Physics and New Materials, Pregrevica 118, 11080, Belgrade, Serbia aut Applied Physics A Springer-Verlag 86/3(2007-03-01), 365-371 0947-8396 86:3<365 2007 86 339 https://doi.org/10.1007/s00339-006-3775-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-006-3775-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Šćepanović M.J. Institute of Physics, Center for Solid State Physics and New Materials, Pregrevica 118, 11080, Belgrade, Serbia aut NATIONALLICENCE 700 1- Grujić-Brojčin M. Institute of Physics, Center for Solid State Physics and New Materials, Pregrevica 118, 11080, Belgrade, Serbia aut NATIONALLICENCE 700 1- Dohčević-Mitrović Z.D. Institute of Physics, Center for Solid State Physics and New Materials, Pregrevica 118, 11080, Belgrade, Serbia aut NATIONALLICENCE 700 1- Popović Z.V. Institute of Physics, Center for Solid State Physics and New Materials, Pregrevica 118, 11080, Belgrade, Serbia aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 86/3(2007-03-01), 365-371 0947-8396 86:3<365 2007 86 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer