Far-infrared absorption spectra and properties of SnO[sub 2] nanorods

Liu, Yingkai; Dong, Yi; Wang, Guanghou
January 2003
Applied Physics Letters;1/13/2003, Vol. 82 Issue 2, p260
Academic Journal
Gray-colored materials synthesized by calcining the precursor powders, which were produced in a microemulsion, are identified to be rutile structured SnO[sub 2] nanorods 20-45 nm in diameter and several micrometers in length by x-ray diffraction, transmission with electron microscopy, and high-resolution transmission microscopy. Conspicuous far-infrared (FIR) absorption spectrum platform peaks with widths of up to 61.6 and 119 cm[sup -1] are observed, and are explained as the overlap of the surface modes of cylindrical and spheroid particles. Good agreement is achieved between FIR platform peaks and calculated results.


Related Articles

  • Effect of Matrix onto Oxidation of Metallic Nanoparticles in Metal-Insulator Nanocomposite Films. FEDOTOVA, J. A. // Acta Physica Polonica, A.;Jun2014, Vol. 125 Issue 6, p1418 

    Paper reports the results of X-ray diffraction, X-ray absorption spectroscopy and the Mössbauer spectroscopy of metal-insulator films sintered in Ar+O atmosphere evidencing the difference in oxidation of FeCoZr nanoparticles embedded into Al2O3 and Pb(ZrTi)O3 matrixes. It is proved that Al2O3...

  • Observation of persistent photoconductance in single ZnO nanotube. Peng Liu; Guangwei She; Zhaoliang Liao; Yao Wang; Zhenzhong Wang; Wensheng Shi; Xiaohong Zhang; Shuit-Tong Lee; Dongmin Chen // Applied Physics Letters;2/9/2009, Vol. 94 Issue 6, pN.PAG 

    Vertically aligned ZnO nanotube fabricated on an indium tin oxide substrate is found to exhibit strong persistent photoconductivity (PPC). Excitation wavelength-dependent conductance measurement on individual ZnO nanotube reveals the presence of defect states at 240 meV above the valence band...

  • Blueshifts in the ultraviolet absorption spectra of amphoteric SnO[sub 2-x] nanocrystalline particles. Tsunekawa, Shin; Kang, Junyong; Asami, Katsuhiko; Kasuya, Atsuo // Journal of Applied Physics;6/15/2002, Vol. 91 Issue 12, p10098 

    Blueshifts in the ultraviolet absorption spectra of amphoteric SnO[sub 2-x] nanocrystalline particles differ greatly in acidic and alkaline sols. X-ray diffraction measurements show that the average lattice strain of the nanocrystalline particles in aqueous ammonia sols is about twice as large...

  • Time-resolved spectroscopic behavior of Fe[sub 2]O[sub 3] and ZnFe[sub 2]O[sub 4] nanocrystals. Limin Fu; Zhenyu Wu, Fujio; Xicheng Ai; Jianping Zhang; Yuxin Nie, Fujio; Sishen Xie, Fujio; Guozheng Yang, Fujio; Bingsuo Zou // Journal of Chemical Physics;2/15/2004, Vol. 120 Issue 7, p3406 

    Using nanosecond (ns) and femtosecond (fs) time-resolved absorption spectroscopies (pump–probe technique), the carrier dynamics in transition metal oxide nanocrystals of α-Fe[sub 2]O[sub 3] and ZnFe[sub 2]O[sub 4] was studied during the photolysis process. For Fe[sub 2]O[sub 3] and...

  • Study of the properties of nanostructured aluminum oxyhydroxide in the terahertz frequency range. Mukhin, V.; Khodan, A.; Nazarov, M.; Shkurinov, A. // Radiophysics & Quantum Electronics;Jan2012, Vol. 54 Issue 8/9, p591 

    Using the method of pulsed terahertz spectroscopy, we study the absorption and refraction spectra of nanostructured aluminum oxyhydroxides and oxides and their chemical modifications by silicon oxide. The obtained experimental results were used in the Bruggeman model of effective medium...

  • BiFeO3/TiO2 core-shell structured nanocomposites as visible-active photocatalysts and their optical response mechanism. Li, Shun; Lin, Yuan-Hua; Zhang, Bo-Ping; Li, Jing-Feng; Nan, Ce-Wen // Journal of Applied Physics;Mar2009, Vol. 105 Issue 5, pN.PAG 

    Anatase titania-coated bismuth ferrite nanocomposites (BiFeO3/TiO2) have been fabricated via a hydrothermal approach combined with a hydrolysis precipitation processing. Analysis of the microstructure and phase composition reveals that a core-shell BiFeO3/TiO2 structure can be formed, which...

  • Electrodeposited nanostructured raspberry-like gold-modified electrodes for electrocatalytic applications. Manivannan, Shanmugam; Ramaraj, Ramasamy // Journal of Nanoparticle Research;Oct2013, Vol. 15 Issue 10, p1 

    A facile method for fabrication of raspberry-like Au nanostructures (Au NRBs)-modified electrode by electrodeposition and its applications toward the electrocatalytic oxidation of methanol (MOR) in alkaline medium and oxygen reduction reaction (ORR) in both alkaline and acidic media are...

  • Synthesis of SnFeO Nanomaterials Via High Energy Ball Milling of SnO (Stannous) and α-FeO (Hematite) Solid Precursors. Uwakweh, Oswald; Más, Rita; Morales, Carolyn; Vargas, Pedro; Silva, Josue; Rosa, Angel; Lopez, Neshma; Moyet, Richard; Cardona, Yenny // Journal of Materials Engineering & Performance;Oct2011, Vol. 20 Issue 7, p1157 

    The synthesis of single phase tin-ferrite, SnFeO, from tin (II) oxide or stannous oxide (SnO), and hematite (α-FeO) solid precursors was carried out via high energy ball milling (HEBM) under wet condition involving the addition of controlled amounts of acetone. The stoichiometric amounts of...

  • Formation of metallic nanoclusters in oxygen deficient indium tin oxide films. Perrière, J.; Hebert, C.; Petitmangin, A.; Portier, X.; Seiler, W.; Nistor, M. // Journal of Applied Physics;Jun2011, Vol. 109 Issue 12, p123704 

    The composition, structure, microstructure, and properties of indium tin oxide films grown by pulsed laser deposition at room temperature and under vacuum were studied. The films are highly nonstoichiometric, with about 20% oxygen deficiency, and present a semiconductor behavior between 300 and...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics