TITLE

Diameter dependence of the electronic structure of ZnO nanorods determined by x-ray absorption spectroscopy and scanning photoelectron microscopy

AUTHOR(S)
Chiou, J. W.; Kumar, K. P. Krishna; Jan, J. C.; Tsai, H. M.; Bao, C. W.; Pong, W. F.; Chien, F. Z.; Tsai, M.-H.; Hong, I.-H.; Klauser, R.; Lee, J. F.; Wu, J. J.; Liu, S. C.
PUB. DATE
October 2004
SOURCE
Applied Physics Letters;10/11/2004, Vol. 85 Issue 15, p3220
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
O K-, Zn L3, and K-edges x-ray absorption near-edge structure (XANES) spectra and scanning photoelectron microscopy (SPEM) spectra were obtained for ZnO nanorods with various diameters. The analysis of the XANES spectra revealed increased numbers of O 2p and Zn 4p unoccupied states with the downsizing of the nanorods, which reflects the enhancement of surface states when the diameter is decreased. Valence-band photoemission spectra show a significant narrowing of the valence band for the 45 nm diameter nanorod. The Zn 3d intensities in the Zn 3d SPEM spectra are drastically diminished for all nanorods as compared to the ZnO reference film, which can be interpreted as a reduction in density of itinerant final states or in transition probability.
ACCESSION #
14909461

 

Related Articles

  • The electronic structure of iron phthalocyanine probed by photoelectron and x-ray absorption spectroscopies and density functional theory calculations. Åhlund, John; Nilson, Katharina; Schiessling, Joachim; Kjeldgaard, Lisbeth; Berner, Simon; Mårtensson, Nils; Puglia, Carla; Brena, Barbara; Nyberg, Mats; Yi Luo // Journal of Chemical Physics;7/21/2006, Vol. 125 Issue 3, p034709 

    A joint experimental and theoretical work to explain the electronic and geometrical structure of an in situ prepared film of iron phthalocyanine (FePc) on silicon (100) is presented. FePc molecular films have been characterized by core and valence photoemission spectroscopy (PES) and x-ray...

  • Comparison of the electronic structures of Zn1-xCoxO and Zn1-xMgxO nanorods using x-ray absorption and scanning photoelectron microscopies. Chiou, J. W.; Tsai, H. M.; Pao, C. W.; Krishna Kumar, K. P.; Ray, S. C.; Chien, F. Z.; Pong, W. F.; Tsai, M.-H.; Chen, C.-H.; Lin, H.-J.; Wu, J. J.; Yang, M.-H.; Liu, S. C.; Chiang, H. H.; Chen, C. W. // Applied Physics Letters;7/24/2006, Vol. 89 Issue 4, p043121 

    X-ray absorption near-edge structure (XANES) and scanning photoelectron microscopy (SPEM) measurements have been performed for Zn1-xCoxO and Zn1-xMgxO to elucidate the effects of the doping of Co and Mg, which have very different electronegativities, on the electronic structures of ZnO nanorods....

  • A comparative study of the electronic structures of oxygen- and chlorine-treated nitrogenated carbon nanotubes by x-ray absorption and scanning photoelectron microscopy. Ray, S. C.; Pao, C. W.; Tsai, H. M.; Chiou, J. W.; Pong, W. F.; Chen, C. W.; Tsai, M.-H.; Papakonstantinou, P.; Chen, L. C.; Chen, K. H. // Applied Physics Letters;11/12/2007, Vol. 91 Issue 20, p202102 

    The electronic structures and bonding properties of oxygen- and chlorine-treated nitrogenated carbon nanotubes (N-CNTs) were studied using x-ray absorption near-edge structure (XANES) and scanning photoelectron microscopy. Features in the C K-edge XANES spectra are shifted by ∼0.3 eV toward...

  • Structural origin of the intermediate phase in Ge-Se glasses. Chen, G.; Inam, F.; Drabold, D. A. // Applied Physics Letters;9/27/2010, Vol. 97 Issue 13, p131901 

    We have conducted x-ray absorption near-edge structure (XANES) experiments on germanium selenide glasses, in search of a structural signature of the intermediate phase (IP). Quantitative analyses of the XANES spectra reveal compositional plateaus that coincide with the IP reversibility window,...

  • Utility of the inverse partial fluorescence for electronic structure studies of battery materials. Wadati, H.; Achkar, A. J.; Hawthorn, D. G.; Regier, T. Z.; Singh, M. P.; Truong, K. D.; Fournier, P.; Chen, G.; Mizokawa, T.; Sawatzky, G. A. // Applied Physics Letters;5/7/2012, Vol. 100 Issue 19, p193906 

    X-ray absorption spectroscopy is one of the most widely used experimental techniques to study the electronic and spatial structure of materials. Fluorescence yield mode is bulk-sensitive, but has several serious problems coming from saturation effects. In this study, we show the usefulness of...

  • XANES and USXES studies of interatomic interactions in (Co41Fe39B20) x (SiO2)1 − x nanocomposites. Domashevskaya, É. P.; Storozhilov, S. A.; Turishchev, S. Yu.; Kashkarov, V. M.; Terekhov, V. A.; Stogneĭ, O. V.; Kalinin, Yu. E.; Sitnikov, A. V.; Molodtsov, S. L. // Physics of the Solid State;Jan2008, Vol. 50 Issue 1, p139 

    The electronic structure and phase composition of (Co41Fe39B20) x (SiO2)1 − x nanocomposites are studied by x-ray absorption near-edge spectroscopy, which is extremely sensitive to the chemical environment of elements in multicomponent compounds. An analysis of the recorded Fe L 2, 3, Co...

  • Temperature dependent electronic structure of Pr0.67Sr0.33MnO3 film probed by X-ray absorption near edge structure. Bangmin Zhang; Cheng-Jun Sun; Jing-Sheng Chen; Venkatesan, T.; Heald, Steve M.; Gan Moog Chow // Journal of Applied Physics;2014, Vol. 115 Issue 17, p17E116-1 

    The Mn K edge X-ray absorption near edge structures (XANES) of Pr0.67Sr0.33MnO3 film (100 nm) on (001) LaAlO3 substrate was measured at different temperatures to probe the MnO6 octahedron distortion and corresponding electronic structure. The absorption of high temperature paramagnetic-insulator...

  • Orientation ordering of N2 molecules in vertically aligned CN x nanotubes. Okotrub, A.; Bulusheva, L.; Kudashov, A.; Belavin, V.; Vyalikh, D.; Molodtsov, S. // Applied Physics A: Materials Science & Processing;Mar2009, Vol. 94 Issue 3, p437 

    Arrays of vertically aligned nitrogen-doped carbon (CN x ) nanotubes have been synthesized by decomposition of aerosol mixture of acetonitrile and ferrocene at 850°C. Nitrogen concentration in the outer shells of the CN x nanotubes was found from X-ray photoelectron spectroscopy (XPS) data...

  • Growth of nanographite on Pt(111) and its edge state. Entani, Shiro; Ikeda, Susumu; Kiguchi, Manabu; Saiki, Koichiro; Yoshikawa, Genki; Nakai, Ikuyo; Kondoh, Hiroshi; Ohta, Toshiaki // Applied Physics Letters;4/10/2006, Vol. 88 Issue 15, p153126 

    The nanographite grains, the diameter of which was around 5 nm, were formed on Pt(111) by exposing the Pt(111) substrate to benzene gas at room temperature and annealing it up to 850 K. The increase of relative number of edge atoms enabled the observation of edge-derived electronic states. The...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics