%0 Journal Article
%A Amekura, H.
%A Tanaka, M.
%A Katsuya, Y.
%A Yoshikawa, H.
%A Shinotsuka, H.
%A Tanuma, S.
%A Ohnuma, M.
%A Matsushita, Y.
%A Kobayashi, K.
%A Buchal, Ch.
%A Mantl, S.
%A Kishimoto, N.
%T Melting of Zn nanoparticles embedded in SiO2 at high temperatures: Effects on surface plasmon resonances
%J Applied physics letters
%V 96
%@ 0003-6951
%C Melville, NY
%I American Institute of Physics
%M PreJuSER-8124
%P 023110
%D 2010
%Z A part of this study was granted from The Murata Science Foundation. The authors thank the staffs of BL15XU, NIMS, and of SPring-8 for their help at the beamline. The GIXRD measurements at HT were performed under the approval of NIMS Beamline Station (Proposal Nos. 2006B4501, 2007A4501, and 2007B4502).
%X Zn nanoparticles at room temperature show two absorption peaks in the near-infrared (NIR) and the ultraviolet (UV) regions, both of which satisfy the criterion of surface plasmon resonance (SPR). From x-ray diffraction at high temperatures, it was found that the Zn nanoparticles in SiO2 melt at 360-420 degrees C and solidify at 250-310 degrees C with a large temperature hysteresis. While the NIR peak disappears with melting, the UV peak shows sudden energy shift with melting but survives even after the melting. The first-principle band calculation ascribes the UV and NIR peaks to SPR-enhanced inter- and intraband transitions, respectively.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000273689400057
%R 10.1063/1.3290984
%U https://juser.fz-juelich.de/record/8124