Browsing by Keywords "Raman-scattering"

Now showing items 1-4 of 4

    • Coupled plasmon-LO-phonon modes in GaInAs quantum wires 

      Mutluay, N.; Tanatar, Bilal (American Institute of Physics., 1996-06-20)
      We study the collective excitation modes of coupled quasi-one-dimensional electron gas and longitudinal-optical phonons in GaInAs quantum wires within the random-phase approximation. In contrast to the higher-dimensional ...

    • Formation of silicon nanocrystals in sapphire by ion implantation and the origin of visible photoluminescence 

      Yerli, S.; Serincan, U.; Dogan, I.; Tokay, S.; Genisel, M.; Aydınlı, Atilla; Turan, R. (AIP Publishing, 2006)
      Silicon nanocrystals, average sizes ranging between 3 and 7 nm, were formed in sapphire matrix by ion implantation and subsequent annealing. Evolution of the nanocrystals was detected by Raman spectroscopy and x-ray ...

    • Free-standing ZnO-CuO composite nanowire array films and their gas sensing properties 

      Wang, J. X.; Sun, X. W.; Yang, Y.; Kyaw, A. K. K.; Huang, X. Y.; Yin, J. Z.; Wei, J.; Demir, Hilmi Volkan (IOP Publishing, 2011-07-19)
      A modified hydrothermal method was developed to synthesize ZnO-CuO composite nanostructures. A free-standing film made of ZnO-CuO nanostructures was assembled on the surface of the hydrothermal solution with a smooth surface ...

    • Quantum dots on vertically aligned gold nanorod monolayer: plasmon enhanced fluorescence 

      Peng, B.; Li, Z.; Mutlugun, E.; Martinez, P. L. H.; Li, D.; Zhang, Q.; Gao, Y.; Demir, Hilmi Volkan; Xiong, Q. (Royal Society of Chemistry, 2014)
      CTAB-coated Au nanorods were directly self-assembled into a vertically aligned monolayer with highly uniform hot spots through a simple but robust approach. By coupling with CdSe/ZnS quantum dots, a maximum enhancement of ...